paper, the Рadvance in development of these two pound based alloys achieved in CISRI is presented in detail, including the Рoptimization of alloy design, the microstructure control and the processing technology. prehensive mechanical and technological Рproperties of these two class of alloys have reached the world’s advanced level. Several ponents applied for aerospace, aircraft Рhave been essfully manufactured,some of which have put into a trial run on ground and some have taken part in flight. The new Рproblems which may affect the further engineering applications are also addressed. РKey words: pound;Ti3Al;Ti2AlNb;TMP;mechanical properties Р РBiography: Li Shiqiong, Ph. D., Prof., Central Iron & Steel Research Institute, Beijing 100081, P. R. China, Tel: 0086-10-62181009, Р E-mail:TiAl@
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