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Deformation Behavior of a Quaternary Mo-Nb-Si-B Alloy

Published online by Cambridge University Press:  28 January 2011

A.P. Alur
Affiliation:
School of Engineering, Brown University, Providence, RI 02912
R. Sakidja
Affiliation:
Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53711
P. Wang
Affiliation:
School of Engineering, Brown University, Providence, RI 02912
P. Jain
Affiliation:
School of Engineering, Brown University, Providence, RI 02912
J.H. Perepezko
Affiliation:
Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53711
K.S. Kumar
Affiliation:
School of Engineering, Brown University, Providence, RI 02912
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Abstract

The microstructure and compression response of a quaternary Mo-Nb-Si-B alloy has been examined in in the temperature interval 1200°C-1600°C and in the strain rate regime 10–4 s–1 to 10–6 s–1 and compared to earlier results on the ternary Mo-Si-B alloys The microstructure is composed of a three-phase microlamellar eutectic composed of the Mo-Nb solid solution phase, the T1 and the T2 intermetallic phases. Compression test confirm significantly superior creep resistance for the eutectic alloy compared to the ternary Mo-rich Mo-Si-B alloys with virtually no microstructural degradation.

Keywords

Type
Research Article
Copyright
Copyright © Materials Research Society 2011

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References

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