Nickel-based alloy ultra-pure material and preparation method thereof

Abstract

The invention relates to the technical field of nickel-based alloys, and discloses a nickel-based alloy ultrapure material and a preparation method thereof.The nickel-based alloy ultrapure material comprises, by mass, 45-50 parts of nickel powder, 10-15 parts of chromium powder, 8-10 parts of molybdenum powder, 3-5 parts of copper powder, 4-5 parts of boron powder, 3-4 parts of silicon powder and 5-7 parts of an alloy reinforcing agent. Nickel is used as a matrix of the alloy, chromium, molybdenum, copper, boron and silicon elements and an alloy reinforcing agent are introduced, and the fine-grained nickel-based alloy ultra-pure material is prepared through step-by-step heating under vacuum melting and has high strength and toughness; in the process of preparing the nickel-based alloy material, a carbon network structure formed by the alloy reinforcing agent can form a carbide reinforcing phase with the alloy powder and silicon elements contained in the double-bond silane, gaps of the alloy material are filled with the carbide reinforcing phase, the compactness of the alloy material is improved, and the mechanical performance of the alloy material is enhanced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of nickel-based alloys, in particular to a nickel-based alloy ultra-pure material and a preparation method thereof. BACKGROUND

[0002] The nickel-based alloy is prepared by adding other alloy elements to a nickel-based matrix and melting, and has good high-temperature resistance, corrosion resistance and mechanical properties, and is widely applied to the fields of aerospace, petrochemical industry, integrated circuits and ocean engineering, etc. With the development of science and technology and the progress of industry, the requirements for the strength, high-temperature resistance, corrosion resistance and good processing performance of the nickel-based alloy are higher and higher, and the traditional nickel-based alloy is difficult to meet the requirements in extreme environments, therefore, it is necessary to develop a nickel-based alloy material with higher performance.

[0003] However, in the production and manufacturing process of the existing nickel-based alloy, the nickel powder and other metal elements are prone to poor interface bonding, forming pores or cracks in the sintering process due to large differences in melting points, affecting the mechanical properties of the alloy, and the nickel-based alloy also has problems of coarse grains and poor uniformity, affecting the performance of the nickel-based alloy material and limiting the application field of the nickel-based alloy material. SUMMARY

[0004] The application provides a nickel-based alloy ultra-pure material and a preparation method thereof, and solves the problems of low mechanical strength and coarse grains of the nickel-based alloy ultra-pure material.

[0005] The technical scheme of the application is as follows: A nickel-based alloy ultra-pure material, which comprises the following raw materials in parts by mass: 45-50 parts of nickel powder, 10-15 parts of chromium powder, 8-10 parts of molybdenum powder, 3-5 parts of copper powder, 4-5 parts of boron powder, 3-4 parts of silicon powder and 5-7 parts of alloy reinforcing agent. The alloy reinforcing agent is prepared by synthesizing four needle-shaped zinc oxide whiskers on the surface of titanium carbide nanosheets, and then mixing with composite nanoparticles; The composite nanoparticles are prepared by modifying nanotitanium diboride with double-bonded silane on the surface, and then mixing and reacting with methyl methacrylate, acrylic acid and carboxymethyl cellulose; A preparation method of a nickel-based alloy ultra-pure material, comprising the following preparation steps: S1. The nickel powder, chromium powder, molybdenum powder, copper powder, boron powder, silicon powder and alloy reinforcing agent are uniformly mixed, ball milled, and sieved to obtain mixed powder; S2. After argon is introduced into a melting furnace to adjust the vacuum degree, preheating is performed, the mixed powder is added, step-by-step melting is performed to form a mixed melt, the mixed melt is poured into a mold, and demolding is performed to obtain the nickel-based alloy ultra-pure material.

[0006] Further, in step S1, the ball milling is performed by using a ball mill, the ball milling atmosphere is argon, the ball material is tungsten carbide with a diameter of 10 mm, the ball-to-material ratio is 10:1, the ball milling speed is 500-600 r / min, and the ball milling time is 20-22 h.

[0007] Further, in step S2, the step-by-step melting is performed by maintaining the temperature at 1000-1050 ℃ for 20-25 min, at 1500-1550 ℃ for 30-35 min, and at 1800-1850 ℃ for 10-15 min.

[0008] Further, the alloy reinforcing agent is prepared by the following steps: A1. The nano-titanium diboride is added to ethanol and deionized water, stirred until uniform, then a double-bond silane is added, followed by adding hydrochloric acid to adjust the pH, and then stirred and reacted, cooled to room temperature, filtered, washed, and dried to obtain double-bond nano-titanium diboride; A2. The carboxymethyl cellulose and deionized water are mixed and stirred until completely dissolved, then cellulase is added, and after stirring and hydrolysis, the temperature is raised to 85 ℃, acetic acid is added to adjust the pH, and then ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid, and double-bond nano-titanium diboride are added, and after stirring and reaction, the temperature is cooled to room temperature, the precipitate is collected by centrifugation, and the precipitate is washed and dried to obtain composite nanoparticles; A3. The titanium carbide nanosheet and tannic acid are added to deionized water, stirred until uniform, filtered, washed, and dried to obtain tannic acid-modified titanium carbide nanosheet; A4. The zinc nitrate hexahydrate is added to deionized water, stirred until uniform, then ammonia water and tannic acid-modified titanium carbide nanosheet are added, stirred until uniform, placed in a reaction kettle, and stirred at 180-190 ℃ for 22-24 h, cooled to room temperature, filtered, washed, and dried to obtain modified titanium carbide nanosheet; A5. The composite nanoparticles are added to ethanol, stirred until uniform, then the modified titanium carbide nanosheet is added, stirred and mixed, and then the temperature is raised and stirred until the ethanol evaporates to obtain the alloy reinforcing agent.

[0009] Further, in the reaction process of A1, the silicon hydroxyl generated by the hydrolysis of the double-bond silane can be combined with the hydroxyl on the surface of the nano-titanium diboride through a chemical bond, so that the double-bond silane is grafted on the surface of the nano-titanium diboride to obtain double-bond nano-titanium diboride.

[0010] Further, in the above A2 reaction process, ferrous sulfate and hydrogen peroxide as initiator, methyl methacrylate and acrylic acid are polymerized to form polymer particles, and the double bond of the double bond nano titanium diboride can also participate in the polymerization reaction, so that the double bond of the double bond nano titanium diboride is dispersed in the polymer particles. Carboxymethyl cellulose as an emulsifier, containing carboxyl groups can interact with polymer particles, coated on the surface of polymer particles, limiting the growth of polymer particles, forming nanoscale composite nanoparticles.

