A method for preparing a high-damping titanium-nickel layered composite material with multi-level interfaces

Abstract

The application discloses a preparation method of a high-damping titanium-nickel layered composite material with multi-level interfaces, and the method comprises the following steps: firstly, titanium alloy powder and titanium-nickel alloy powder are uniformly arranged layer by layer in a graphite mold and compacted by a graphite pressure head to obtain a laminated powder; and secondly, the laminated powder is subjected to discharge plasma sintering to obtain the high-damping titanium-nickel layered composite material with multi-level interfaces. The application adopts a powder lamination metallurgy method combined with a discharge plasma sintering process, controls interface eutectoid reaction and layer-in peritectic reaction conditions, realizes discontinuous distribution of interface Ti2Ni brittle layers, constructs multi-level composite interface structures with laminated interfaces and layer-in precipitated phase interfaces, improves high-temperature damping performance of the titanium-nickel layered composite material, and widens application of the titanium-nickel layered composite material in the field of vibration and noise reduction.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of metal laminated composites, and particularly relates to a preparation method of a high-damping titanium-nickel system laminated composite with a multi-stage interface. BACKGROUND

[0002] Titanium alloy has been widely used in the aerospace field due to its low density, excellent mechanical and corrosion resistance, and is known as the "metal of the 21st century". However, with the rapid development of the aerospace field, titanium alloy is slightly insufficient in the use of precise functional devices with high vibration reduction requirements due to its intrinsic low damping behavior. In order to further expand the use range of titanium alloy, material scientists attempt to prepare high-performance titanium-nickel system laminated composites by compounding titanium alloy with high-damping titanium-nickel alloy.

[0003] Existing research (Journal of Materials Processing Tech. 275 (2020) 116354, Journal of Materials Science 48 (2013) 7718-7727) shows that in the process of preparing titanium-nickel system laminated composites by using the traditional metal foil laminated metallurgy method, the interface brittle Ti2Ni phase is mostly in the form of continuous reaction layer. The continuous brittle layer and the metal matrix will cause uneven stress distribution at the layer interface due to the difference in modulus and Poisson's ratio, resulting in non-coordinated deformation during loading, thus showing premature interface delamination. In order to solve the problem of non-coordinated deformation caused by the continuous interface brittle layer, Jia et al. (Materials Science and Engineering A 815 (2021) 141302) eliminated the continuity of Ti2Ni by hot rolling process, and successfully prepared a titanium-nickel system intermetallic laminated composite with non-continuous distribution of interface brittle layer. The laminated composite benefits from the non-continuous distribution of the brittle layer, and the ductile phase can more effectively hinder the rapid expansion of the brittle crack along the vertical loading direction, showing more excellent bending strength and toughness. However, in the hot rolling process of the above research, the brittle Ti2Ni layer cannot withstand the large plastic deformation, thus producing more pores and cracks, which seriously affects the stability of the material during service. Therefore, in the process of regulating the distribution form of the interface brittle Ti2Ni layer, larger plastic deformation should be avoided.

[0004] In addition, titanium-nickel alloy is a twinned damping alloy, which does not exist interface movement energy consumption in high temperature parent phase austenite, and the dislocation density is low, so the high temperature damping enhancement effect is poor. Restricted by the high temperature low damping phenomenon of titanium-nickel alloy, if only the intrinsic damping characteristics of the titanium-nickel alloy are used as the damping enhancement mechanism of the composite material, there are limitations. Zhang et al. (Science Advances 6 (2020) eaba5581) and Xu et al. (Materials Science and Engineering A 857 (2022) 144040) found that in the design of damping materials, by introducing high-density multi-level interface organization to promote the coupling of interface damping and dislocation damping, the damping performance of the material can be further improved. In summary, on the basis of realizing the non-continuous distribution of the interface brittle layer, introducing multi-level interface organization is the key to the design of high-damping titanium-nickel system layered composite materials. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a preparation method of a high-damping titanium-nickel system layered composite material with multi-level interfaces to solve the above problems of the prior art. The method realizes the rapid densification preparation of the layered composite material by adopting the powder layering metallurgy method combined with the spark plasma sintering process, realizes the non-continuous distribution of the interface Ti2Ni brittle layer by adjusting the interface eutectoid reaction conditions, and constructs multi-level composite interface organization with layering interfaces, layering precipitated phase interfaces and the like, thereby improving the high-temperature damping performance of the titanium-nickel system layered composite material and solving the problem of poor damping strengthening effect of titanium-nickel alloy in the high-temperature austenite state.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is as follows: a preparation method of a high-damping titanium-nickel system layered composite material with multi-level interfaces, characterized in that the method comprises the following steps:

