Toughened intermetallic compound, preparation method of toughened intermetallic compound and apparatus

Abstract

The invention provides a toughened intermetallic compound, a preparation method of the toughened intermetallic compound and an apparatus. The method includes the following steps that: intermetallic compound powder and toughening metal wires are selected as raw materials; and the intermetallic compound powder and the toughening metal wires are laid on a substrate alternately layer by layer, and are melted, so that the toughened intermetallic compound can be obtained, and preferably, the diameter of the metal wires ranges from 0.01 to 2mm. According to the invention, a metal fiber toughened intermetallic compound concept is put forward, and the power bed-based wire/power additive preparation method is provided. According to the preparation method, the metal wires are melt discretely layer by layer in each inner layer, so that metal fibers can be waved, and any metal fibers can be designed, and metal fiber toughened intermetallic compound materials or complex abnormally-shaped components thereof can be prepared directly through deposition.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to a toughened intermetallic compound and its preparation method and equipment. Background technique [0002] High room temperature brittleness and poor forming process are the main obstacles to the popularization and application of intermetallic compounds. Laminated or fiber-toughened intermetallic materials are widely used at home and abroad to overcome their brittleness. The laminated material is an ultra-fine layered structure material formed by overlapping two different materials according to a certain layer spacing and layer thickness ratio. Because of its unique microstructure characteristics, it has more excellent high-temperature toughness and creep resistance. Fracture strength, fracture toughness, oxidation resistance, etc. Metal laminate toughening intermetallic compounds rely on high temperature resistant intermetallic compounds to provide high temperature strength and...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the bottleneck problems of engineering applications such as high room temperature brittleness and poor forming process of intermetallic compounds, an object of the present invention is to provide a method for toughening intermetallic compounds

The invention effectively solves the problems that restrict engineering application in the laser powder cladding method, such as mixing of metal powder and intermetallic compound powder, low material utilization rate, poor performance design and realization feasibility, difficulty in preparing complex special-shaped structural parts and low forming accuracy, and promotes Application and popularization of intermetallic compounds in high temperature structural parts

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