[0011] Further, in the above A3 reaction process, tannic acid contains a large number of phenolic hydroxyl groups, has good adhesion, and can adhere to the surface of titanium carbide nanosheet, so that the surface of titanium carbide nanosheet carries a large number of phenolic hydroxyl groups, and tannic acid modified titanium carbide nanosheet is obtained.

[0012] Further, in the above A4 reaction process, the phenolic hydroxyl groups contained on the surface of the tannic acid modified titanium carbide nanosheet can combine with the zinc ions in zinc nitrate hexahydrate, so that the zinc ions are deposited on the surface of the titanium carbide nanosheet, and the hydroxyl ions provided by the ammonia can combine with the zinc ions to form hydroxide. Hydroxide is decomposed to form zinc oxide crystal nucleus at 180-190℃, and with the progress of the reaction, the zinc oxide crystal nucleus grows along the titanium carbide nanosheet to synthesize four needle-shaped zinc oxide whiskers on the surface of the titanium carbide nanosheet, and the modified titanium carbide nanosheet is obtained.

[0013] Further, in the above A5 reaction process, the composite nanoparticles are dispersed in the organic solvent ethanol, which has good fluidity, and the nanoscale composite nanoparticles can penetrate into the gap between the whiskers on the surface of the modified titanium carbide nanosheet. The surface of the composite nanoparticles contains a large number of carboxyl functional groups, which can combine with the modified titanium carbide nanosheet, so that the composite nanoparticles are uniformly deposited on the surface of the modified titanium carbide nanosheet, and the alloy reinforcing agent is obtained.

[0014] Further, in step A1, the mass ratio of nano titanium diboride, ethanol, deionized water and double bond silane is (2-3):(110-130):(50-60):(1-1.5).

[0015] Further, in step A2, the mass ratio of carboxymethyl cellulose, deionized water, cellulase, ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double bond nano titanium diboride is (6-7):(85-95):(0.01-0.03):(0.1-0.3):(0.1-0.2):(6-8):(2-4):(1-3).

[0016] Further, in step A3, the mass ratio of titanium carbide nanosheet, tannic acid and deionized water is (2.5-3):(0.5-1):(80-90).

[0017] Further, in step A4, the mass ratio of zinc nitrate hexahydrate, deionized water, ammonia water and tannic acid modified titanium carbide nanosheet is (2-3):(70-80):(3-4):(3-3.5).

[0018] Further, in step A5, the mass ratio of composite nanoparticles, ethanol and modified titanium carbide nanosheet is (2-2.5):(100-120):(3-4).

[0019] Further, the nano-titanium diboride particle size is 20-70nm.

[0020] Further, the titanium carbide nanosheet has a sheet diameter of 8-15um and a thickness of 100-200nm.

[0021] Further, the double bond silane is KH570 (gamma-methacryloxypropyl trimethoxysilane).

[0022] The present application has the following beneficial effects: (1) In the technical scheme of the present application, the double-bonded nano-titanium diboride is mixed with methyl methacrylate, acrylic acid and carboxymethyl cellulose, and then emulsion polymerization is carried out to form composite nanoparticles. On the one hand, nano-titanium diboride has high hardness, melting point and mechanical strength, and can be used as a heterogeneous nucleation core to inhibit the grain growth of nickel-based alloy materials and improve the mechanical properties of nickel-based alloy materials. On the other hand, the double-bonded modified nano-titanium diboride is copolymerized with methyl methacrylate and acrylic acid to increase the crosslinking density of the composite nanoparticles, which is beneficial to the formation of a carbon network structure with high crosslinking degree and the improvement of the mechanical properties of the alloy material.

[0023] (2) In the technical scheme of the present application, the four-needle-shaped zinc oxide whiskers synthesized on the surface of the titanium carbide nanosheet have a unique four-dimensional spatial structure, with 4 needle-shaped crystals extending radially from the core. They can form mechanical interlocking with the alloy material to improve the density of the alloy and thus improve the strength of the alloy material. In addition, the lamellar structure of the titanium carbide nanosheet acts as a physical barrier for dislocation movement in the alloy material, hindering the dislocation slip of the alloy material and improving the fracture toughness of the tungsten alloy. Furthermore, the titanium carbide nanosheet can hinder the penetration of corrosive media in the alloy material, thereby improving the corrosion resistance and mechanical properties of the nickel-based alloy.

[0024] (3) In the technical scheme of the present application, the composite nanoparticles penetrate into the gaps between the whiskers on the surface of the modified titanium carbide nanosheet. On the one hand, the composite nanoparticles can increase the density between the whiskers, avoid large gaps between the whiskers, form cracks in the alloy material, and affect the mechanical properties of the alloy material. The surface of the composite nanoparticles contains a large number of carboxyl functional groups, which are coated on the surface of the modified titanium carbide nanosheet to endow the modified titanium carbide nanosheet with oxygen-containing functional groups, so that the modified titanium carbide nanosheet is tightly combined with the alloy powder, which is beneficial to the formation of a dense and uniform alloy material and the improvement of the mechanical properties of the alloy material. On the other hand, during the preparation of the nickel-based alloy material, the cross-linked carbon network structure formed by the thermal decomposition of the cross-linked network structure of the composite nanoparticles can absorb and weaken the external gravity, thereby improving the mechanical properties of the alloy material. The cross-linked carbon network structure can be riveted at the interface of the nickel-based alloy material, further inhibiting the grain growth of the nickel-based alloy material, refining the alloy material grains, and improving the mechanical properties of the alloy material. In addition, the formed carbon network structure can form a carbide reinforced phase with the silicon element contained in the alloy powder and double-bonded silane, which can fill the gaps in the alloy material and improve the density and mechanical properties of the alloy material.

[0025] (4) In the technical scheme of the present application, nickel is used as the base of the alloy, and chromium, molybdenum, copper, boron, silicon elements and alloy reinforcing agents are introduced. The nickel-based alloy ultra-pure material with fine particle size is prepared by stepwise heating under vacuum melting, which has high strength and toughness. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below by combining with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] The raw materials used in the embodiments of the present application are shown below, and all the reagents used are analytical grade.

[0028] Among them, the nickel powder has a particle size of 2.5 μm and is purchased from Shanghai Shuitian Material Technology Co., Ltd.

