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Mechanical Behavior of Ternary and Quaternary Rual Alloys

Published online by Cambridge University Press:  11 February 2011

T. K. Nandy ,
Q. Feng ,
D. Banerjee ,
M. F. X. Gigliotti  and
T. M. Pollock
T. K. Nandy
Affiliation:
University of Michigan, Materials Science and Engineering, Ann Arbor, MI 48109, USA.
Q. Feng
Affiliation:
University of Michigan, Materials Science and Engineering, Ann Arbor, MI 48109, USA.
D. Banerjee
Affiliation:
Defense Metallurgical Research Lab., Hyderabad 500058, India.
M. F. X. Gigliotti
Affiliation:
General Electric Company, Corporate Research and Development, Schenectady, NY 12301, USA.
T. M. Pollock
Affiliation:
University of Michigan, Materials Science and Engineering, Ann Arbor, MI 48109, USA.
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Abstract

The mechanical behavior of RuAl-base intermetallic alloys with alloying additions of boron, niobium and platinum has been investigated. Compression tests have been performed at room temperature and 973 K. While the addition of alloying elements results in solid solution strengthening, the strain-rate sensitivity and the activation volumes do not show a significant variation, thereby suggesting that the macroscopic flow mechanisms are not strongly affected. Deformation substructure analysis of the niobium-containing alloy shows the presence of <100> and <110> dislocations, while the platinum-containing alloy additionally contains a significant density of <111> dislocations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 753: Symposium BB – Defect Properties and Related Phenomena in Intermetallic Alloys , 2002 , BB2.11
Copyright
Copyright © Materials Research Society 2003

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References

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