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Low-cost bulk amorphous alloy

An amorphous alloy, low-cost technology, applied in the field of low-cost bulk amorphous alloys, can solve the problems of difficulty in forming bulk amorphous and high sensitivity to oxygen content, and achieve the advantages of reduced sensitivity, low cost and reduced production cost. Effect

Active Publication Date: 2015-12-09
CHANGZHOU STREAM LIQUID METAL CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to solve the problem that the amorphous alloy system in the prior art is highly sensitive to oxygen content and difficult to form massive amorphous in the industrial continuous production process, the present invention provides a A low-cost bulk amorphous alloy, which greatly reduces the sensitivity of the formula to oxygen content, and can still form a bulk, industrially applicable bulk amorphous alloy at a higher oxygen content

Method used

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Examples

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preparation example Construction

[0014] The preparation technology of bulk amorphous alloy in the present invention is as follows:

[0015] The raw materials Hf, Al, Cu, Ni, Ag, Re, Li, Na, K, Si, Mg, and Ca used in this example are metals of industrial grade purity, Zr and Ti metals are sponge zirconium, sponge titanium, Hf You can also choose sponge zirconium containing a certain amount of Hf. O can be oxygen brought in by metal oxides or other impurities. After the raw materials are prepared according to the atomic percentage, the master alloy ingot is prepared by arc melting or induction melting under the protection of argon. In order to ensure the uniformity of the smelted alloy ingot, when the master alloy ingot is smelted by electric arc, it needs to be turned over 3 to 4 times, and then cast through a Cu mold, the induction heating temperature is about 1000 ℃, and the vacuum degree is 10 -1 ~10 -2 Pa.

specific Embodiment

[0016] Specific examples are shown in the following table:

[0017]

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Abstract

The invention relates to the technical field of manufacturing of bulk amorphous alloy, in particular to low-cost bulk amorphous alloy. The chemical formula of the low-cost bulk amorphous alloy is Zra(Hf,Ti)bAlc(CuxNiy)d(Ag,Re)e(Li,Na,K,Si,Mg,Ca)fOg, wherein a, b, c, d, e, f and g are the percentage contents of corresponding atoms of all the elements in the amorphous alloy, 45<=a<=70, 5<=b<=10, 3<=c<=15, 20<=d<=40, 0<=e<=3, 0<=f<=10, 0.05<=g<=1 0.2<=x / y<=5, 0.1<=e+f<=10, and Re is one or more of rare earth elements. According to the low-cost bulk amorphous alloy, the sensitivity of a formula to the oxygen content is greatly reduced, so that the large bulk amorphous alloy suitable for industrial application can still be formed under the high oxygen content condition.

Description

technical field [0001] The invention relates to the technical field of bulk amorphous alloy manufacturing, in particular to a low-cost bulk amorphous alloy. Background technique [0002] Due to its special structure, Zr-based amorphous alloy has many excellent properties, such as: high strength (≥1500MPa), high hardness (about HRC50), high elastic limit (about 2%), excellent corrosion resistance and Liquid near-net formability, etc., have important application prospects in the fields of consumer electronics, medical and health care, aerospace and transportation. [0003] For Zr-based amorphous alloys, a variety of alloy components have been developed, such as the Zr-Ti-Cu-Ni-Be alloy system developed in the United States, with a critical cooling rate of 1K / s, strong amorphous formation ability, and manufacturable The ability is strong, but the existence of toxic element Be in the alloy system restricts its wide application. The Zr-Al-Ni-Cu alloy system developed in Japan c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/10
Inventor 申曦赵海朱勤旺陈堂权朱秀娟侯玉婷
Owner CHANGZHOU STREAM LIQUID METAL CO LTD
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