[0029] The chromium powder has a particle size of 3.5 μm and is purchased from Guangdong Small Chemical Co., Ltd.

[0030] The molybdenum powder has a particle size of 1 μm and the copper powder has a particle size of 1 μm, which are purchased from Shanghai Shuitian Material Technology Co., Ltd.

[0031] The boron powder has a particle size of 2.5 μm and the silicon powder has a particle size of 3 μm, which are purchased from Shanghai Aladdin Biochem Technology Co., Ltd.

[0032] Titanium diboride nanoparticles with the product number JL-TiB2-N50, particle size of 50 nm, were purchased from Ningbo Jinlei Nanometer Material Technology Co., Ltd.

[0033] Titanium carbide nanosheets with a flake size of 10 μm and a thickness of 150 nm were purchased from Zhongke Leiming (Beijing) Technology Co., Ltd.

[0034] The double-bonded silane was KH570 (γ-methacryloxypropyltrimethoxysilane).

[0035] Example 1 A nickel-based alloy ultra-pure material, comprising the following raw materials by mass fraction: nickel powder 45 parts, chromium powder 10 parts, molybdenum powder 8 parts, copper powder 5 parts, boron powder 4 parts, silicon powder 3 parts, alloy reinforcing agent 5 parts; A preparation method of a nickel-based alloy ultra-pure material, comprising the following preparation steps: S1. The nickel powder, chromium powder, molybdenum powder, copper powder, boron powder, silicon powder and alloy reinforcing agent were mixed uniformly, ball milled, and passed through a 200 mesh screen to obtain a mixed powder; S2. Argon was introduced into a melting furnace to a vacuum degree of 0.8 × 10 5 Pa, after preheating at 200℃, the mixed powder was added, and a mixed melt was formed by stepwise melting. The mixed melt was poured into a mold, demolded, and a nickel-based alloy ultra-pure material was obtained.

[0036] In step S1, the ball milling was performed using a ball mill, the ball milling atmosphere was argon, the ball material was tungsten carbide with a diameter of 10 mm, the ball material ratio was 10:1, the ball milling speed was 500 r / min, and the ball milling time was 20 h; In step S2, the stepwise melting was specifically: holding at 1000℃ for 20 min, holding at 1500℃ for 30 min, and holding at 1800℃ for 10 min.

[0037] The alloy reinforcing agent was specifically prepared by the following steps: A1. The titanium diboride nanoparticles were added to ethanol and deionized water, stirred uniformly, and then KH570 was added. After that, hydrochloric acid with a concentration of 1 mol / L was added to adjust the pH to 3.5. The mixture was stirred and reacted at 70℃ for 2 h, cooled to room temperature, filtered, washed with ethanol for 3 times, washed with deionized water for 3 times, and dried in a 70℃ oven for 10 min to obtain double-bonded titanium diboride nanoparticles. The mass ratio of titanium diboride nanoparticles, ethanol, deionized water and KH570 was 2:110:50:1; A2. Carboxymethyl cellulose and deionized water were mixed and stirred until completely dissolved, and cellulase was added. After hydrolysis at 55℃ for 1h, the temperature was raised to 85℃, acetic acid was added to adjust the pH to 6, and ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double-bonded nano titanium diboride were added. After stirring at 85℃ for 1h, the mixture was cooled to room temperature and centrifuged at 10,000r / min to collect the precipitate. The precipitate was washed with deionized water three times and dried in an oven at 70℃ for 10min to obtain composite nanoparticles. The mass ratio of carboxymethyl cellulose, deionized water, cellulase, ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double-bonded nano titanium diboride was 6:85:0.01:0.1:0.1:6:2:1; A3. Titanium carbide nanosheets and tannic acid were added to deionized water and stirred at 70℃ for 10min. After filtration, the mixture was washed with deionized water three times and dried in an oven at 70℃ for 15min to obtain tannic acid-modified titanium carbide nanosheets. The mass ratio of titanium carbide nanosheets, tannic acid and deionized water was 2.5:0.5:80; A4. Zinc nitrate hexahydrate was added to deionized water and stirred until uniform. Ammonia water and tannic acid-modified titanium carbide nanosheets were added and stirred until uniform. The mixture was placed in a reaction kettle and stirred at 180℃ for 22h. After cooling to room temperature, the mixture was filtered and washed with deionized water five times. The mixture was dried in an oven at 60℃ for 20min to obtain modified titanium carbide nanosheets. The mass ratio of zinc nitrate hexahydrate, deionized water, ammonia water and tannic acid-modified titanium carbide nanosheets was 2:70:3:3; A5. The composite nanoparticles were added to ethanol and stirred until uniform. The modified titanium carbide nanosheets were added and stirred at 70℃ and 800r / min for 30min. The temperature was raised to 85℃ and the ethanol was allowed to evaporate. An alloy reinforcing agent was obtained. The mass ratio of composite nanoparticles, ethanol and modified titanium carbide nanosheets was 2:100:3.

[0038] Example 2 A nickel-based alloy ultra-pure material, comprising the following raw materials by mass: 48 parts of nickel powder, 13 parts of chromium powder, 9 parts of molybdenum powder, 4 parts of copper powder, 4.5 parts of boron powder, 3.5 parts of silicon powder and 6 parts of alloy reinforcing agent; A preparation method of a nickel-based alloy ultra-pure material, comprising the following preparation steps: S1. The nickel powder, chromium powder, molybdenum powder, copper powder, boron powder, silicon powder and alloy reinforcing agent were mixed uniformly, ball milled and passed through a 200 mesh screen to obtain a mixed powder; S2. Argon was introduced into a melting furnace until the vacuum degree was 0.8×10 5 Pa, and after preheating at 200℃, the mixed powder was added. The mixed melt was formed by stepwise melting and poured into a mold. After demolding, a nickel-based alloy ultra-pure material was obtained.

[0039] In step S1, the ball milling is performed by using a ball mill, the ball milling atmosphere is argon, the ball material is tungsten carbide with a diameter of 10 mm, the ball-to-material ratio is 10:1, the ball milling speed is 550 r / min, and the ball milling time is 21 h. In step S2, the step-by-step melting is specifically as follows: holding at 1025℃ for 23 min, holding at 1525℃ for 33 min, and holding at 1825℃ for 13 min.

