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Progress in the Development and Understanding of Ti3Al Based Intermetallic Materials

Published online by Cambridge University Press:  01 January 1992

Harry A. Lipsitt*
Affiliation:
Department of Mechanical and Materials Engineering, Wright State University, Dayton, Ohio 45435
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Abstract

Recent results on the development of Ti3AI base materials, including orthorhombic alloys, are reviewed. Included in this discussion are new data and ideas concerning alloy development, phase equilibria, processing for improved toughness and ductility, environmental degradation, oxidation and corrosion resistance, and coating development. Several new families of alloys have been developed in recent years and the microstruc-ture%processing%property relationships in these alloys are reviewed. It is shown that errors in processing this class of alloy can lead to microstructural instabilities under service conditions. Finally, some immediate needs and some directions for further development are suggested.

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