[0007] Step one, layering arrangement of metal powder: place a metal sieve on the die sleeve of a graphite mold, then weigh titanium alloy powder using an analytical balance and evenly spread it on the surface of the metal sieve, knock the side wall of the metal sieve with a metal rod to make the titanium alloy powder evenly sift down and lay flat on the concave die of the graphite mold, then use a graphite pressure head to compact the laid titanium alloy powder to form a titanium alloy powder layer, according to the weighing, spreading, laying and compacting process of the titanium alloy powder, lay titanium-nickel alloy powder on the titanium alloy powder layer to form a titanium-nickel alloy powder layer, and repeatedly layer the formation process of the titanium alloy powder layer and the titanium-nickel alloy powder layer to obtain a layered powder; the uppermost layer and the lowermost layer of the layered powder are both titanium alloy powder layers;

[0008] Step two, preparation of high-damping titanium-nickel layered composite: the layered powder obtained in step one is subjected to spark plasma sintering to obtain a high-damping titanium-nickel layered composite with a multi-level interface; the damping factor of the high-damping titanium-nickel layered composite is 0.0130-0.0180 at 200-290℃.

[0009] In the existing research, the preparation of titanium-nickel layered composite is mostly carried out by metal foil layering metallurgy. However, the interface of the layered composite prepared by the metal foil layering metallurgy tends to form a continuous brittle intermetallic compound layer, which deteriorates the comprehensive performance of the material. In addition, most of the composite prepared by the above method only contains a single layering interface, and lacks a multi-level hybrid interface structure. Therefore, the composite prepared by the metal foil layering metallurgy only exhibits excellent damping performance in the low-temperature martensite stage, and the damping performance drops sharply in the high-temperature austenite state.

[0010] To make up for the above shortcomings, the titanium alloy powder and the titanium-nickel alloy powder are first stacked in a graphite mold to form a titanium alloy powder layer and a titanium-nickel alloy powder layer, and the upper and lower surfaces of the layered powder are always the titanium alloy powder layer. Then, the layered powder is subjected to rapid spark plasma sintering to prepare a high-damping titanium-nickel layered composite with a multi-level interface. On the one hand, the rapid spark plasma sintering used in the present application generates spark plasma on the surface of the metal powder, which realizes the high activation of the surface of the metal powder, ensures the density of the sintering on the basis of sufficiently reducing the sintering temperature and holding time. On the other hand, compared with the traditional metal foil layering sintering, the pores between the layered powder of the present application are helpful for the interdiffusion of atoms, the diffusion barrier of the atoms is lower, the interdiffusion distance of the atoms in the titanium alloy powder layer and the titanium-nickel alloy powder layer is farther, and the diffusion atoms can undergo eutectoid and peritectic reactions in the interface Ti2Ni brittle layer and the titanium-nickel alloy layer, respectively, to realize the non-continuous distribution of the interface Ti2Ni brittle layer and the construction of the multi-level composite interface structure. The micro-slip effect of the multi-level composite interface in the high-temperature austenite state improves the high-temperature damping performance of the titanium-nickel layered composite, effectively solving the problem of poor damping strengthening effect of titanium-nickel alloy in the high-temperature austenite state.

[0011] The preparation method of the high-damping titanium-nickel layered composite with a multi-level interface, wherein the mesh size of the metal sieve in step one is 140-200 mesh. The preferred sieve size can ensure uniform powder falling speed, avoid local powder aggregation, and ensure the uniformity of the thickness of each powder layer.

[0012] The preparation method of the high-damping titanium-nickel layered composite material with multi-level interfaces has the characteristics that the titanium alloy powder and the titanium-nickel alloy powder in step one are spherical. The preferred powder shape has good fluidity, and the powder can quickly flow into the gap during the compaction process of the graphite press head, which is beneficial to the uniform paving of the powder in the graphite mold.

