59 results about "Mo element" patented technology

The invention discloses a high-entropy oxide composite negative electrode material as well as a preparation method and application thereof, and relates to the technical field of all-solid-state lithium battery negative electrode materials, and the high-entropy oxide composite negative electrode material comprises a metal element and an oxygen element, the high-entropy oxide composite negative electrode material comprises a metal element and an oxygen element, wherein the metal elements are at least five of a chromium element, an iron element, a nickel element, a manganese element, a molybdenum element, a copper element and a cerium element; the molar ratio of the metal element to the oxygen element is 3: 4; the high-entropy oxide composite negative electrode material is of a spinel structure. According to the prepared high-entropy oxide composite negative electrode material, the problems that a traditional negative electrode material is unstable in structure, poor in interface contact and short in cycle life are solved, the electrochemical performance is improved, and an all-solid-state lithium battery prepared from the high-entropy oxide composite negative electrode material shows high reversible specific capacity and excellent cycle stability.

Provided herein are low resistance metallization stack structures for 3D-NAND applications and related methods of fabrication. In some embodiments, thin metal oxynitride nucleation layers are deposited on dielectric material followed by deposition of a pure metal conductor using process conditions that increase non-molybdenum component element content at the oxynitride-dielectric interface. Certain embodiments of the methods described below convert less than all of the metal oxynitride nucleation layer to a pure metal layer, further lowering the resistivity.

The invention provides a secondary battery and an electric device. The secondary battery comprises a pole piece, the pole piece comprises a current collector, the current collector comprises an iron element and a molybdenum element, and based on the mass of the current collector, the mass content of the molybdenum element is 0.1%-20%, and the mass content of the iron element is 50%-99%.

This utility model discloses a large-diameter pipe fitting for hydrogen transportation pipelines based on a composite plate, comprising: a tee structure, wherein the tee structure has an internal support structure in contact with each other; this utility model relates to the technical field of large-diameter pipe fittings. The tee structure and support structure are designed with an inner tube made of S31703 stainless steel and an outer tube made of Q345R alloy structural steel. The inner tube, with its high chromium, nickel, and molybdenum elements forming an anti-corrosion barrier, can directly contact the hydrogen medium. The outer tube, as a low-alloy high-strength steel, has both excellent plasticity and structural strength, which can meet the processing requirements of large-diameter pipe fittings such as rolling and stamping. Through the cooperation of the rotating shaft and the support rod, a cross structure is formed by rotating around it. The cooperation of the sliding groove, the sliding plate, and the support threaded rod, combined with the threaded transmission of the throttle handle, can precisely adjust the extension and retraction of the top block, so that it tightly presses against the inner wall of the inner tube, thus playing a supporting role.

The application relates to a feed for metal injection molding, a preparation method of the feed and a metal product, wherein the preparation method of the feed comprises the following steps: S1, obtaining the following components according to weight parts: 40-50 parts of Fe elements, 2-8 parts of Ni elements, 20-25 parts of Cr elements, 20-25 parts of Co elements, 2-8 parts of Mo elements, 2-8 parts of Cu elements, 0.1-3 parts of Si elements, 1-3 parts of Mn elements, mixing and then heating to melt the material, and then adopting a high-pressure water-gas combined atomization method to obtain mixed powder; S2, obtaining a forming agent; S3, preheating the mixed powder obtained in S1 under vacuum conditions, then adding the forming agent into the mixed powder for mixing, and then performing plasticizing extrusion granulation to prepare the feed. The feed can meet the size precision requirements of MIM injection, green compact degreasing sintering and related post-process machining, the existing MIM materials on the market cannot simultaneously meet the problem of high polishable hardness, and the obtained metal product has the comprehensive advantages of appearance and hardness.

