期刊
PROGRESS IN AEROSPACE SCIENCES
卷 55, 期 -, 页码 1-16出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.paerosci.2012.04.001
关键词
Titanium aluminide; Intermetallics; Manufacturing techniques; Deformation mechanisms; Microstructure evolution; Alloy development
Gamma titanium aluminides display attractive properties for high temperature applications. For over a decade in the 1990s. the attractive properties of titanium aluminides were outweighed by difficulties encountered in processing and machining at room temperature. But advances in manufacturing technologies, deeper understanding of titanium aluminides microstructure, deformation mechanisms, and advances in micro-alloying, has led to the production of gamma titanium aluminide sheets. An in-depth review of key advances in gamma titanium aluminides is presented, including microstructure, deformation mechanisms, and alloy development. Traditional manufacturing techniques such as ingot metallurgy and investment casting are reviewed and advances via powder metallurgy based manufacturing techniques are discussed. Finally, manufacturing challenges facing gamma titanium aluminides, as well as avenues to overcome them, are discussed. (c) 2012 Elsevier Ltd. All rights reserved.
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