Titanium aluminum alloy preparation and processing technology

The preparation and processing technology of titanium aluminum alloy are mainly as follows:
(1) Ingot metallurgy technology;
(2) Powder metallurgy technology;
(3) Rapid condensation technology;
(4) Composite material technology.
Titanium-aluminum alloy ingot metallurgy technology has problems such as segregation of the ingot composition and uneven structure; the titanium alloy powder prepared by the rapid condensation technology has stable chemical composition and good process performance, but with the change of heat treatment temperature, the powder microstructure Corresponding changes in microhardness and titanium aluminum alloy prepared by composite technology show good strengthening performance, but the lateral performance, environmental resistance and other issues still need to be resolved; powder metallurgy can produce uniform and small parts, and can Achieving near-net forming of parts can effectively solve the problem of Ti Al intermetallic compound alloy difficult to form. At present, there are two main powdering methods: elemental powder method and titanium aluminum pre-alloyed powder method. At present, domestic scholars mostly use the element powder method to prepare titanium aluminum alloy.

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