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Titanium doped beryllium-aluminum alloy and preparation method thereof

A technology of beryllium aluminum alloy and titanium doping is applied in the field of titanium-doped beryllium aluminum alloy and its preparation, which can solve the problems of restricting the application of beryllium aluminum alloy, and achieve the effect of high hardness, high application value and expanding application field.

Active Publication Date: 2018-08-24
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] On the other hand, due to the limitation of the performance of beryllium aluminum alloy, the further application of beryllium aluminum alloy is restricted.

Method used

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  • Titanium doped beryllium-aluminum alloy and preparation method thereof
  • Titanium doped beryllium-aluminum alloy and preparation method thereof

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Embodiment 1

[0041] In this embodiment, the mass percentages of the raw materials of the beryllium aluminum alloy are as follows: the aluminum content is 38 wt.%, and the balance is beryllium.

Embodiment 2

[0043] In this embodiment, the mass percentages of the raw materials of the beryllium aluminum alloy are as follows: the aluminum content is 38 wt.%, the titanium content is 1 wt.%, and the balance is beryllium.

Embodiment 3

[0045] In this embodiment, the mass percentages of the raw materials of the beryllium aluminum alloy are as follows: the aluminum content is 38 wt.%, the titanium content is 3 wt.%, and the balance is beryllium.

[0046] The preparation method of aforementioned embodiment 1~3 is as follows.

[0047] (1) Using beryllium blocks, aluminum blocks and titanium particles as raw materials, place the titanium particles at the bottom of a water-cooled copper crucible, and place the beryllium blocks and aluminum blocks on top of the titanium particles.

[0048] (2) Put the water-cooled copper crucible with metal beryllium, metal aluminum, and metal titanium in the melting furnace, then vacuumize the melting furnace to 5 Pa, and then fill it with argon gas of 0.04 MPa.

[0049] (3) Carry out arc melting again, the melting current is 400 A, and the melting voltage is 10V. After melting, first keep warm and stir in a magnetic field, and then turn off the power to solidify. . Wherein, the f...

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Abstract

The invention discloses a titanium doped beryllium-aluminum alloy and a preparation method thereof, and belongs to the field of alloy materials and preparation thereof. In the titanium doped beryllium-aluminum alloy, titanium particles are placed at the bottom of a water cooling copper crucible, and a beryllium block and an aluminum block are arranged above the titanium particles; pre-vacuumizingis carried out in a melting furnace, and then the melting furnace is filled with argon; electric arc melting is carried out; and after metal is completely molten, power is off for solidification, a magnetic field continues to be applied in the solidification process for stirring, and finally a titanium doped beryllium-aluminum alloy block is obtained. In the prepared titanium doped beryllium-aluminum alloy, a Be12Ti reinforced body is synthesized in situ, and the Be12Ti reinforced body has good dispersity. Meanwhile, the prepared titanium doped beryllium-aluminum alloy has higher hardness, theapplication range of the beryllium-aluminum alloy can be effectively expanded, and high application value is achieved. The preparation method is simple, operation is easy, the production process andperiod are short, the requirements of industrial large-scale production and application can be met, good application value and application prospects are achieved, and the titanium doped beryllium-aluminum alloy is worthy of large-scale application and popularization.

Description

technical field [0001] The invention relates to the field of alloy materials and their preparation, in particular to a titanium-doped beryllium aluminum alloy and a preparation method thereof. Background technique [0002] Beryllium-aluminum (BeAl) alloy combines the characteristics of metal beryllium and metal aluminum. It has the characteristics of low density, high specific stiffness, high specific strength and good thermal stability. It is widely used in aerospace industry, computer manufacturing industry, automobile industry and high precision Speed ​​welding machine manufacturing industry has been widely used. [0003] At present, beryllium aluminum alloys are mainly prepared by powder metallurgy and casting. Powder metallurgy is the earliest process used to produce beryllium aluminum alloy materials, and it is still used today. Powder metallurgy first prepares pre-alloyed powder by inert gas atomization, then obtains billets through cold and hot isostatic pressing p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C30/00C22C25/00C22C1/02
CPCC22C1/02C22C1/026C22C21/00C22C25/00C22C30/00
Inventor 王震宏彭仕先赵福泽宋衎
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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