The invention relates to the technical field of metal additive manufacturing, in particular to a titanium-based composite coating for laser additive remanufacturing and a preparation method and application thereof. The method comprises the following steps: adhering tungsten carbide and nano metal Mo powder by adopting an acoustic resonance technology; the composite coating structure is prepared in a laser directional energy deposition and cold spraying mode; and stress is eliminated through heat treatment. Composite powder with Mo adhered to the surface of tungsten carbide is added into TC4 titanium alloy, and then the titanium alloy composite coating is prepared through the laser directional energy deposition and cold spraying technology. Wherein the adhesion of Mo can effectively promote the transformation of beta phase on one hand, and on the other hand, Mo can be used as a barrier to firstly contact a matrix to reduce the generation of brittle phase and improve the strength and wear resistance of the coating. And through heat treatment, stress concentration of the coating is reduced, the diffusion effect of the Mo element is improved, surface lubrication and abrasion reduction are achieved, and the mechanical property of the titanium alloy composite coating is improved.

The invention relates to the field of metal materials and manufacturing thereof, in particular to a seamless steel tube for a high-strength and high-toughness petroleum casing and a manufacturing method thereof.The seamless steel tube comprises, by weight, 0.20%-0.30% of C, 0.25%-0.30% of Si, 1.60%-2.40% of Mn, smaller than or equal to 0.010% of P, smaller than or equal to 0.002% of S, 0.020%-0.060% of Al, 0.06%-0.15% of Nb, 0.020%-0.040% of Ti, 0.04%-0.10% of V, 0.0020%-0.0040% of B, smaller than or equal to 0.0060% of N, 0.001%-0.005% of Ca, 0.20%-0.60% of Cr and the balance Fe and inevitable impurities, the Ti / N ratio is 2-8, the yield strength of the seamless the yield ratio is 0.85-0.92, the microscopic structure is fine tempered sorbite, the longitudinal impact energy of a Charpy V-shaped notch at the temperature of 0 DEG C is larger than or equal to 90 J, and the transverse impact energy of the Charpy V-shaped notch at the temperature of 0 DEG C is larger than or equal to 70 J. The process of high Nb microalloying, precise controlled rolling and controlled cooling and stepped tempering is adopted, Nb serves as the core, the synergistic effect of Ti, V and B elements is optimized, the strict performance requirement of the seamless pipe is met while no Mo element is added, and unified production of the 110-150 ksi-grade high-strength and high-toughness seamless steel pipe is achieved.

The invention discloses a high-strength wind power main shaft bearing and a processing method thereof, and the method comprises the following steps: S1, raw material preparation: a, blank selection: selecting high-strength alloy structural steel containing Cr, Ni and Mo elements as a bearing blank, wherein the content of the Cr element is 1.5%-2.0%, the content of the Ni element is 0.8%-1.2%, and the content of the Mo element is 0.2%-0.5%; high-strength alloy structural steel containing Cr, Ni and Mo is selected as a blank, the Cr element is used for improving abrasion resistance and hardenability, the Ni element is used for enhancing toughness and fatigue resistance, the Mo element is used for improving high-temperature strength and tempering-resistant stability, the performance bottleneck of a traditional material is broken through from the raw material level, meanwhile, through homogenizing annealing in the blank pretreatment stage, the hardness of the blank is improved, and the hardness of the blank is improved. The structure segregation in the blank is effectively eliminated, the uniformity of material components and structures is guaranteed, a stable material foundation is laid for subsequent machining procedures, and local stress concentration and early failure caused by uneven materials are avoided.

The invention relates to the technical field of amorphous alloy, in particular to a Fe-based amorphous alloy strip and a preparation method and application thereof, and the Fe-based amorphous alloy strip comprises the following elements of, by atomic percent, 75%-85% of Fe, 0.5%-4% of Si, 5%-12% of B, 0.1%-4% of P, 0.1%-4% of C, 0.5%-6% of Mo and 0.5%-5% of Ni. The sum of the atomic percentage contents of Fe, Si, B, P, C, Mo and Ni is 100%. According to the invention, the molybdenum element and the nickel element are introduced, so that the Fe-based amorphous alloy strip has high saturation magnetization, and meanwhile, the wear resistance and the toughness are remarkably improved.

