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A Comparison of the microstructure and tensile behaviour of irradiated fcc and bcc metals

Published online by Cambridge University Press:  15 February 2011

N. Baluc
Affiliation:
Ecole Polytechnique de Lausanne, CRPP-Fusion Technology Materials, 5232 Villigen PSI, Switzerland
C. Bailat
Affiliation:
Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
Y. Dai
Affiliation:
Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
M.I. Luppo
Affiliation:
On leave from Comisión Nacional de Energía Atómica, Argentine
R. Schaublin
Affiliation:
Ecole Polytechnique de Lausanne, CRPP-Fusion Technology Materials, 5232 Villigen PSI, Switzerland
M. Victoria
Affiliation:
Ecole Polytechnique de Lausanne, CRPP-Fusion Technology Materials, 5232 Villigen PSI, Switzerland
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Abstract

As part of an on-going research program, findings are presented from a comparison of the microstructures and associated tensile properties of fcc and bcc materials after high energy proton irradiation, to fluences between 10−4 and 1 dpa, at 300-320 K. Results for this comparison between Cu, Pd, 304 and 316 stainless steel on one side and Fe and the F82H ferritic-martensitic low activation steel on the other are discussed, showing a strong difference in defect accumulation behaviour between the differing crystal structures. The overall deformation behaviour is similar, with an initial localised deformation taking place in all cases, even though the actual deformation mode itself might be different. Furthermore, a comparison is made with some of the materials that have also been irradiated with fission neutrons, showing no influence of the PKA spectra for these irradiation conditions.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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