[0013] The preparation method of the high-damping titanium-nickel layered composite material with multi-level interfaces has the characteristics that the mass ratio of the titanium alloy powder in each titanium alloy powder layer to the titanium-nickel alloy powder in each titanium-nickel alloy powder layer in step one is 9-27:13-39. The preferred powder paving mass ratio ensures the paving thickness of each titanium alloy powder layer and each titanium-nickel alloy powder layer in the graphite mold, thereby avoiding excessive disturbance between the interfaces of the stacked powder, which affects the integrity of the stacked powder.

[0014] The preparation method of the high-damping titanium-nickel layered composite material with multi-level interfaces has the characteristics that the temperature of the spark plasma sintering in step two is 800-900 DEG C, the sintering pressure is 15-25 MPa, the holding time is 1-5 min, and the vacuum degree is 0.1-0.4 Pa. The preferred sintering process ensures that the high-damping titanium-nickel layered composite material has high density, the interface fully undergoes eutectoid reaction, the continuity of the brittle reaction layer is eliminated, and a multi-level interface structure is obtained.

[0015] The preparation method of the high-damping titanium-nickel layered composite material with multi-level interfaces has the characteristics that the spark plasma sintering in step two adopts a gradient heating mode: first, the temperature is raised to 700 DEG C at a heating rate of 60-80 DEG C / min, and then the temperature is continuously raised to the spark plasma sintering temperature at a heating rate of 10-20 DEG C / min. The preferred gradient heating mode ensures uniform heating of each layer of powder between the stacked powder, thereby avoiding temperature surges and increasing sintering thermal stress.

[0016] The preparation method of the high-damping titanium-nickel layered composite material with multi-level interfaces has the characteristics that the total volume fraction of the titanium alloy layer in the high-damping titanium-nickel layered composite material in step two is 48-56%, the total volume fraction of the titanium-nickel alloy layer is 18-26%, and the total volume fraction of the interface Ti2Ni layer is 18-34%. The total volume fraction of each layer ensures that the high-damping titanium-nickel layered composite material has the structural characteristics of titanium alloy as the matrix and titanium-nickel alloy and Ti2Ni as the reinforcing phase, thereby avoiding excessive increase in the density of the layered composite material.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] 1、The present application adopts powder layer metallurgy method combined with discharge plasma sintering process, which is helpful for interatomic mutual diffusion, and eutectoid and peritectic reactions occur in the interface Ti2Ni brittle layer and titanium-nickel alloy layer respectively, realizing the discontinuous distribution of the interface Ti2Ni brittle layer, and constructing a multi-level composite interface structure with layer interface and layer separation phase interface, improving the high-temperature damping performance of titanium-nickel system layered composite material, and widening its application in the field of vibration and noise reduction.

[0019] 2、Compared with the traditional metal foil layer metallurgy method, the powder layer metallurgy method is used to prepare the layered composite material in the present application, and a series of pretreatment methods such as cutting, polishing, pickling, cleaning and drying are not required for the original material, and the original material is in a supply state, which reduces the cumbersome pretreatment method and improves the preparation efficiency.

[0020] 3、Compared with the traditional hot-pressing sintering method for preparing metal layered composite material, the discharge plasma sintering process used in the present application can realize the surface high activation of titanium-nickel alloy powder and titanium alloy powder during the preparation process, significantly shorten the sintering temperature and time, and improve the density of the layered composite material.

[0021] 4、Compared with the existing hot rolling method for realizing the discontinuous distribution of the brittle layer, the two-phase structure formed by the interface eutectoid reaction successfully eliminates the continuity of the interface brittle layer, and the interface deformation of the layered composite material is smaller, and no obvious cracks, holes and other defects are generated, which improves the stability of the layered composite material.

[0022] 5、Compared with the metal foil layer sintering method which needs to use different specifications of metal foil materials to realize the preparation of layered composite materials with different reinforcement phase volume fractions, the present application only needs to adjust the powder laying thickness of each layer to realize the control of the phase volume fraction, and the required raw material specifications are single, and the applicability is stronger, and in addition, no secondary deformation is required, the process flow is simple, the preparation time is short, and the energy consumption is saved, which is beneficial to the industrialization development.

[0023] 6、The high-damping titanium-nickel system layered composite material with multi-level interface prepared in the present application has excellent damping performance in a wide temperature range, and the damping factor is 0.0130-0.0180 in the temperature range of 200-290 DEG C, which is much higher than the damping factor of 0.0078-0.0080 of titanium-nickel alloy in austenitic state, and the damping performance changes little with temperature, which improves the stability of the damping performance of the composite material.

