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Zirconium based amorphous alloy and manufacture method thereof

A technology of zirconium-based amorphous alloy and amorphous alloy, which is applied in the field of zirconium-based amorphous alloy and its preparation, can solve the problem of low bending strength of zirconium-based amorphous alloy, increased production cost of zirconium-based amorphous alloy products, and amorphous alloy. Low content, etc.

Active Publication Date: 2009-05-27
BYD CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] Zirconium-based amorphous alloys disclosed in the prior art have low flexural strength and low amorphous content. During the casting process, the performance requirements of the casting equipment are relatively high, (such as: cooling rate 10 3 -10 5 K / s, absolute pressure of vacuum environment 10 -2 -5Pa), these greatly increase the production cost of zirconium-based amorphous alloy products, and limit the application of zirconium-based amorphous alloys in industry

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  • Zirconium based amorphous alloy and manufacture method thereof

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preparation example Construction

[0017] The preparation method of the rare earth-based amorphous alloy provided by the present invention is simple, the process is easy for continuous production, and the cooling rate is 10-10 5 K / s, absolute pressure of vacuum environment 10 -2 Under the condition of -100 Pa, a zirconium-based amorphous alloy with an amorphous content of more than 80% by volume can be obtained. Through the method, the obtained zirconium-based amorphous alloy has good flexural and impact resistance.

[0018] The present invention provides a method for preparing a zirconium-based amorphous alloy. The method includes smelting and cooling the amorphous alloy raw materials under protective gas, wherein the amorphous alloy raw materials include: Zr, T M , Ti and Be, Zr, T M , Ti and Be added to make the resulting alloy composition: Zr a T Mb Ti c Be d , Where 20≤a≤75, 10≤b≤50, 1≤c≤30, 10≤d≤40, a, b, c, d are mole percentages and a+b+c+d=100; preferably , 40≤a≤46, 22≤b≤27, 1≤c≤11, 20≤d≤25, and a+b+c+d=10...

Embodiment 1

[0024] This embodiment is used to illustrate the preparation method of the zirconium-based amorphous alloy provided by the present invention.

[0025]Put 22 grams of amorphous alloy raw materials into the electric arc furnace (Shenyang Scientific Instrument Manufacturing Co., Ltd.), and evacuate the electric arc furnace, where the vacuum degree is 5 Pa. Using argon with a purity of 99.0% by volume as the protective gas, smelting at 1800°C for 20 seconds. The composition of the amorphous alloy is 42% Zr, 9% Ti, 14% Cu, 12% Ni, and 23% Be.

[0026] Then cast the molten alloy sample into a copper mold to 10 5 Air cooling is carried out at a cooling rate of K / s, and the alloy sample D with a size of 100mm×10mm×3mm is cast. 1 , The composition of the alloy sample is Zr 42 Ti 9 Cu 14 Ni 12 Be 23 .

Embodiment 2

[0028] This example illustrates the preparation method of the zirconium-based amorphous alloy provided by the present invention.

[0029] Put 22 grams of amorphous alloy raw materials into an electric arc furnace (Shenyang Scientific Instrument Manufacturing Co., Ltd.), and evacuate the electric arc furnace, where the vacuum degree is 50 Pa. Using argon with a purity of 99.2% by volume as the protective gas, smelting at 2000°C for 24s. The composition of the amorphous alloy is 40% Zr, 11% Ti, 14% Cu, 11% Ni, and 24% Be.

[0030] Then the molten alloy sample was cast into a copper mold and air-cooled at a cooling rate of 10K / s, and cast into an alloy sample D with a size of 100mm×10mm×3mm 2 , The composition of the alloy sample is Zr 40 Ti 11 Cu 14 Ni 11 Be 24 .

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Abstract

The invention discloses a zirconium based amorphous alloy. The amorphous alloy consists of ZraTMbTicBed, wherein a is more than or equal to 20 and is less than or equal to 75; b is more than or equal to 10 and is less than or equal to 50; c is more than or equal to 1 and is less than or equal to 30; d is more than or equal to 10 and is less than or equal to 40; and the sum of a, b, c and d is 100; and TM is two or more than two selected from Cu, Ni, Co, Zn, Nb and Mn. Under protection of inert gas, proportioned alloys are sufficiently alloyed in an arc-melting furnace or an induction melting furnace; and the sufficiently alloyed molten metal is cast or cast by suction in a mould for cooling molding. The invention also provides the zirconium based amorphous alloy and a preparation method thereof. Compared with the prior zirconium based amorphous alloy, bending strength and impact resistance of the zirconium based amorphous alloy provided by the invention are obviously improved (the bending strength of 3,027.50MPa, and impact ductility of 620.578KJ / m<2>), and the zirconium based amorphous alloy has lower requirement on the performance of casting equipment, for example, cooling speed is 10-10<5>k / s, and environment absolute vacuum degree is absolute pressure of vacuum environment of 10<-2>-100Pa, while the hardness of the zirconium based amorphous alloy can reach corresponding requirement.

Description

Technical field [0001] The invention relates to a zirconium-based amorphous alloy and a preparation method thereof. Background technique [0002] Bulk amorphous alloy, also known as bulk metallic glass, is a new type of metastable material developed in the late 1980s. It is composed of a variety of elements with large differences in atomic radii and large negative heat of mixing. Multi-component system. The supercooled liquid of this type of alloy has special kinetic and thermodynamic characteristics, and the critical cooling rate of amorphous alloy transformation can be reduced to below 100k / s, so large-volume amorphous alloys can be prepared by conventional copper mold casting. [0003] Amorphous metal materials have excellent properties due to their special structure-long-range disorder and short-range orderly: high strength, high hardness, wear resistance, corrosion resistance, large elastic limit and high electrical resistance, etc. It also exhibits excellent superconductivi...

Claims

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Application Information

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IPC IPC(8): C22C45/10C22C1/02B22D27/04
Inventor 卢昆姜霖琳张法亮宫清
Owner BYD CO LTD
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