Embodiments of the present application provide a martensitic steel and a preparation method therefor, a structural member, and a terminal device. The martensitic steel provided in the embodiments of the present application comprises the Ni element, the Co element, the Mo element, the Nb element, the C element, the Fe element and other trace elements; on the basis of the total mass of the martensitic steel, the mass fraction of the Ni element is 14%-16%, the mass fraction of the Co element is 16%-18%, the mass fraction of the Mo element is 7%-10%, the mass fraction of the Nb element is 0.1%-0.6%, and the mass fraction of the C element is 0.003%-0.1%. On the basis of the element selection of the martensitic steel and the design of the content of each element, the martensitic steel can be prepared by means of a powder molding process such as metal injection molding, and the martensitic steel prepared by means of the described process can have high strength, good toughness, and a preset shape.

The present application belongs to the technical field of electrolytic copper foil manufacturing, and particularly relates to a HVLP copper foil with low surface roughness and a preparation method thereof. The preparation method comprises the following steps: electrolytic foil growth, vacuum annealing treatment, electrochemical grain boundary pinning treatment, surface treatment and drying and slitting. The vacuum annealing treatment is performed after the electrolytic foil growth and before the surface treatment, so as to eliminate the residual stress in the copper foil; the electrochemical grain boundary pinning treatment adopts a silicon tungstate or phosphomolybdate electrolyte, and introduces tungsten or molybdenum elements at the grain boundary of the copper foil to form a pinning layer; in the surface treatment, the roughening treatment adopts pulse current and adds grain nano-refining additives, the solidification treatment is performed in a solidification liquid containing a rare earth salt, and the silane coupling agent treatment adopts a complex treatment liquid of KH-560 and a long-chain alkyl silane coupling agent. The obtained HVLP copper foil has a roughness Rz of the rough surface of less than or equal to 0.8 microns, high initial peel strength, a peel strength retention rate of more than 80% after hygrothermal aging, and good long-term service stability.

The application discloses a kind of co-high-entropy carbide cermet materials and preparation method and application thereof, belong to the field of cermet material.The co-high-entropy carbide cermet material provided by the application is with (WVMoTaTi) C ceramic as matrix, directly adding its corresponding metal elements (W element, V element, Mo element, Ta element, Ti element) as binder phase by discharge plasma coupling high-frequency induction sintering.The preparation method is to mix all raw materials in proportion first, then ball mill, dry to obtain mixed powder, and discharge plasma coupling high-frequency induction sintering is used.The application provides a kind of co-high-entropy carbide cermet material with high-entropy carbide solid solution and high-entropy alloy coexisting, which has excellent comprehensive mechanical properties, high precision and high-speed cutting ability, and shows irreplaceable importance in tool material, precision machining and other fields.

The invention discloses an AlCrSiWN / Mo nano-composite coating with high hardness and high wear resistance and a preparation process of the AlCrSiWN / Mo nano-composite coating, and belongs to the technical field of coatings. The nano-composite coating is formed by doping Mo element in an AlCrSiWN high-hardness coating by adopting an arc ion plating technology, and the thickness of the nano-composite coating is 3-4 microns. The preparation process of the coating comprises the steps that an AlCrN transition layer of a columnar crystal structure is prepared firstly, then an AlCrSiW target and a CrMo target are started at the same time, the AlCrSiWN / Mo nano-composite coating with the high hardness and the self-lubricating performance is obtained by regulating and controlling the evaporation current of the CrMo target to be 122-150 A and utilizing the synergistic effect of the self-lubricating characteristic of the Mo element and the high hardness characteristic of the AlCrSiWN coating, and the self-lubricating performance of the AlCrSiWN / Mo nano-composite coating is improved while the high hardness of the coating is kept. The toughness and the self-lubricating performance of the coating are improved, and the friction coefficient is reduced while crack propagation is inhibited.

