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Microstructural and Mechanical Property Changes in Model Fe-Cu Alloys

Published online by Cambridge University Press:  16 February 2011

Philip M. Rice
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6376, (USA)
Roger E. Stoller
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6376, (USA)
Barry N. Lucas
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6376, (USA)
Warren C. Oliver
Affiliation:
Nano Instruments Inc., P.O. Box 14211, Knoxville, TN 37914, (USA)
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Abstract

This paper describes a technique developed to determine values for the dislocation barrier strength of the defects believed to be responsible for the embrittlement of light water reactor (LWR) pressure vessel steels. Microstructures consisting of a single defect type were introduced by ion irradiation or thermal annealing, and the defect distributions were determined by TEM. Hardness changes were measured using a nano indenter and the dislocation barrier strengths for the defects involved were computed based on a dispersed barrier hardening model.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

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References

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Microstructural and Mechanical Property Changes in Model Fe-Cu Alloys
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