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A preparation method of powder metallurgy ti-ta binary metal-metal matrix composite material

A binary metal, powder metallurgy technology, applied in metal rolling, manufacturing tools, temperature control, etc., can solve the problems of complex method, short process, weak interface bonding, etc., achieve simple process steps, improve controllability, Small and even tissue effect

Active Publication Date: 2020-04-21
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the problems of weak interfacial bonding and complex methods in the preparation of metal-metal matrix composite materials such as traditional cumulative stacking and explosive molding, the purpose of the present invention is to use powder metallurgy technology to use metal powder as raw material to prepare stable interfacial bonding. , the method of the metal-metal matrix composite material with better performance, the method has simple procedure and short process, which is beneficial to industrial production

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  • A preparation method of powder metallurgy ti-ta binary metal-metal matrix composite material
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  • A preparation method of powder metallurgy ti-ta binary metal-metal matrix composite material

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Embodiment 1

[0037] a kind of like figure 1 The preparation method of powder metallurgy Ti-Ta metal-metal layered composite material shown in the present invention comprises the following steps:

[0038] (1) Use Ti powder (oxygen content 0.45%) with a particle size of -325 mesh and Ta powder (oxygen content 0.20%) with a particle size of -325 mesh as raw materials, except for a small amount of unavoidable impurity oxygen elements, and the raw materials do not contain Other elemental components other than Ti and Ta; weigh Ti powder and Ta powder according to the atomic ratio of 8:2, and mix the weighed raw material powder evenly with a V-type mixer. The mixing time is 8 hours, and the mixing process uses inert gas Argon for protection;

[0039] (2) Perform discharge plasma sintering on the fully mixed powder in step (1), control the pressure during sintering to 40MPa, control the heating rate to 200°C / min, control the cooling rate to 50°C / min, and control the sintering temperature to 1200 ...

Embodiment 2

[0046] a kind of like figure 1 The preparation method of powder metallurgy Ti-Ta metal-metal layered composite material shown in the present invention comprises the following steps:

[0047] (1) Use Ti powder (oxygen content 0.45%) with a particle size of -325 mesh and Ta powder (oxygen content 0.20%) with a particle size of -325 mesh as raw materials, except for a small amount of unavoidable impurity oxygen elements, and the raw materials do not contain Other elemental components other than Ti and Ta; weigh Ti powder and Ta powder according to the atomic ratio of 6:4, and mix the weighed raw material powder evenly with a V-type mixer. The mixing time is 8 hours, and the mixing process uses inert gas Argon for protection;

[0048] (2) Perform discharge plasma sintering on the fully mixed powder in step (1), control the pressure during sintering to 40MPa, control the heating rate to 200°C / min, control the cooling rate to 50°C / min, and control the sintering temperature to 1200 ...

Embodiment 3

[0055] a kind of like figure 1 The preparation method of powder metallurgy Ti-Ta metal-metal layered composite material shown in the present invention comprises the following steps:

[0056] (1) Use Ti powder (oxygen content 0.45%) with a particle size of -325 mesh and Ta powder (oxygen content 0.20%) with a particle size of -325 mesh as raw materials, except for a small amount of unavoidable impurity oxygen elements, and the raw materials do not contain Other elemental components other than Ti and Ta; weigh Ti powder and Ta powder according to the atomic ratio of 8:2, and mix the weighed raw material powder evenly with a V-type mixer. The mixing time is 8 hours, and the mixing process uses inert gas Argon for protection;

[0057] (2) Perform discharge plasma sintering on the powder fully mixed in step (1), control the pressure during sintering to 40MPa, control the heating rate to 200°C / min, control the cooling rate to 50°C / min, and control the sintering temperature to 850 ...

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Abstract

The invention discloses a method for preparing a Ti-Ta binary metal-metal base layered composite material through powder metallurgy. The method comprises the following steps that 1) Ti powder and Ta powder are uniformly mixed, and then a sintered blank is prepared through spark plasma sintering; 2) surface treatment is performed on the sintered blank, then medium-temperature rolling is performed to obtain a compact metal-metal composite plate; 3) cold rolling treatment is performed on the metal-metal composite plate to obtain a cold-rolled plate; and 4) annealing treatment is performed on thecold-rolled plate, so that the Ti-Ta binary metal-metal base layered composite material with stable interface combination and relatively good performance is obtained. The method has the advantages that the process is simple, the procedure is short, and the industrial production is facilitated.

Description

technical field [0001] The invention relates to a method for preparing a Ti-Ta binary metal-metal composite material, in particular to a method for preparing a Ti-Ta binary metal-metal-based composite material by using powder metallurgy technology, and belongs to the field of metal material molding. Background technique [0002] With the rapid development of the national economy and the rapid advancement of various technologies, people's demand for various engineering materials with different properties is becoming more and more extensive. However, due to the limitation of reserves and insufficient comprehensive performance of a single metal, it has great limitations in the application field. Therefore, the R&D, production and application of composite materials have become more and more important. As a material with simple process and good controllability, dissimilar metal-metal layered composite material has the advantages of high strength, good corrosion resistance, good ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B22F7/02C21D9/00C22C14/00C22F1/18B21B1/22B21B37/58B21B37/74
Inventor 刘咏徐圣航刘彬周承商
Owner CENT SOUTH UNIV