Zirconium-based amorphous alloy and preparation method thereof

A technology of zirconium-based amorphous alloys and components, which is applied in the field of amorphous alloy preparation, can solve the problems of poor plasticity of zirconium-based amorphous alloys, and achieve high compressive strength, good application prospects, and simple operation processes
CN102912261AInactive Publication Date: 2013-02-06SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2013-02-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a zirconium-based amorphous alloy. The zirconium-based amorphous alloy comprises zirconium, copper, nickel, aluminum and sliver; and the zirconium-based amorphous alloy is shown by the following formula: Zr70-xCu12.5Ni10Al7.5Agx, wherein x is more than or equal to 1 and less than or equal to 10. The preparation method comprises the steps of replacing zirconium element by a silver part, and melting by arc under vacuum, and then carrying out suction casting, so as to obtain the zirconium-based amorphous alloy. The zirconium-based amorphous alloy is excellent in plastic deformation capacity and high in strength; the amorphous alloy is high in glass transition temperature and initial crystallizing temperature, and wide in sub-cooled liquid phase area, and has a potential application prospect.
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Description

technical field

[0001] The invention relates to a zirconium-based amorphous alloy and a preparation method thereof, belonging to the field of preparation of amorphous alloys. Background technique

[0002] Alloy melts tend to spontaneously crystallize during cooling and solidification. But when the cooling rate is large enough, the alloy will pass through the crystallization process and form an amorphous alloy. Amorphous alloy is a metastable state. The atoms are arranged topologically disordered in three-dimensional space, without long-range periodic translational symmetry, and there are no defects such as grain boundaries, dislocations, and segregation in the structure. It is precisely because of this special microstructure that amorphous alloys exhibit extremely high strength and hardness, high elastic limit, excellent wear resistance and corrosion resistance, and at the same time exhibit excellent soft and hard magnetism and superconductivity characteristic. At present...

Claims

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