According to the yttrium-containing heat-resistant steel, by adding the rare earth yttrium element, the grain boundary binding force can be improved, the grain boundary strength and plasticity can be improved, the microstructure of steel can be remarkably refined, growth of thermal fatigue cracks can be inhibited, and therefore the steel can obtain better thermal ductility. And in addition, a proper amount of Mn and N elements are added to replace the Ni element, a proper amount of Zr / Nb / V elements are added to replace part of Mo element, the cost is jointly reduced, meanwhile, composite precipitation of (Zr / Nb / V / Mo) C / N is achieved, grains are further refined, the strength is improved, and therefore the steel has more excellent high-temperature performance.

The invention discloses an electrocatalytic composite material based on cobalt monatomic regulation and control of molybdenum carbide phase change as well as a preparation method and application of the electrocatalytic composite material, and relates to the technical field of electrocatalytic hydrogen production. The preparation method comprises the following steps: dispersing a cobalt source, a molybdenum source and a surfactant in water, and adjusting to acidity to obtain a reaction solution; placing a substrate in the reaction solution, and reacting at 150-250 DEG C for 4-8 hours to obtain a precursor; placing the precursor and a carbon source in an inert atmosphere, raising the temperature to 800-1000 DEG C at 3-7 DEG C / min, and keeping the temperature for 1-3 hours to obtain an electro-catalytic composite material; in the reaction solution, the molar ratio of the molybdenum element to the cobalt element is 1: (0.01-0.33); the molar ratio of the molybdenum element to the carbon source in the reaction solution is 1: (0.01-0.03). A hydrothermal synthesis and high-temperature carbonization method is adopted, a carbide phase structure is precisely regulated and controlled through cobalt monatomic, and optimization of an electronic structure and catalytic performance is achieved, so that application of electrolyzed water in a full pH range is achieved.

The invention discloses a rhenium-free nickel-based single-crystal high-temperature alloy and a preparation method thereof, and relates to the technical field of high-temperature alloys. According to the high-temperature alloy provided by the invention, by finely regulating and controlling the proportion of strengthening elements such as Al, Ti, Ta and W and synergistically exerting the auxiliary effects of elements such as Cr, Co, C and Hf, after an expensive rhenium (Re) element and a molybdenum (Mo) element which is easy to promote generation of a harmful phase are thoroughly abandoned, collaborative optimization of high strength, high structure stability, excellent oxidation resistance and good casting performance is successfully realized. The rhenium-free nickel-based single crystal superalloy provided by the invention has high performance, high stability, excellent oxidation resistance and hot corrosion resistance and good castability, and provides an ideal material solution for low-cost and high-reliability manufacturing of high-temperature parts of heavy duty gas turbines.

This invention discloses a doped magnesium vanadate cathode material, its preparation method, and its application, belonging to the field of magnesium battery technology. The preparation of the doped magnesium vanadate cathode material includes: reacting a mixed solution of vanadium source solution, molybdenum source solution, and magnesium source solution to obtain a cathode material precursor; and calcining the cathode material precursor. This method can precisely target the doping of Mo element in magnesium vanadate. Single doping of Mo introduces strong Mo-O bonds, effectively stabilizing the structure and suppressing the spinel-to-rock salt phase transition. Furthermore, O2p-Mo4d orbital hybridization improves electronic conductivity and rate performance, effectively overcoming the difficulty of simultaneously achieving structural stability and ion-electron dynamics in spinel cathode materials for magnesium batteries. The obtained doped magnesium vanadate cathode material is a spinel system, and the magnesium metal battery further prepared from it is the first discovered spinel-based magnesium metal battery capable of cycling at room temperature.

