Improving the ductility of γ(TiAl) based alloy by introducing disordered β phase

Improving the ductility of γ(TiAl) based alloy by introducing disordered β phase

A ductile phase was successfully introduced into a gamma -TiAl alloy by adding a large amount (7-32 at.%) of vanadium and using suitable heat-treating procedures. It was found that gamma and B2 phases co-existed after air- or water quenching from the beta + gamma phase filed, and B2 was an ordered p...

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Veröffentlicht in:Scripta metallurgica et materialia 1992-11, Vol.27 (10), p.1331-1336
Hauptverfasser: Shi, Jian-Dong, Pu, Zhongjie, Zhong, Zengyong, Zou, Dunxu
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals. Metallurgy
Other heat and thermomechanical treatments
Physics
Treatment of materials and its effects on microstructure and properties
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Zusammenfassung:A ductile phase was successfully introduced into a gamma -TiAl alloy by adding a large amount (7-32 at.%) of vanadium and using suitable heat-treating procedures. It was found that gamma and B2 phases co-existed after air- or water quenching from the beta + gamma phase filed, and B2 was an ordered phase with high strength, which could transform into disordered beta phase after ageing. This beta phase was very beneficial to the ductility of the TiAl-based alloy.
ISSN:0956-716X
DOI:10.1016/0956-716X(92)90079-T