Preparation method of TiAl-based laminar composite material plate

A composite material board, composite board technology, applied in metal layered products, chemical instruments and methods, lamination and other directions, can solve the problems of poor tissue uniformity, poor tissue compactness, etc. The effect of internal oxidation
CN102729575AInactive Publication Date: 2012-10-17HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2012-10-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a TiAl-based laminar composite material plate, which is used for solving the problems of poor tissue compactness and poor tissue uniformity existing in the conventional TiAl-based material. The method comprises the following steps of: performing ball milling and powder mixing on reinforced bodied and Ti powder, and performing hot pressed sintering, linear cutting and surface pretreatment to obtain a TiB / Ti composite plate on which reinforced bodies are distributed continuously; performing surface treatment on the TiB / Ti composite plate and a pure Al plate, and performing laminating and hot pressing alternatively; and performing thermal treatment to perform a diffusion reaction on the Ti plate and the Al plate to obtain a TiAl-based laminar composite material plate. The TiAl-based laminar composite material plate disclosed by the invention can be used for preparing parts of aviation or space flight engines or wings or shell of ultrahigh-speed flying vehicles and preformed materials formed in a super plasticizing way.
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Description

technical field

[0001] The invention relates to a preparation method of a TiAl composite material plate. Background technique

[0002] TiAl-based alloy is a new type of lightweight heat-resistant structural material, with a specific gravity less than 50% of that of nickel-based alloys. It has the advantages of light weight, high strength, corrosion resistance, wear resistance, and high temperature resistance, and has excellent room temperature and high temperature performance. It has become a key material in the research and application of aviation, aerospace and military fields around the world. After decades of hard work, TiAl-based alloys have entered the stage of practical development. Among them, the demand for TiAl-based alloy plates is the most urgent.

[0003] The preparation of TiAl-based alloy sheets is one of the most important topics in the practical research of TiAl-based alloys. However, due to the intrinsic brittleness of TiAl-based alloys, it is very diffi...

Claims

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