The invention relates to the field of materials, and discloses a high-performance FeCoNiCrMo high-entropy alloy coating for a continuous casting and rolling production line roller and a preparation method and application thereof.The coating comprises a sigma phase and FCC phase eutectic structure, the eutectic structure comprises Fe, Co, Ni, Cr and Mo elements, based on the total amount of the coating, the content of the sigma phase is 40-60 wt.%, the content of the FCC phase is 40-60 wt.%, and the sum of the content of the sigma phase and the content of the FCC phase does not exceed 100 wt.%; the microstructure of the coating is an eutectic structure composed of the sigma phase and the FCC phase, the sigma phase serves as a hard phase, the FCC phase serves as a toughening phase, and the coating has the optimal balance of hardness and plasticity through the synergistic effect of the sigma phase and the FCC phase.

The invention relates to the technical field of corrosion-resistant coatings, in particular to a corrosion-resistant metal material coating and a preparation method and application thereof.The preparation method comprises the following steps that a cold spraying technology is adopted, modified iron-based alloy powder is sprayed to the surface of a polished matrix, and a prefabricated iron-based alloy coating is obtained through reciprocating operation; and an induction remelting process is used for remelting the prefabricated iron-based alloy coating, plane heating is adopted for induction remelting, and the corrosion-resistant metal material coating is obtained after heating. The hydrotalcite-like compound is modified, the dispersity of the hydrotalcite-like compound after modification and the compatibility with an iron-based matrix are greatly improved, internal gaps of a coating can be evenly filled, permeation channels of a corrosive medium (chloride ions) are reduced, molybdenum elements in modified molybdate can form a compact passive film on the surface of the coating, the oxidation reaction of a metal matrix is hindered, and the corrosion resistance of the metal matrix is improved. A dual-protection system is constructed through the synergistic effect of the two components, and after the modified iron-based alloy powder is modified by a modifier, the fluidity and the spraying performance of the modified iron-based alloy powder are improved.

The present application relates to a kind of NiFeMo-based spherical porous composite catalytic material and its preparation method and application, belong to electrocatalytic material technical field.The present application is aimed at solving the problems of complex preparation process of existing material, powder is easy to agglomerate, insufficient controllability of morphology and limited continuous preparation capacity.A kind of NiFeMo-based spherical porous composite catalytic material is provided, it is the composite powder containing Ni, Fe, Mo element, presents monodisperse spherical particle, with multi-level porous structure, Ni, Fe, Mo molar ratio is 10:10:(0.5~2);It is prepared by ultrasonic spray pyrolysis one-step method.The electrochemical active surface area of the material of the present application reaches 0.6303 cm 2 , higher than NiFeV (0.3360 cm 2 ) And NiMo (0.1485 cm 2 ) ; Hydrogen evolution driving potential is smaller, charge transfer resistance is lower, and it is suitable for alkaline electrolytic water cathode hydrogen evolution catalyst.

This invention provides a method for preparing nickel-based alloy powder and its application, relating to the field of hydrogen evolution reaction (HER) material preparation technology. The method includes the following steps: S1. Melting a metal raw material under vacuum conditions with an inert gas introduced, followed by a first heating at 1450–1700°C to obtain an alloy liquid, and then further heating to 1500–1800°C for a second heating to obtain a superheated melt; S2. Forming the superheated melt into a stable liquid flow, atomizing, breaking it up, and solidifying it to obtain the nickel-based alloy powder. In the nickel-molybdenum alloy powder prepared by this invention, molybdenum atoms are dissolved in a face-centered cubic (FCC) nickel matrix lattice in a substitutional form, forming a thermodynamically stable solid solution structure. This significantly enhances the chemical stability of the material in a strongly alkaline electrolysis environment and effectively inhibits the dissolution of molybdenum, thereby avoiding the hydrogen evolution reaction (HER) activity decay problem caused by molybdenum loss in traditional mechanically mixed Ni-Mo catalysts. It can maintain excellent and stable catalytic performance under long-term operation at high current densities.