[0024] The technical scheme of the present application will be further described in detail below by means of the drawings and examples. DESCRIPTION OF DRAWINGS

[0025] Figure 1 The SEM diagram of the high-damping titanium-nickel system layered composite material prepared in Example 1 of the present application.

[0026] Figure 2 SEM image of interface Ti2Ni layer of high-damping titanium-nickel system layered composite material prepared in Example 1 of the present application.

[0027] Figure 3 SEM image of titanium-nickel alloy layer of high-damping titanium-nickel system layered composite material prepared in Example 1 of the present application.

[0028] Figure 4 Damping performance curve of high-damping titanium-nickel system layered composite material prepared in Example 1 of the present application and titanium-nickel alloy bulk material prepared in Comparative Example 1. DETAILED DESCRIPTION

[0029] Example 1

[0030] This example comprises the following steps:

[0031] Step one, stacking arrangement of metal powder: place a metal sieve with a pore size of 170 mesh on the die sleeve of a graphite mold, then weigh 18 g of spherical TC4 powder using an analytical balance and evenly spread it on the surface of the metal sieve, knock the side wall of the metal sieve with a metal rod to make the TC4 powder evenly sift down and lay flat on the concave die of the graphite mold, then use a graphite pressure head to compact the laid TC4 powder to form a TC4 powder layer with a powder laying thickness of 2 mm, according to the weighing, spreading, laying and compacting process of the TC4 powder, lay 26 g of spherical titanium-nickel alloy powder on the TC4 powder layer to form a titanium-nickel alloy powder layer with a powder laying thickness of 2 mm, and repeat the forming process of the TC4 powder layer and the titanium-nickel alloy powder layer in turn to obtain a stacked powder; the uppermost layer and the lowermost layer of the stacked powder are both TC4 powder layers;

[0032] Step two, preparation of high-damping titanium-nickel system layered composite material: discharge plasma sintering of the stacked powder obtained in step one to obtain a high-damping titanium-nickel system layered composite material with multiple interfaces; the process of discharge plasma sintering is as follows: first, increase the temperature to 700℃ at a temperature increasing rate of 70℃ / min, then continue to increase the temperature to 850℃ at a temperature increasing rate of 15℃ / min and keep the temperature for 3 min, the sintering pressure is 20 MPa, and the vacuum degree is 0.2 Pa; the total volume fraction of the TC4 layer in the high-damping titanium-nickel system layered composite material is 51%, the volume fraction of the titanium-nickel alloy layer is 23%, and the total volume fraction of the interface Ti2Ni layer is 26%.

[0033] Figure 1 SEM image of high-damping titanium-nickel system layered composite material prepared in this example, from Figure 1It can be seen that the high-damping titanium-nickel layered composite material presents an obvious layer-by-layer alternating arrangement structure, and the microstructure is dense without macroscopic defects. The layered composite material is composed of a titanium alloy layer, a Ti2Ni interfacial eutectoid reaction layer and a titanium-nickel alloy layer.

[0034] Figure 2 The SEM image of the interface Ti2Ni layer of the high-damping titanium-nickel layered composite material prepared in this example is shown in Figure 2, from which it can be seen that the interface Ti2Ni layer of the high-damping titanium-nickel layered composite material presents an obvious two-phase microstructure. Figure 2 It can be seen that the interface Ti2Ni layer of the high-damping titanium-nickel layered composite material presents an obvious two-phase microstructure. During the plasma discharge sintering process, the nickel atoms and titanium atoms at the interface of the titanium alloy / titanium-nickel alloy layer diffuse into each other due to the difference in concentration gradient. With the increase of the holding time, eutectoid reaction occurs at the interface of the titanium alloy / titanium-nickel alloy layer, forming the interface Ti2Ni layer with a structure of soft (Ti phase) wrapping hard (Ti2Ni phase). The ductile Ti phase in the interface Ti2Ni layer breaks the continuity of the brittle layer, reducing the sensitivity of crack propagation.

