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Radiation Response of a 12YWT Nanostructured Ferritic Steel

Published online by Cambridge University Press:  31 January 2011

Michael Miller ,
David Hoelzer  and
Kaye F. Russell
Michael Miller
Affiliation:
millermk@ornl.gov, Oak Ridge National Laboratory, MSTD, Oak Ridge, Tennessee, United States
David Hoelzer
Affiliation:
hoelzerd@ornl.gov, United States
Kaye F. Russell
Affiliation:
k1r@ornl.gov, Oak Ridge National Laboratory, MSTD, Oak Ridge, Tennessee, United States
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Abstract

In order to evaluate the radiation response of 12YWT nanostructured ferritic steel to high dose neutron irradiation, the solute distribution, and size, number density, and compositions of nanoclusters in the unirradiated condition and after neutron irradiation to a dose of 3 dpa at a controlled temperature of 600 °C were estimated by atom probe tomography. No statistical difference in the average size or size distribution of the nanoclusters was found between the unirradiated and irradiated conditions. Therefore, these nanostructured ferritic steels are promising candidate materials for use under extreme conditions in future generations of advanced reactors.

Keywords

neutron irradiationradiation effectsmicrostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1215: Symposium V – Materials Research Needs to Advance Nuclear Energy , 2009 , 1215-V06-02
Copyright
Copyright © Materials Research Society 2010

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