The invention discloses a laser cladding preparation method of a wear-resistant and corrosion-resistant refractory high-entropy alloy coating on the surface of a Ti6Al4V matrix, which comprises the steps of powder pretreatment, compact preset layer preparation and laser cladding: selecting high-purity Zr, Hf, Nb, Ta and Mo powder, proportioning according to a chemical formula (ZrHfNbTa) Mox, screening, cleaning, ball-milling and mixing to obtain uniformly mixed powder; the mixed powder is preset on the surface of a Ti6Al4V matrix through a binder, and a compact preset layer is prepared; and an optimized laser cladding process is adopted for cladding the preset layer, and the Ti-Zr-Hf-Nb-Ta-Mo refractory high-entropy alloy coating containing Mo is synthesized in situ. According to the method, the content of the Mo element is precisely regulated and controlled, a BCC + HCP double-solid-solution lamellar structure and interface twin crystals are formed through induction, the synergistic effect of lattice distortion strengthening, solid solution strengthening and fine grain strengthening is achieved, the microhardness of the coating is larger than or equal to 650 HV and is improved by 85% or above compared with a base body, and the wear-resisting and corrosion-resisting performance is synergistic and excellent.

This invention relates to the field of material strengthening technology, providing a surface composite strengthening coating and its preparation process. The invention involves ultrasonic CNC unmanned contact cleaning and polishing of the workpiece surface, followed by high-energy particle bombardment in a vacuum chamber to penetrate W and Mo elements into the workpiece matrix and reconstruct metallic bonds, achieving matrix strengthening. Subsequently, a micro-cladding bonding process is completed using an electron beam gun, and finally, a PECVD process is employed to deposit the coating. This invention, through the combination of matrix strengthening and surface coating, effectively improves the strength of the workpiece matrix and the adhesion of the coating, blocks the impact of broaching heat on the workpiece, significantly improves the workpiece's wear resistance and impact resistance, extends its service life, reduces the frequency of workpiece replacement and production costs, and is suitable for the processing needs of aircraft motion mechanisms and aero-engine parts.

The application discloses a high-strength and high-toughness cast nickel-based alloy, which comprises the following components in percentage by weight: C 0.008-0.02%, Si <=0.8%, Mn <=1.0%, P <=0.025%, S <=0.02%, Cr 20.0-22.5%, Mo 12.5-14.5%, Fe 2.0-6.0%, V <=0.35%, W 2.5-3.5%, Nb 0.02-0.05%, Te 0.05-0.3%, and the balance of Ni and inevitable impurities; in the preparation process of the cast nickel-based alloy, Fe and Te are added in the form of Fe-Te intermediate alloy. The Cr and Mo element contents are controlled, Fe, W and Te elements are added at the same time, the three elements are coupled, the castings are refined, and the structure is homogenized, so that the problems of coarse grains in the sand mold castings in the casting process, many inclusion defects under the condition of no protection, low strength of the castings, poor corrosion resistance and toughness are fundamentally solved, the cast product yield is improved, and the production cost is greatly reduced.

The invention relates to an iron-based alloy superconducting baseband and a preparation method, and belongs to the technical field of material preparation. The superconducting baseband comprises the following chemical components in percentage by mass: less than or equal to 0.029% of C, less than or equal to 0.96% of Si, 0.1%-1.9% of Mn, less than or equal to 0.018% of P, less than or equal to 0.013% of S, 12.3%-18.5% of Cr, 9.3%-14.5% of Ni, 0.9%-2.8% of Mo, 0.0001%-0.0025% of B and a matrix element Fe. The high-performance iron-based alloy superconducting base band is successfully developed by adopting the collaborative component design of ultralow C content, high Cr and Ni addition and Mo element microalloying, accurately regulating and controlling the Nieq / Creq ratio and the C content and combining accurate preparation process control. After the base band is subjected to high-temperature heat treatment required by deposition of a superconducting layer at 700-900 DEG C, the ultra-high yield strength of 1200 MPa or above can still be kept at the liquid nitrogen temperature of 77 K, so that the base band has wide application prospects in the fields of superconducting cables, magnetic suspension guide rails, nuclear fusion devices, medical equipment and the like.