[0040] The alloy reinforcing agent is specifically prepared by the following steps: A1. The nano titanium diboride is added into ethanol and deionized water, stirred uniformly, and then KH570 is added. After that, hydrochloric acid with a concentration of 1 mol / L is added to adjust the pH to 3.5. The mixture is stirred and reacted at 70℃ for 2 h, cooled to room temperature, filtered, washed with ethanol for 3 times, washed with deionized water for 3 times, and dried in a 70℃ oven for 10 min to obtain the double-bonded nano titanium diboride. The mass ratio of the nano titanium diboride, ethanol, deionized water and KH570 is 2.5:120:55:1.3. A2. The carboxymethyl cellulose and deionized water are mixed and stirred until completely dissolved. Then, cellulase is added. After stirring and hydrolyzing at 55℃ for 1 h, the temperature is raised to 85℃. Acetic acid is added to adjust the pH to 6. Ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double-bonded nano titanium diboride are added. The mixture is stirred and reacted at 85℃ for 1 h, cooled to room temperature, centrifuged at 10000 r / min to collect the precipitate, and the precipitate is washed with deionized water for 3 times and dried in a 70℃ oven for 10 min to obtain the composite nanoparticles. The mass ratio of the carboxymethyl cellulose, deionized water, cellulase, ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double-bonded nano titanium diboride is 6.5:90:0.02:0.2:0.15:7:3:2. A3. The titanium carbide nanosheet and tannic acid are added into deionized water, stirred at 70℃ for 10 min, filtered, washed with deionized water for 3 times, and dried in a 70℃ oven for 15 min to obtain the tannic acid modified titanium carbide nanosheet. The mass ratio of the titanium carbide nanosheet, tannic acid and deionized water is 2.8:0.8:85. A4. The zinc nitrate hexahydrate is added into deionized water, stirred uniformly, and then ammonia water and the tannic acid modified titanium carbide nanosheet are added. The mixture is stirred uniformly, placed in a reaction kettle, stirred and reacted at 185℃ for 23 h, cooled to room temperature, filtered, washed with deionized water for 5 times, and dried in a 60℃ oven for 20 min to obtain the modified titanium carbide nanosheet. The mass ratio of the zinc nitrate hexahydrate, deionized water, ammonia water and tannic acid modified titanium carbide nanosheet is 2.5:75:3.5:3.3. A5. The composite nanoparticles are added to ethanol, stirred uniformly, and the modified titanium carbide nanosheet is added, stirred at 70℃ and 800r / min for 30min, heated to 85℃, and stirred until the ethanol evaporates to obtain an alloy reinforcing agent; the mass ratio of the composite nanoparticles, ethanol, and modified titanium carbide nanosheet is 2.3:110:3.5.

[0041] Example 3 A nickel-based alloy ultra-pure material, comprising the following mass parts of raw materials: nickel powder 50 parts, chromium powder 15 parts, molybdenum powder 10 parts, copper powder 5 parts, boron powder 5 parts, silicon powder 4 parts, alloy reinforcing agent 7 parts; A preparation method of a nickel-based alloy ultra-pure material, comprising the following preparation steps: S1. The nickel powder, chromium powder, molybdenum powder, copper powder, boron powder, silicon powder, and alloy reinforcing agent are mixed uniformly, ball milled, and passed through a 200-mesh screen to obtain a mixed powder; S2. Argon is introduced into a melting furnace to a vacuum degree of 0.8x10 5 Pa, after preheating at 200℃, the mixed powder is added, step-by-step melting is performed to form a mixed melt, the mixed melt is poured into a mold, and after demolding, a nickel-based alloy ultra-pure material is obtained.

[0042] In step S1, the ball milling is performed using a ball mill, the ball milling atmosphere is argon, the ball material is tungsten carbide with a diameter of 10mm, the ball material ratio is 10:1, the ball milling speed is 600r / min, and the ball milling time is 22h; In step S2, the step-by-step melting is specifically: holding at 1050℃ for 25min, holding at 1550℃ for 35min, and holding at 1850℃ for 15min.

[0043] The alloy reinforcing agent is specifically prepared by the following steps: A1. The nano-titanium diboride is added to ethanol and deionized water, stirred uniformly, KH570 is added, then 1mol / L hydrochloric acid is added to adjust the pH to 3.5, stirred at 70℃ for 2h, cooled to room temperature, filtered, washed with ethanol for 3 times, washed with deionized water for 3 times, dried in a 70℃ oven for 10min to obtain double-bonded nano-titanium diboride; the mass ratio of nano-titanium diboride, ethanol, deionized water, and KH570 is 3:130:60:1.5; A2. Carboxymethyl cellulose and deionized water were mixed and stirred until completely dissolved, and cellulase was added. After hydrolysis at 55℃ for 1h, the temperature was raised to 85℃, acetic acid was added to adjust the pH to 6, and ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double-bonded nano titanium diboride were added. After stirring at 85℃ for 1h, the mixture was cooled to room temperature and centrifuged at 10,000r / min to collect the precipitate. The precipitate was washed with deionized water three times and dried in an oven at 70℃ for 10min to obtain composite nanoparticles. The mass ratio of carboxymethyl cellulose, deionized water, cellulase, ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double-bonded nano titanium diboride was 7:95:0.03:0.3:0.2:8:4:3; A3. Titanium carbide nanosheets and tannic acid were added to deionized water and stirred at 70℃ for 10min. After filtration, the mixture was washed with deionized water three times and dried in an oven at 70℃ for 15min to obtain tannic acid-modified titanium carbide nanosheets. The mass ratio of titanium carbide nanosheets, tannic acid and deionized water was 3:1:90; A4. Zinc nitrate hexahydrate was added to deionized water and stirred until uniform. Ammonia water and tannic acid-modified titanium carbide nanosheets were added and stirred until uniform. The mixture was placed in a reaction kettle and stirred at 190℃ for 24h. After cooling to room temperature, the mixture was filtered and washed with deionized water five times. The mixture was dried in an oven at 60℃ for 20min to obtain modified titanium carbide nanosheets. The mass ratio of zinc nitrate hexahydrate, deionized water, ammonia water and tannic acid-modified titanium carbide nanosheets was 3:80:4:3.5; A5. The composite nanoparticles were added to ethanol and stirred until uniform. The modified titanium carbide nanosheets were added and stirred at 70℃ and 800r / min for 30min. The temperature was raised to 85℃ and the ethanol was allowed to evaporate. The alloy reinforcing agent was obtained. The mass ratio of composite nanoparticles, ethanol and modified titanium carbide nanosheets was 2.5:120:4.

