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Effect of prestress on tensile yield strength of a Ni3Al alloy

Published online by Cambridge University Press:  31 January 2011

M. H. Yoo  and
C. T. Liu
M. H. Yoo
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6115
C. T. Liu
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6115
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Abstract

An experimental technique of prestressing and quenching was employed in order to elucidate the nature of pinning points responsible for the anomalous yield strength of Ni3Al. The apparent number density of pinning points at room temperature was found to be unaffected by the prestressing and quenching from elevated temperatures. This result is consistent with the crossslip-pinning (CSP) model in that cross-slipped segments act as pinning points on the leading superpartial dislocations.

Type
Articles
Information
Journal of Materials Research , Volume 3 , Issue 5 , October 1988 , pp. 845 - 847
Copyright
Copyright © Materials Research Society 1988

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References

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