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Comparative Creep Properties of Single-Phase Intermetallics of the Ti-Al System

Published online by Cambridge University Press:  01 January 1992

Kouichi Maruyama  and
Hiroshi Oikawa
Kouichi Maruyama
Affiliation:
Department of Materials Science, Tohoku University, Sendai, 980, Japan
Hiroshi Oikawa
Affiliation:
Department of Materials Science, Tohoku University, Sendai, 980, Japan
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Abstract

Creep characteristics of polycrystalline single-phase intermetallics, α2-Ti3AI and γ-TiAl, at 1100 K have been summarized to evaluate their relative strength at elevated temperature at three strain-rate levels, 10-1 10−4 and 10−8s−1, and are compared with those of α Ti-Al terminal solid solution alloys. The strength of these intermetallics is obviously higher than that of α, random solid solutions, especially at low strain-rates. However, the difference in high-temperature long-term strength among intermetallic alloys is not significant at any strain-rate level.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 653
Copyright
Copyright © Materials Research Society 1995

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