Beryllium-aluminum-zirconium-series multi-element alloy and preparation method thereof

A multi-alloy, zirconium-based technology, applied in the field of non-ferrous metal alloys and beryllium aluminum alloy manufacturing, can solve the problems of high cost, complicated process, limited application of beryllium aluminum alloy, etc., and achieve the effect of low cost, simple process and excellent comprehensive performance.

Active Publication Date: 2018-07-20
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

[0006] The purpose of the present invention is to provide a bery

Method used

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  • Beryllium-aluminum-zirconium-series multi-element alloy and preparation method thereof
  • Beryllium-aluminum-zirconium-series multi-element alloy and preparation method thereof

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Effect test

Embodiment 1

[0041] In the beryllium-aluminum-zirconium multi-element alloy of this embodiment, the mass percentages of each component are as follows: the content of beryllium is 62%, the content of aluminum is 36.8%, the content of zirconium is 0.8%, and the content of added elements is 0.4%. Among the added alloying elements, the magnesium content is 0.2%, and the nickel content is 0.2%.

[0042] The preparation process is as follows.

[0043] (1) Preparation of beryllium aluminum alloy

[0044] Calculate the amount of metal beryllium and aluminum required in advance, and increase the amount of aluminum by 1.40% on the basis of the calculated value. Put the metal beryllium and aluminum raw materials into the alumina ceramic crucible in the vacuum induction melting furnace, in which the aluminum material is placed in the lower part of the crucible, and the beryllium material is placed in the upper part of the crucible, and then the casting of beryllium aluminum alloy is started. The cast...

Embodiment 2

[0050] The preparation process is as follows.

[0051] (1) Preparation of beryllium aluminum alloy

[0052] Calculate the amount of metal beryllium and aluminum required in advance, and increase the amount of aluminum input by 1.48~1.53% on the basis of the calculated value. Put the metal beryllium and aluminum raw materials into the hemispherical water-cooled copper mold crucible in the vacuum arc melting furnace, in which the aluminum material is placed in the lower part of the crucible, and the beryllium material is placed in the upper part of the crucible, and then the casting of beryllium aluminum alloy is started. The casting process is: melting and casting The minimum vacuum in the forehearth is 1×10 -2 ~8×10 -3 Pa, and then the protective gas argon is charged to 0.10 MPa, the melting current is 420 amperes, the number of melting times is 5 times, and the melting time is 5 minutes each time.

[0053] (2) After being released from the furnace, the beryllium alloy ingo...

Embodiment 3

[0060] In the beryllium-aluminum-zirconium multi-element alloy of this embodiment, the mass percentages of each component are as follows: the content of beryllium is 65%, the content of aluminum is 33.2%, the content of zirconium is 0.8%, and the content of added elements is 1.0%. Among the added alloying elements, the zinc content is 0.8%, and the platinum content is 0.2%.

[0061] The preparation process is as follows.

[0062] (1) Preparation of beryllium aluminum alloy

[0063] Calculate the amount of metal beryllium and aluminum required in advance, and increase the amount of aluminum input by 1.73~1.78% on the basis of the calculated value. Put the metal beryllium and aluminum raw materials into the hemispherical water-cooled copper mold crucible in the vacuum arc melting furnace, in which the aluminum material is placed in the lower part of the crucible, and the beryllium material is placed in the upper part of the crucible, and then the beryllium aluminum alloy arc me...

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Abstract

The invention discloses a beryllium-aluminum-zirconium-series multi-element alloy and a preparation method thereof which aim at solving the problems that at present, a method that a beryllium-aluminumalloy is prepared by adopting powder hot isostatic pressing is complicated in technology and very high in cost and greatly limits application of the beryllium-aluminum alloy. The beryllium-aluminum-zirconium-series multi-element alloy is prepared and formed by adopting the following raw materials of, by weight, 54-80% of metal beryllium, 17-45% of metal aluminum, 0.2-2% of metal zirconium and 0.1-1.0% of add element. In the beryllium-aluminum-zirconium-series multi-element alloy and the preparation method thereof, based on an existing beryllium-aluminum alloy, the metal zirconium and other alloying elements are added, a beryllium-aluminum alloy base material is prepared firstly, then a pre-alloying beryllium-aluminum-zirconium-series multi-element alloy is prepared through a vacuum induction smelting method, and then the beryllium-aluminum-zirconium-series multi-element alloy is obtained through subsequent remelting. According to the beryllium-aluminum-zirconium-series multi-element alloy and the preparation method thereof, by conducting multi-element alloying of zirconium and other elements on the beryllium-aluminum alloy, an equiaxed crystal alloy with the refined structure andthe uniform size can be obtained, structure defects and composition segregation are reduced, and alloy plasticity is improved, so that alloy mechanical properties are greatly improved, and the excellent comprehensive performance is achieved.

Description

technical field [0001] The invention relates to the field of non-ferrous metal alloys, in particular to the field of beryllium-aluminum alloy manufacturing, in particular to a beryllium-aluminum-zirconium multi-element alloy and a preparation method thereof. Background technique [0002] Despite more than 40 years of development, beryllium-aluminum alloy is still a light-weight high-strength alloy with rapid development. Beryllium aluminum alloy fully combines the low density and high strength of metal beryllium with the high plasticity and excellent machining properties of metal aluminum. It has good toughness and easy processing. It is a unique light weight, rigidity and high damping property and high stability materials. Although the comprehensive performance of beryllium aluminum alloy is slightly inferior to that of metal beryllium, due to the reduction of beryllium content in beryllium aluminum alloy, the cost of raw materials has been greatly reduced, and the process...

Claims

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Application Information

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IPC IPC(8): C22C25/00C22C1/03
CPCC22C1/03C22C25/00
Inventor 余良波王晶赵海斌张俊鲍永鑫周福印张晨杨勋刚
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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