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Precipitation at Grain Boundaries in Irradiated Austenitic Fe-Cr-Mn Alloys

Published online by Cambridge University Press:  22 February 2011

J. M. McCarthy
J. M. McCarthy*
Affiliation:
Pacific Northwest Laboratory, Operated for the Department of Energy by Battelle Memorial Institute, P. O. Box 999, Richland, WA 99352
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Abstract

In previous work, the phase stability of Fe-Cr-Mn alloys during irradiation was investigated in a study that included simple binaries, simple ternaries and commercially produced alloys. These low activation alloys are being considered for fusion reactor service in the first wall and in other structural applications subject to high neutron doses. In addition to phase instabilities observed within the grains, grain boundaries were susceptible to varying levels of precipitation dependent upon alloy composition, displacement dose and irradiation temperature. This paper describes the grain boundary microstructures that developed in these Fe-Cr-Mn alloys during irradiation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 153: Symposium J – Interfaces Between Polymers, Metals, and Ceramics , 1989 , 47
Copyright
Copyright © Materials Research Society 1989

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