[0044] Comparative Example 1 A nickel-based alloy ultra-pure material, comprising the following mass of raw materials: nickel powder 50 parts, chromium powder 15 parts, molybdenum powder 10 parts, copper powder 5 parts, boron powder 5 parts, silicon powder 4 parts, alloy reinforcing agent 7 parts; A preparation method of a nickel-based alloy ultra-pure material, comprising the following preparation steps: S1. The nickel powder, chromium powder, molybdenum powder, copper powder, boron powder, silicon powder and alloy reinforcing agent were mixed uniformly, ball milled and passed through a 200 mesh screen to obtain a mixed powder; S2. Argon was introduced into the smelting furnace to a vacuum degree of 0.8x10 5 Pa, and after preheating at 200℃, the mixed powder was added. The mixed melt was formed by stepwise smelting, and the mixed melt was poured into a mold. After demolding, the nickel-based alloy ultra-pure material was obtained.

[0045] In step S1, ball milling is carried out in a ball mill under argon atmosphere, the ball material is tungsten carbide with a diameter of 10 mm, the ball-to-material ratio is 10:1, the ball milling speed is 600 r / min, and the ball milling time is 22 h. In step S2, the step-by-step melting is specifically as follows: holding at 1050℃ for 25 min, holding at 1550℃ for 35 min, and holding at 1850℃ for 15 min.

[0046] The alloy enhancer is prepared by the following steps: A1. Mix carboxymethyl cellulose and deionized water, stir until completely dissolved, add cellulase, stir and hydrolyze at 55℃ for 1 h, then warm up to 85℃, add acetic acid to adjust pH to 6, add ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and nano titanium diboride, stir and react at 85℃ for 1 h, cool to room temperature, centrifuge at 10000 r / min to collect the precipitate, wash the precipitate with deionized water for 3 times, dry in a 70℃ oven for 10 min to obtain composite nanoparticles; the mass ratio of carboxymethyl cellulose, deionized water, cellulase, ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and nano titanium diboride is 7:95:0.03:0.3:0.2:8:4:3; A2. Add titanium carbide nanosheets and tannic acid to deionized water, stir at 70℃ for 10 min, filter, wash with deionized water for 3 times, dry in a 70℃ oven for 15 min to obtain tannic acid modified titanium carbide nanosheets; the mass ratio of titanium carbide nanosheets, tannic acid and deionized water is 3:1:90; A3. Add zinc nitrate hexahydrate to deionized water, stir uniformly, add ammonia water and tannic acid modified titanium carbide nanosheets, stir uniformly, place in a reaction kettle, stir at 190℃ for 24 h, cool to room temperature, filter, wash with deionized water for 5 times, dry in a 60℃ oven for 20 min to obtain modified titanium carbide nanosheets; the mass ratio of zinc nitrate hexahydrate, deionized water, ammonia water and tannic acid modified titanium carbide nanosheets is 3:80:4:3.5; A4. Add composite nanoparticles to ethanol, stir uniformly, add modified titanium carbide nanosheets, stir at 70℃ and 800 r / min for 30 min, warm up to 85℃, stir until ethanol evaporates to obtain an alloy enhancer; the mass ratio of composite nanoparticles, ethanol and modified titanium carbide nanosheets is 2.5:120:4.

[0047] Comparative Example 2 A nickel-based alloy ultra-pure material, comprising the following raw materials by mass: nickel powder 50 parts, chromium powder 15 parts, molybdenum powder 10 parts, copper powder 5 parts, boron powder 5 parts, silicon powder 4 parts, and alloy enhancer 7 parts; A preparation method of a nickel-based alloy ultra-pure material, comprising the following preparation steps: S1. The nickel powder, chromium powder, molybdenum powder, copper powder, boron powder, silicon powder and alloy enhancer are mixed uniformly, ball milled, and passed through a 200 mesh screen to obtain a mixed powder; S2. Argon is introduced into the smelting furnace to a vacuum degree of 0.8*10 5 Pa, after preheating at 200℃, the mixed powder is added, step smelting is performed to form a mixed melt, the mixed melt is poured into a mold, and after demolding, a nickel-based alloy ultra-pure material is obtained.

[0048] In step S1, the ball milling is performed using a ball mill, the ball milling atmosphere is argon, the ball material is tungsten carbide with a diameter of 10mm, the ball material ratio is 10:1, the ball milling speed is 600r / min, and the ball milling time is 22h. In step S2, the step smelting is specifically as follows: holding at 1050℃ for 25min, holding at 1550℃ for 35min, and holding at 1850℃ for 15min.

[0049] The alloy enhancer is specifically prepared by the following steps: A1. The nano-titanium diboride is added to ethanol and deionized water, stirred uniformly, and then KH570 is added. After adjusting the pH to 3.5 with 1mol / L hydrochloric acid, it is stirred and reacted at 70℃ for 2h, cooled to room temperature, filtered, washed with ethanol for 3 times, washed with deionized water for 3 times, and dried in a 70℃ oven for 10min to obtain double-bonded nano-titanium diboride. The mass ratio of nano-titanium diboride, ethanol, deionized water and KH570 is 3:130:60:1.5; A2. The titanium carbide nanosheet and tannic acid are added to deionized water, stirred at 70℃ for 10min, filtered, washed with deionized water for 3 times, and dried in a 70℃ oven for 15min to obtain tannic acid modified titanium carbide nanosheet. The mass ratio of titanium carbide nanosheet, tannic acid and deionized water is 3:1:90; A3. The zinc nitrate hexahydrate is added to deionized water, stirred uniformly, and then ammonia water and tannic acid modified titanium carbide nanosheet are added. After stirring uniformly, it is placed in a reaction kettle and stirred at 190℃ for 24h, cooled to room temperature, filtered, washed with deionized water for 5 times, and dried in a 60℃ oven for 20min to obtain modified titanium carbide nanosheet. The mass ratio of zinc nitrate hexahydrate, deionized water, ammonia water and tannic acid modified titanium carbide nanosheet is 3:80:4:3.5; A4. The double-bonded nano-titanium diboride is added to ethanol, stirred uniformly, and then the modified titanium carbide nanosheet is added. After stirring at 70℃ and 800r / min for 30min, the temperature is raised to 85℃ and stirring is performed until the ethanol evaporates to obtain the alloy enhancer. The mass ratio of double-bonded nano-titanium diboride, ethanol and modified titanium carbide nanosheet is 2.5:120:4.

