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Powder metallurgy technology can effectively solve the diffi

Writer： Admin Source： MDM Date：2016-09-06

Powder metallurgy technology can effectively solve the difficulty in processing and forming of TiAl alloy

In recent years, in order to promote the high temperature high performance high titanium niobium alloy engineering
technology and industrialization process, our country developed with independent intellectual property rights of a new
generation of aerospace engine materials used high temperature high performance high titanium niobium alloy material,
will soon enter the stage of industrialization. This technology will make our country aerospace engine materials the world
leading level. High titanium niobium alloy is a research direction of innovation in our country, has the world's first high
temperature alloy patent, led the world in the field of research and development, is a milestone in the development of
titanium aluminum alloy, marked the titanium aluminum intermetallic compound research field in China as the
international leading position.
Our country has put a titanium alloy research included in the national 863 high technology and new material development.
After years of efforts, in the alloy microstructure, deformation characteristics and the effect of adding elements and alloy
preparation technology and so on has carried on the fruitful work. There have been many studies of titanium aluminum
alloy papers published in journals and conferences both at home and abroad.

The preparation of titanium alloy processing technology mainly includes: (1) Ingot metallurgy technology; (2) powder
metallurgy technology; (3) rapid condensation technology; (4) composite technology. Titanium-Aluminum alloy ingot
metallurgy technology has the problems of composition segregation and organization uneven and so on. Titanium-
aluminum alloy powder made by rapid condensation technology, has chemical component and good process
performance. But as the change of heat treatment temperature, microstructure and microhardness of powder will be
corresponding changes in preparation of composite technology shows good strengthening performance of titanium
aluminum alloy, but the lateral performance, such as environmental resistance problems remain to be solved. Powder
metallurgy method can produce small parts with uniform organization, and can realize the near net shape parts, which can
effectively solve the problem of Ti-Al intermetallic alloys are difficult to machine. At present there are two main
pulverizing method: element powder and titanium aluminum alloy powders beforehand. At present domestic scholars use
the elements to produce titanium aluminum alloy powder.

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Powder metallurgy technology can effectively solve the diffi

Powder metallurgy technology can effectively solve the difficulty in processing and forming of TiAl alloy

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