Journal
SCRIPTA MATERIALIA
Volume 74, Issue -, Pages 48-51Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2013.10.001
Keywords
Fe-Cr; Neutron irradiation; Precipitation; Atom probe tomography
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Funding
- University of Michigan College of Engineering
- DOE Office of Nuclear Energy's Nuclear Energy University Program at the University of Michigan
- DOE Office of Nuclear Energy's Nuclear Energy University Program at University of California-Santa Barbara Colleges of Engineering
- ATR-NSUF program
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A series of model Fe-Cr alloys containing 3-18 at.% Cr was neutron irradiated at a nominal temperature of 563 K to 1.82 dpa. Solute distributions were analyzed by atom probe tomography, which revealed alpha' precipitation for alloys containing more than 9 at.% Cr. Both the Cr concentration dependence of alpha' precipitation and the measured matrix compositions are in agreement with the recently published Fe-Cr phase diagrams. An irradiation-accelerated precipitation process is strongly suggested. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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