Journal
JOURNAL OF NUCLEAR MATERIALS
Volume 452, Issue 1-3, Pages 328-334Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnucmat.2014.05.058
Keywords
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Funding
- Institute of Nuclear Safety System, Japan
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The effect of irradiation depth on localized deformation in strained SUS304 and SUS316 was assessed by irradiation to various doses using different energies of Fe++ and protons. The average height and spacing of slip steps formed on the surfaces after 2% plastic strain in 300 degrees C argon were characterized using AFM and SEM. The step height and spacing were nearly unchanged for irradiation depth greater than 1/3 of the average grain size. 2.8 MeV Fe++ irradiation, with an irradiation depth of <1 mu m, resulted in slightly larger step spacing compared to the unirradiated samples but it was much smaller compared to that in proton-irradiated samples with much greater irradiation depths. Step height and spacing also appeared to be affected by the grain size as they were nearly double in magnitude for 30 mu m compared to 14 mu m grain sizes in SUS304. (C) 2014 Elsevier B.V. All rights reserved.
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