[0035] Figure 3 The SEM image of the titanium-nickel alloy layer of the high-damping titanium-nickel layered composite material prepared in this example is shown in Figure 3, from which it can be seen that the titanium-nickel alloy layer of the high-damping titanium-nickel layered composite material also presents an obvious two-phase microstructure. Figure 3 It can be seen that the interface Ti2Ni layer of the high-damping titanium-nickel layered composite material presents an obvious two-phase microstructure. During the plasma discharge sintering process, the nickel atoms and titanium atoms at the interface of the titanium alloy / titanium-nickel alloy layer diffuse into each other due to the difference in concentration gradient. With the increase of the holding time, eutectoid reaction occurs at the interface of the titanium alloy / titanium-nickel alloy layer, forming the interface Ti2Ni layer with a structure of soft (Ti phase) wrapping hard (Ti2Ni phase). The ductile Ti phase in the interface Ti2Ni layer breaks the continuity of the brittle layer, reducing the sensitivity of crack propagation.

[0036] Therefore, the titanium alloy layer / Ti2Ni layer interface, the Ti2Ni layer / titanium-nickel alloy layer interface, the two-phase eutectoid interface in the Ti2Ni layer and the peritectic microstructure interface in the titanium-nickel alloy layer of the high-damping titanium-nickel layered composite material together realize the construction of the multi-level interface microstructure of the layered composite material.

[0037] Comparative Example 1

[0038] The preparation process of the titanium-nickel alloy powder metallurgy sintered block of this comparative example is as follows: 78 g of spherical titanium-nickel alloy powder is placed in a graphite mold for discharge plasma sintering to prepare a titanium-nickel alloy block material. The process of discharge plasma sintering is as follows: first, heat at a heating rate of 70 ℃ / min to 700 ℃, then continue to heat at a heating rate of 15 ℃ / min to 850 ℃ and hold for 3 min, the sintering pressure is 20 MPa, and the vacuum degree is 0.2 Pa.

[0039] Figure 4A damping performance curve of the high-damping titanium-nickel layered composite material prepared in Example 1 and the titanium-nickel alloy bulk material prepared in Comparative Example 1 is shown in FIG. 1. Figure 4 It can be seen that the titanium-nickel alloy bulk material prepared in Comparative Example 1 has low damping performance, with a damping factor of 0.0078-0.0080 at 200-290℃. Since the titanium-nickel alloy bulk material lacks interface motion energy consumption in the high-temperature austenite state, the damping performance of the titanium-nickel alloy bulk material is significantly reduced. In contrast, the high-damping titanium-nickel layered composite material prepared in Example 1 has a damping factor of 0.0140-0.0151 at 200-290℃, which shows that the powder layering metallurgy combined with spark plasma sintering is used to introduce a multi-level composite interface structure by in-situ reaction, effectively improving the damping performance of the layered composite material and widening the application range of the layered composite material in the field of vibration and noise reduction.

[0040] Example 2

[0041] This example includes the following steps:

[0042] Step 1: Layering arrangement of metal powder: Place a metal sieve with a pore size of 140 mesh on the die sleeve of a graphite mold, then weigh 9g of spherical TA1 powder using an analytical balance and evenly spread it on the surface of the metal sieve, knock the side wall of the metal sieve with a metal rod to make the TA1 powder evenly pass through the sieve and fall flat on the concave die of the graphite mold, then use a graphite pressure head to compact the TA1 powder, forming a TA1 powder layer with a powder laying thickness of 1mm. According to the weighing, spreading, laying and compacting process of the TA1 powder, 13g of spherical titanium-nickel alloy powder is laid on the TA1 powder layer to form a titanium-nickel alloy powder layer with a powder laying thickness of 1mm. Repeat the forming process of the TA1 powder layer and the titanium-nickel alloy powder layer in turn to obtain a layered powder. The uppermost layer and the lowermost layer of the layered powder are both TA1 powder layers.

[0043] Step 2: Preparation of high-damping titanium-nickel layered composite material: The layered powder obtained in Step 1 is subjected to spark plasma sintering to obtain a high-damping titanium-nickel layered composite material with a multi-level interface. The process of spark plasma sintering is as follows: first, increase the temperature to 700℃ at a rate of 60℃ / min, then continue to increase the temperature to 800℃ at a rate of 10℃ / min and keep the temperature for 1min, the sintering pressure is 15MPa, and the vacuum degree is 0.1Pa. The total volume fraction of the TA1 layer in the high-damping titanium-nickel layered composite material is 56%, the volume fraction of the titanium-nickel alloy layer is 26%, and the total volume fraction of the interface Ti2Ni layer is 18%.

[0044] It is detected that the high-damping titanium-nickel layered composite material prepared in this example has a damping factor of 0.0130-0.0142 at 200-290℃.