The application provides a target material, a target material manufacturing method and a display panel. The target material comprises a solid solution and a strengthening phase. The solid solution comprises a molybdenum element, and the atomic percentage of the molybdenum element is greater than or equal to 50%. The strengthening phase comprises a strengthening metal and a carbon element. The strengthening metal comprises a titanium element and a zirconium element. The titanium element and the carbon element form a titanium-carbon strengthening phase, and the zirconium element and the carbon element form a zirconium-carbon strengthening phase. The technical scheme of the application can improve the firmness of the copper signal transmission layer, thereby reducing the falling of the copper signal transmission layer.

The invention provides a multi-channel powder core wire and a TiB2-TiC-Ni-based high-heat-conductivity wear-resistant anti-corrosion coating. The multi-channel powder core wire comprises an outer skin with a multi-channel structure and a powder core filled in the multi-channel structure of the outer skin; the outer skin is made of nickel-chromium alloy; the powder core comprises TiB2 precursor powder, TiB2 / TiC precursor powder, heat conduction metal powder and CrMo metal mixed powder, and different channel structures of the outer skin are filled with the TiB2 precursor powder, the TiB2 / TiC precursor powder, the heat conduction metal powder and the CrMo metal mixed powder respectively. According to the method, the multi-channel powder core wire and the electric arc spraying technology are combined, the high-performance coating with fine and dispersed TiB2 and TiC particles, continuous distribution of a heat conduction metal (Cu) phase and sufficient solid solution of Cr / Mo elements is prepared in situ in one step, and the problems that an existing coating technology is insufficient in abrasion resistance, poor in corrosion resistance and low in heat conductivity under the coupling working conditions of abrasion, corrosion and the like are solved.

The invention discloses a high-toughness corrosion-resistant hard alloy plate for a progressive die and a preparation method and application of the high-toughness corrosion-resistant hard alloy plate, and relates to the technical field of hard alloy materials. Comprising the following raw materials in parts by mass: 80-90 parts of hard phase WC; a binding phase and alloying element: 8-15 parts of Co; 2 to 8 parts of Ni; 0.5 to 2 parts of one or more of Cr3C2, CrN or metal Cr; and 0.1 to 1 part of Mo. By synergistically introducing Cr and Mo elements into a Co-Ni binding phase system and combining cold isostatic pressing densification, segmented sintering, phase regulation and control heat treatment and surface NiO / Cr2O3 double-layer passivation film construction, high hardness and high strength and toughness are achieved, meanwhile, the electrochemical corrosion resistance is remarkably improved, the crack depth after EDM machining is controlled within 40 microns, and the corrosion resistance is greatly improved. And the method is more suitable for long-term stamping working conditions of high-precision progressive dies.

The invention relates to the technical field of engineering materials, and discloses powder containing metal elements, an alloy material for a wear-resistant layer of a wear plate, the wear plate and a preparation method and application of the wear plate. The powder contains a tungsten element, a titanium element, a vanadium element, a molybdenum element, a chromium element, a nickel element and a carbon element; based on the total mass of the powder, the content of the tungsten element is 2-5 wt%, the content of the titanium element is 5-20 wt%, the content of the vanadium element is 5-10 wt%, the content of the molybdenum element is 10-25 wt%, the content of the chromium element is 5-15 wt%, the content of the nickel element is 2-6 wt%, and the content of the carbon element is 2-6 wt%. The wear-resistant layer of the wear plate has the wear resistance equivalent to that of an existing tungsten carbide hard alloy wear-resistant layer, the same wear-resistant layer is adopted for the through holes and the sealing area of the wear plate, and the overall wear resistance is more balanced.