Actions for Microstructural evolution of martensitic steels during fast neutron iradiation [electronic resource].

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Microstructural evolution of martensitic steels during fast neutron iradiation [electronic resource].

Published
Washington, D.C : United States. Dept. of Energy. Office of Energy Research, 1989.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: (6 pages) : digital, PDF file
Additional Creators
Oak Ridge National Laboratory, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Irradiation of martensitic/ferritic steels with fast neutrons (E > 0.1 MeV) to displacement damage levels of 30--50 dpa at temperatures of 300--500°C produces significant changes in the as-tempered microstructure. Dislocation loops and networks can be produced, irradiation-induced precipitates can form, the lath/subgrain boundary structure and the thermal precipitates produced during tempering can become unstable, and if helium is present, bubbles and voids can form. These microstructural changes caused by irradiation can have important effects on the properties of this class of steels for both fast breeder reactor (FBR) and magnetic fusion reactor (MFR) applications. The purpose of this paper is to compare reactor-irradiated and long-term thermally aged 9Cr--1MoVNb specimens, in order to distinguish effects due to displacement damage from those caused by elevated-temperature exposure alone. 7 refs., 1 fig.
Report Numbers
E 1.99:conf-891103-24
conf-891103-24
Subject(s)
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Note
Published through SciTech Connect.
01/01/1989.
"conf-891103-24"
"DE89016231"
Winter meeting of the American Nuclear Society, San Francisco, CA (USA), 26-30 Nov 1989.
Maziasz, P.J.
Funding Information
AC05-84OR21400
View MARC record | catkey: 14749805