A kind of high toughness amorphous composite material and its preparation method and application

Abstract

The invention discloses a high-toughness amorphous composite material and its preparation method and application. The amorphous composite material is prepared from a base alloy part and a toughness enhancing part; the element composition and atomic mole percentage of the base alloy part are: Zr: 45‑65%, Hf: 5‑15%, Al: 10‑20%, Ni: 10‑20%, M1 component: 5‑10%, M2 component: 2‑8%; the M1 group Divided into one or more of Sn, Bi, Si, Cu elements; the M2 component is one or two of Ag, Pd elements; the purity of each element in the basic alloy part is greater than 99.9%; the toughness enhancement part is One or more of WC, SiC, TiC, TiN, ZrC nano-powders, the amount added is 2-10% of the volume of the above-mentioned base alloy. The amorphous composite material in the invention has good impact toughness, and has high toughness and impact resistance without mechanical processing.

Description

Technical field [0001] The invention relates to the technical field of amorphous composite materials, and more specifically, to a high-toughness amorphous composite material and a preparation method and application thereof. Background technique [0002] Amorphous alloy refers to an alloy material in which the atomic arrangement is in a close-packed structure with short-range order and long-range disorder. Therefore, amorphous alloys do not have defects such as grain boundaries and dislocations of crystalline materials. This structural feature makes amorphous alloys have many excellent mechanical properties, such as high hardness, high strength, and good corrosion resistance. At the same time, amorphous alloys also have poor plasticity and toughness, and are prone to brittle fracture when used as structural parts. Problems, these shortcomings have always restricted the use of amorphous alloy components. [0003] The toughness of a metal refers to the ability of a material to absorb...

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Problems solved by technology

This structural feature makes amorphous alloys have a lot of excellent mechanical properties, such as high hardness, high strength, and good corrosion resistance, but at the same time amorphous alloys also have poor plasticity and toughness, and are prone to brittle fracture when used as structural parts. These shortcomings have always restricted the use of amorphous alloy components

[0004] The process of the above scheme is not only complicated and cannot be used on complex amorphous alloy components, but also cannot be applied to those components that require appearance quality

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