[0050] Comparative Example 3 A kind of nickel-based alloy ultra-pure material, including the following mass parts raw materials: nickel powder 50 parts, chromium powder 15 parts, molybdenum powder 10 parts, copper powder 5 parts, boron powder 5 parts, silicon powder 4 parts, alloy reinforcing agent 7 parts; A preparation method of a nickel-based alloy ultra-pure material, comprising the following preparation steps: S1. Mix nickel powder, chromium powder, molybdenum powder, copper powder, boron powder, silicon powder and alloy reinforcing agent uniformly, ball mill, pass through 200 mesh screen, to obtain mixed powder; S2. Argon is introduced into the smelting furnace to a vacuum degree of 0.8 × 10 5 Pa, after preheating at 200 ℃, the mixed powder is added, and the mixed melt is formed by step-by-step smelting, the mixed melt is poured into a mold, and the nickel-based alloy ultra-pure material is obtained after demolding.

[0051] In step S1, the ball mill is used for ball milling, the ball milling atmosphere is argon, the ball material is tungsten carbide with a diameter of 10 mm, the ball material ratio is 10:1, the ball milling speed is 600 r / min, and the ball milling time is 22 h; In step S2, the step-by-step smelting is specifically: holding at 1050 ℃ for 25 min, holding at 1550 ℃ for 35 min, and holding at 1850 ℃ for 15 min.

[0052] The alloy reinforcing agent is specifically prepared by the following steps: A1. Nanometer titanium diboride is added to ethanol and deionized water, stirred uniformly, KH570 is added, then hydrochloric acid with a concentration of 1 mol / L is added to adjust the pH to 3.5, stirred at 70 ℃ for 2 h, cooled to room temperature, filtered, washed with ethanol for 3 times, washed with deionized water for 3 times, dried in a 70 ℃ oven for 10 min, to obtain double-bonded nanometer titanium diboride; the mass ratio of nanometer titanium diboride, ethanol, deionized water and KH570 is 3:130:60:1.5; A2. Carboxymethyl cellulose and deionized water are mixed and stirred until completely dissolved, cellulase is added, and after stirring and hydrolysis at 55 ℃ for 1 h, the temperature is raised to 85 ℃, acetic acid is added to adjust the pH to 6, ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double-bonded nanometer titanium diboride are added, and stirred at 85 ℃ for 1 h, cooled to room temperature, centrifuged at 10000 r / min to collect the precipitate, the precipitate is washed with deionized water for 3 times, and dried in a 70 ℃ oven for 10 min, to obtain composite nanoparticles; the mass ratio of carboxymethyl cellulose, deionized water, cellulase, ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double-bonded nanometer titanium diboride is 7:95:0.03:0.3:0.2:8:4:3; A3. Zinc nitrate hexahydrate was added to deionized water, stirred uniformly, ammonia water and titanium carbide nanosheets were added, stirred uniformly, placed in a reaction kettle, stirred at 190℃ for 24h, cooled to room temperature, filtered, washed with deionized water 5 times, dried in an oven at 60℃ for 20min, to obtain modified titanium carbide nanosheets; the mass ratio of zinc nitrate hexahydrate, deionized water, ammonia water and titanium carbide nanosheets is 3:80:4:3.5; A4. The composite nanoparticles were added to ethanol, stirred uniformly, and the modified titanium carbide nanosheets were added, stirred at 70℃, 800r / min for 30min, warmed to 85℃, and stirred until the ethanol evaporated, to obtain an alloy reinforcing agent; the mass ratio of composite nanoparticles, ethanol and modified titanium carbide nanosheets is 2.5:120:4.

[0053] Comparative Example 4 A nickel-based alloy ultra-pure material, comprising the following mass parts of raw materials: nickel powder 50 parts, chromium powder 15 parts, molybdenum powder 10 parts, copper powder 5 parts, boron powder 5 parts, silicon powder 4 parts, alloy reinforcing agent 7 parts; A preparation method of a nickel-based alloy ultra-pure material, comprising the following preparation steps: S1. The nickel powder, chromium powder, molybdenum powder, copper powder, boron powder, silicon powder and alloy reinforcing agent were mixed uniformly, ball milled, and passed through a 200 mesh screen to obtain a mixed powder; S2. Argon was introduced into a smelting furnace to a vacuum degree of 0.8x10 5 Pa, after preheating at 200℃, the mixed powder was added, and a mixed melt was formed by stepwise smelting, the mixed melt was poured into a mold, and after demolding, a nickel-based alloy ultra-pure material was obtained.

[0054] In step S1, the ball mill was used for ball milling, the ball milling atmosphere was argon, the ball material was tungsten carbide with a diameter of 10mm, the ball material ratio was 10:1, the ball milling speed was 600r / min, and the ball milling time was 22h; In step S2, the stepwise smelting was specifically: holding at 1050℃ for 25min, holding at 1550℃ for 35min, and holding at 1850℃ for 15min.

[0055] The alloy reinforcing agent was specifically prepared by the following steps: A1. The nano-titanium diboride was added to ethanol and deionized water, stirred uniformly, KH570 was added, then 1mol / L hydrochloric acid was added to adjust the pH to 3.5, stirred at 70℃ for 2h, cooled to room temperature, filtered, washed with ethanol 3 times, washed with deionized water 3 times, and dried in an oven at 70℃ for 10min to obtain double bond nano-titanium diboride; the mass ratio of nano-titanium diboride, ethanol, deionized water and KH570 is 3:130:60:1.5; A2. Carboxymethyl cellulose and deionized water were mixed and stirred until completely dissolved, and cellulase was added. After hydrolysis at 55℃ for 1h, the temperature was raised to 85℃, acetic acid was added to adjust the pH to 6, and ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double-bonded nano titanium diboride were added. After stirring at 85℃ for 1h, the mixture was cooled to room temperature and centrifuged at 10000r / min to collect the precipitate. The precipitate was washed with deionized water 3 times and dried in an oven at 70℃ for 10min to obtain the composite nanoparticles. The mass ratio of carboxymethyl cellulose, deionized water, cellulase, ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double-bonded nano titanium diboride was 7:95:0.03:0.3:0.2:8:4:3; A3. Titanium carbide nanosheets and tannic acid were added to deionized water and stirred at 70℃ for 10min. After filtration, the precipitate was washed with deionized water 3 times and dried in an oven at 70℃ for 15min to obtain tannic acid-modified titanium carbide nanosheets. The mass ratio of titanium carbide nanosheets, tannic acid and deionized water was 3:1:90. A4. The composite nanoparticles were added to ethanol and stirred until uniform. Tannic acid-modified titanium carbide nanosheets were added and stirred at 70℃ and 800r / min for 30min. The temperature was raised to 85℃ and the ethanol was evaporated to obtain the alloy reinforcing agent. The mass ratio of composite nanoparticles, ethanol and tannic acid-modified titanium carbide nanosheets was 2.5:120:4.

