A centimeter-level Zr-based bulk amorphous alloy and its preparation and application methods

An amorphous alloy, centimeter-scale technology, applied in centimeter-scale Zr-based bulk amorphous alloys and their preparation, application fields, can solve problems such as poor corrosion resistance, improve corrosion resistance, improve amorphous formation ability, and widen The effect of the application foreground
CN103789709BInactive Publication Date: 2016-08-17FUJIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
FUJIAN UNIV OF TECH
Publication Date
2016-08-17
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a centimeter-sized high-toughness and high-corrosion resistance Zr-based bulk amorphous alloy, which specifically has a chemical formula ZraAlbNicAgd, wherein a is more than 54 and less than 58 atomic percent, b is more than 12 and less than 18 atomic percent, c is more than 18.2 and less than 24 atomic percent, and d is more than 5.6 and less than 9 atomic percent, and a+b+c+d=100. The invention also discloses a preparation method for the Zr-based bulk amorphous alloy and a method for preparing a thin strip and a rod by utilizing the amorphous alloy. According to the Zr-based bulk amorphous alloy and the methods, elemental Ni and Ag are selected as components of the alloy, so that the corrosion resistance is greatly improved, the amorphous alloy formability of a Zr-Al-Ni alloy is improved, and the prepared bulk amorphous alloy is ultrahigh in formability; the Zr-based amorphous alloy also has the characteristics of high-amorphous alloy formability, high toughness and high corrosion resistance.
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Description

technical field

[0001] The invention relates to the technical field of new materials, in particular, the invention relates to a centimeter-level Zr-based bulk amorphous alloy and its preparation and application methods. Background technique

[0002] Amorphous alloy, also known as metallic glass, is a general term for a class of metal alloys whose atoms are arranged in a long-range disordered and short-range ordered structure. Compared with traditional crystalline alloys, amorphous alloys lack the periodic symmetry and anisotropy of atomic arrangement, and do not have the same dislocations and grain boundaries as the crystal structure, which makes amorphous alloys have incomparable properties that traditional crystalline alloys have. physical and chemical properties. However, since the interatomic bonding force of the alloy exists in the form of non-directional metal bonds, the viscosity of the liquid is low, and the rearrangement of atoms is easy to diffuse, which is conduc...

Claims

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