COMPOSITE AND PREPARATION METHOD OF JOINING AMORPHOUS ALLOY MATERIAL TO HETEROGENEOUS MATERIAL

摘要

A method of joining an amorphous alloy material to a heterogeneous material and a composite formed by the same are provided. The method comprises steps of: placing a pre-formed piece made of one of the amorphous alloy material and the heterogeneous material into a mold; heating the other of the amorphous alloy material and the heterogeneous material to a predetermined temperature, and casting the other of the amorphous alloy material and the heterogeneous material into the mold to form a transition connection part joining the amorphous alloy material to the heterogeneous material and having a fusion welded structure, a microstructure reinforcing connection structure and a composite connection structure; and cooling the amorphous alloy material and the heterogeneous material at a rate higher than a critical cooling rate of the amorphous alloy material to obtain a composite formed by joining the amorphous alloy material to the heterogeneous material by the transition connection part.

主权项

1. A method of joining an amorphous alloy material to a heterogeneous material, comprising steps of:
placing a first pre-formed piece made of one material selected from the group consisting of the amorphous alloy material and the heterogeneous material into a mold; heating a second piece made of one material selected from the group consisting of the amorphous alloy material and the heterogeneous material to a predetermined temperature to form a melt, wherein the first pre-formed piece and the second piece are made of different material; casting the melt into the mold to form a transition connection part, the transition connection part joining the amorphous alloy material to the heterogeneous material and having a fusion welded structure, in which the fusion welded structure is formed by the amorphous alloy material and the heterogeneous material via fusion welding; and cooling the amorphous alloy material and the heterogeneous material at a rate higher than a critical cooling rate of the amorphous alloy material to obtain a composite formed by the amorphous alloy material to the heterogeneous material joined via the transition connection part, wherein the pre-formed piece is made of the heterogeneous material, and the amorphous alloy material is heated to a temperature not lower than a glass transition temperature thereof and cast into the mold, in which a casting temperature of the amorphous alloy material is higher than a melting temperature of the heterogeneous material by a predetermined value.