[0056] Comparative Example 5 A nickel-based alloy ultra-pure material, comprising the following mass of raw materials: nickel powder 50 parts, chromium powder 15 parts, molybdenum powder 10 parts, copper powder 5 parts, boron powder 5 parts, silicon powder 4 parts, alloy reinforcing agent 7 parts; A preparation method of a nickel-based alloy ultra-pure material, comprising the following preparation steps: S1. The nickel powder, chromium powder, molybdenum powder, copper powder, boron powder, silicon powder and alloy reinforcing agent were mixed uniformly, ball milled, and passed through a 200 mesh screen to obtain a mixed powder; S2. Argon was introduced into the smelting furnace to a vacuum degree of 0.8×10 5 Pa, after preheating at 200℃, the mixed powder was added, and the mixed melt was formed by stepwise smelting. The mixed melt was poured into a mold, demolded, and a nickel-based alloy ultra-pure material was obtained.

[0057] In step S1, the ball mill was used for ball milling, the ball milling atmosphere was argon, the ball material was tungsten carbide with a diameter of 10mm, the ball material ratio was 10:1, the ball milling speed was 600r / min, and the ball milling time was 22h; In step S2, the stepwise smelting was as follows: holding at 1050℃ for 25min, holding at 1550℃ for 35min, and holding at 1850℃ for 15min.

[0058] The alloy enhancer is prepared by the following steps: A1. Add nano-titanium diboride into ethanol and deionized water, stir until uniform, add KH570, then add hydrochloric acid with a concentration of 1 mol / L to adjust the pH to 3.5, stir and react at 70°C for 2 hours, cool to room temperature, filter, wash with ethanol for 3 times, wash with deionized water for 3 times, dry in an oven at 70°C for 10 minutes, to obtain double-bonded nano-titanium diboride; the mass ratio of nano-titanium diboride, ethanol, deionized water and KH570 is 3:130:60:1.5; A2. Mix carboxymethyl cellulose and deionized water, stir until completely dissolved, add cellulase, hydrolyze at 55°C for 1 hour, then warm up to 85°C, add acetic acid to adjust the pH to 6, add ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double-bonded nano-titanium diboride, stir and react at 85°C for 1 hour, cool to room temperature, centrifuge at 10,000 r / min to collect the precipitate, wash the precipitate with deionized water for 3 times, dry in an oven at 70°C for 10 minutes, to obtain composite nanoparticles; the mass ratio of carboxymethyl cellulose, deionized water, cellulase, ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double-bonded nano-titanium diboride is 7:95:0.03:0.3:0.2:8:4:3; A3. Add titanium carbide nanosheets and tannic acid into deionized water, stir at 70°C for 10 minutes, filter, wash with deionized water for 3 times, dry in an oven at 70°C for 15 minutes, to obtain tannic acid modified titanium carbide nanosheets; the mass ratio of titanium carbide nanosheets, tannic acid and deionized water is 3:1:90; A4. Add zinc nitrate hexahydrate into deionized water, stir until uniform, add ammonia water and tannic acid modified titanium carbide nanosheets, stir until uniform, place in a reaction kettle, stir and react at 190°C for 24 hours, cool to room temperature, filter, wash with deionized water for 5 times, dry in an oven at 60°C for 20 minutes, to obtain modified titanium carbide nanosheets; the mass ratio of zinc nitrate hexahydrate, deionized water, ammonia water and tannic acid modified titanium carbide nanosheets is 3:80:4:3.5; A5. Mix the composite nanoparticles and the modified titanium carbide nanosheets, to obtain an alloy enhancer; the mass ratio of the composite nanoparticles and the modified titanium carbide nanosheets is 2.5:4.

[0059] The nickel-based alloy ultra-pure materials prepared in Examples 1-3 and Comparative Examples 1-5 are subjected to performance detection.

[0060] The density balance (XS105) is used to test the density (%) of the IN718 high-temperature alloy formed by SLM.

[0061] The tensile properties of the nickel-based alloy were tested by a thermal mechanical fatigue testing system / tensile testing machine (MTS 370.10 landmark).

[0062] Average grain size test: The average grain size of the hard tungsten-based alloy material prepared above was tested according to the standard GB / T3488.2-2018, ISO4499-2:2008.

[0063] As shown in Table 1 below.

[0064] Table 1 Performance test of nickel-based alloy ultra-pure materials prepared in Examples 1-3 and Comparative Examples 1-5 As can be seen from the data in Table 1, the nickel-based alloy ultra-pure materials prepared in Examples 1-3 have higher mechanical strength and smaller grain size.

[0065] In Comparative Example 1, the alloy reinforcing agent prepared by replacing the double-bonded nanometer titanium diboride with nanometer titanium diboride is added to the nickel-based alloy ultra-pure material, and the alloy performance decreases, proving that the double-bonded modified nanometer titanium diboride can copolymerize with methyl methacrylate and acrylic acid, increase the crosslinking density of the composite nanoparticles, and is beneficial to the formation of a carbon network structure with high crosslinking degree, filling the gaps in the alloy material and improving the density and mechanical properties of the alloy material.

[0066] In Comparative Example 2, the alloy reinforcing agent prepared by replacing the composite nanoparticles with double-bonded nanometer titanium diboride is added to the nickel-based alloy ultra-pure material, and the alloy performance decreases, proving that in the preparation of the nickel-based alloy material, the crosslinked network structure of the composite nanoparticles decomposes under heat to form a crosslinked carbon network structure, which can absorb and weaken the external gravitational force, thereby improving the mechanical properties of the alloy material. In addition, the crosslinked carbon network structure can be riveted at the interface of the nickel-based alloy material, further inhibiting the grain growth of the nickel-based alloy material, refining the alloy material grains, and improving the mechanical properties of the alloy material. Furthermore, the formed carbon network structure can form a carbide reinforcing phase with the silicon element contained in the alloy powder and double-bonded silane, filling the gaps in the alloy material and improving the density and mechanical properties of the alloy material.