[0045] Embodiment 3

[0046] The embodiment comprises the following steps:

[0047] Step one, the layered arrangement of metal powder: place a metal sieve with a 200 mesh aperture on the die sleeve of a graphite mold, then weigh 27g of spherical TA15 powder using an analytical balance and evenly spread it on the surface of the metal sieve, knock the side wall of the metal sieve with a metal rod to make the TA15 powder evenly sift down and lay flat on the concave die of the graphite mold, then use a graphite pressure head to compact the laid TA15 powder, forming a TA15 powder layer with a powder laying thickness of 3mm, according to the weighing, spreading, laying and compacting process of the TA15 powder, lay 39g of spherical titanium-nickel alloy powder on the TA15 powder layer to form a titanium-nickel alloy powder layer with a powder laying thickness of 3mm, and repeat the forming process of the TA15 powder layer and the titanium-nickel alloy powder layer in turn to obtain a layered powder; the uppermost layer and the lowermost layer of the layered powder are both TA15 powder layers;

[0048] Step two, preparation of high-damping titanium-nickel layered composite: discharge plasma sintering of the layered powder obtained in step one to obtain a high-damping titanium-nickel layered composite with multiple interfaces; the process of discharge plasma sintering is: first, heat at a heating rate of 80℃ / min to 700℃, then continue to heat at a heating rate of 20℃ / min to 900℃ and keep for 5min, the sintering pressure is 25MPa, and the vacuum degree is 0.4Pa; the total volume fraction of the TA15 layer in the high-damping titanium-nickel layered composite is 48%, the volume fraction of the titanium-nickel alloy layer is 18%, and the total volume fraction of the interface Ti2Ni layer is 34%.

[0049] It is detected that the high-damping titanium-nickel layered composite prepared in the embodiment has a damping factor of 0.0153-0.0180 in the temperature range of 200℃-290℃.

[0050] The above is only a preferred embodiment of the present application, and does not limit the present application in any way. Any simple modification, change and equivalent change made according to the technical essence of the present application to the above embodiment are still within the protection scope of the technical solution of the present application.

Claims

1. A method for preparing a high-damping titanium-nickel system layered composite with multi-level interface, characterized in that, The method comprises the following steps: Step one, the arrangement of the metal powder layer: place the metal sieve on the die sleeve of the graphite mold, then weigh the titanium alloy powder with an analytical balance and evenly spread it on the surface of the metal sieve, knock the side wall of the metal sieve with a metal rod to make the titanium alloy powder evenly sift down and lay flat on the die of the graphite mold, then use the graphite pressure head to compact the titanium alloy powder, form a titanium alloy powder layer, according to the weighing, spreading, laying and compacting process of the titanium alloy powder, lay the titanium-nickel alloy powder on the titanium alloy powder layer to form a titanium-nickel alloy powder layer, and repeat the forming process of the titanium alloy powder layer and the titanium-nickel alloy powder layer to obtain a layered powder; the uppermost layer and the lowermost layer of the layered powder are both titanium alloy powder layers; the mass ratio of the titanium alloy powder in each titanium alloy powder layer to the titanium-nickel alloy powder in each titanium-nickel alloy powder layer is 9-27:13-39; Step two, preparation of the high-damping titanium-nickel layered composite material: discharge plasma sintering the layered powder obtained in step one to obtain a high-damping titanium-nickel layered composite material with multiple interfaces; the temperature of the discharge plasma sintering is 800-900℃, the sintering pressure is 15-25MPa, the holding time is 1-5min, and the vacuum degree is 0.1-0.4Pa; The total volume fraction of the titanium alloy layer in the high-damping titanium-nickel layered composite material is 48-56%, the total volume fraction of the titanium-nickel alloy layer is 18-26%, and the total volume fraction of the interface Ti2Ni layer is 18-34%; The damping factor of the high-damping titanium-nickel layered composite material at 200-290℃ is 0.0130-0.0180.

2. The method of claim 1, wherein the method is characterized by: The pore size of the metal sieve in step one is 140-200 mesh.

3. The method of claim 1, wherein the method is characterized by: The titanium alloy powder and the titanium-nickel alloy powder in step one are both spherical.

4. The method of claim 1, wherein the method is characterized by: The discharge plasma sintering in step two adopts a gradient heating mode: first, heat at a rate of 60-80℃ / min to 700℃, then continue to heat at a rate of 10-20℃ / min to the temperature of the discharge plasma sintering.

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