[0067] In Comparative Example 3, the alloy reinforcing agent prepared by replacing the tannin-modified titanium carbide nanosheet with titanium carbide nanosheet is added to the nickel-based alloy ultra-pure material, and the alloy performance decreases, proving that the tannin adheres to the surface of the titanium carbide nanosheet, making the surface of the titanium carbide nanosheet carry a large number of phenolic hydroxyl groups. This is beneficial to the synthesis of uniformly distributed four-needle-shaped zinc oxide whiskers on the surface of the titanium carbide nanosheet, which forms a mechanical interlock with the alloy material, improves the density of the alloy, and further improves the strength of the alloy material.

[0068] The alloy performance of the nickel-based alloy ultra-pure material added with the alloy enhancer prepared by replacing the modified titanium carbide nanosheet with the tannic acid modified titanium carbide nanosheet in Comparative Example 4 is decreased, which proves that the four-needle-shaped zinc oxide whiskers synthesized on the surface of the titanium carbide nanosheet have a unique four-dimensional space structure, the core of which extends out four needle-shaped crystals in the radial direction, which can form mechanical interlocking with the alloy material to improve the density of the alloy, and further improve the strength of the alloy material.

[0069] The alloy performance of the nickel-based alloy ultra-pure material added with the alloy enhancer prepared by the composite nanoparticles not being loaded on the surface of the modified titanium carbide nanosheet in Comparative Example 5 is decreased, which proves that the composite nanoparticles penetrate into the gap between the whiskers on the surface of the modified titanium carbide nanosheet, avoid the gap between the whiskers being too large, form cracks in the alloy material, and affect the mechanical properties of the alloy material, and the surface of the composite nanoparticles contains a large number of carboxyl functional groups, which are coated on the surface of the modified titanium carbide nanosheet, endow the modified titanium carbide nanosheet with oxygen-containing functional groups, make the modified titanium carbide nanosheet tightly combined with the alloy powder, and be beneficial to forming a dense and uniform alloy material and improving the mechanical properties of the alloy material.

[0070] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0071] The above is only an example and description of the present application, and those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace, as long as they do not deviate from the invention or exceed the scope defined by the present claims, which shall be within the protection scope of the present application.

Claims

1. A nickel-base alloy ultrapure material, characterized by, The alloy enhancer is prepared by synthesizing four needle-shaped zinc oxide whiskers on the surface of titanium carbide nanosheets, and then mixing with composite nanoparticles. The alloy enhancer is prepared by synthesizing four needle-shaped zinc oxide whiskers on the surface of titanium carbide nanosheets, and then mixing with composite nanoparticles. The composite nanoparticles are prepared by modifying nanometer titanium diboride with double bond silane, and then mixing with methyl methacrylate, acrylic acid and carboxymethyl cellulose.

2. The ultra-pure nickel-based alloy material of claim 1, wherein, The alloy enhancer is prepared by synthesizing four needle-shaped zinc oxide whiskers on the surface of titanium carbide nanosheets, and then mixing with composite nanoparticles. A1. Nanometer titanium diboride is added to ethanol and deionized water, stirred uniformly, double bond silane is added, hydrochloric acid is added to adjust pH, stirred and reacted, cooled to room temperature, filtered, washed and dried to obtain double bond nanometer titanium diboride; A2. Carboxymethyl cellulose and deionized water are mixed and stirred until completely dissolved, cellulase is added, hydrolyzed after stirring, heated to 85℃, acetic acid is added to adjust pH, ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double bond nanometer titanium diboride are added, stirred and reacted, cooled to room temperature, centrifuged to collect the precipitate, the precipitate is washed and dried to obtain composite nanoparticles; A3. Titanium carbide nanosheets and tannic acid are added to deionized water, stirred uniformly, filtered, washed and dried to obtain tannic acid modified titanium carbide nanosheets; A4. Zinc nitrate hexahydrate is added to deionized water, stirred uniformly, ammonia water and tannic acid modified titanium carbide nanosheets are added, stirred uniformly, placed in a reaction kettle, stirred at 180-190℃ for 22-24h, cooled to room temperature, filtered, washed and dried to obtain modified titanium carbide nanosheets; A5. The composite nanoparticles are added to ethanol, stirred uniformly, modified titanium carbide nanosheets are added, stirred and mixed, heated and stirred until ethanol evaporates to obtain the alloy enhancer.

3. The ultra-pure nickel-based alloy material of claim 2, wherein, In step A1, the mass ratio of nanometer titanium diboride, ethanol, deionized water and double bond silane is (2-3):(110-130):(50-60):(1-1.5).

4. The ultra-pure nickel-based alloy material of claim 2, wherein, In step A2, the mass ratio of carboxymethyl cellulose, deionized water, cellulase, ferrous sulfate, hydrogen peroxide, methyl methacrylate, acrylic acid and double bond nanometer titanium diboride is (6-7):(85-95):(0.01-0.03):(0.1-0.3):(0.1-0.2):(6-8):(2-4):(1-3).

5. The ultra-pure nickel-based alloy material of claim 2, wherein, In step A3, the mass ratio of titanium carbide nanosheets, tannic acid and deionized water is (2.5-3):(0.5-1):(80-90).

6. The ultra-pure nickel-based alloy material of claim 2, wherein, In step A4, the mass ratio of zinc nitrate hexahydrate, deionized water, ammonia water and tannic acid modified titanium carbide nanosheets is (2-3):(70-80):(3-4):(3-3.5).

7. The ultra-pure nickel-based alloy material of claim 2, wherein, In step A5, the mass ratio of composite nanoparticles, ethanol and modified titanium carbide nanosheets is (2-2.5):(100-120):(3-4).

8. The ultra-pure nickel-based alloy material of claim 2, wherein, The particle size of the nanometer titanium diboride is 20-70nm.

9. The ultra-pure nickel-base alloy material of claim 2 wherein, The titanium carbide nanosheet has a sheet diameter of 8-15 μm and a thickness of 100-200 nm.

10. A method of producing a nickel-based alloy ultrapurity material as claimed in any one of claims 1 to 9, characterized in that, The preparation steps include the following steps: S1. uniformly mixing nickel powder, chromium powder, molybdenum powder, copper powder, boron powder, silicon powder and alloy reinforcing agent, ball milling, sieving to obtain mixed powder; S2. after adjusting the vacuum degree by introducing argon into a smelting furnace, preheating, adding the mixed powder, forming a mixed melt by step-by-step smelting, pouring the mixed melt into a mold, demolding to obtain a nickel-based alloy ultra-pure material.

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