Influence of injected interstitials on the void swelling in two structural variants of 304L stainless steel induced by self-ion irradiation at 500 °C

Sun, C.; Garner, F. A.; Shao, L.; Zhang, X.; Maloy, S. A.

doi:10.1016/j.nimb.2017.03.070

Title: Influence of injected interstitials on the void swelling in two structural variants of 304L stainless steel induced by self-ion irradiation at 500 °C

Journal Article · Tue Mar 28 00:00:00 EDT 2017 · Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms

DOI:https://doi.org/10.1016/j.nimb.2017.03.070· OSTI ID:1411343

Sun, C. ^[1]; Garner, F. A. ^[2]; Shao, L. ^[2]; Zhang, X. ^[3];

^[4]

Idaho National Lab. (INL), Idaho Falls, ID (United States). Materials and Fuels Complex; Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Texas A & M Univ., College Station, TX (United States). Nuclear Engineering Dept.
Purdue Univ., West Lafayette, IN (United States). School fo Materials Engineering
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The two variants of AISI 304L stainless steel (SS) with different grain size distributions were ion irradiated at 500 °C to a peak dose of ~60 dpa. In the coarse-grained annealed variant, a peak swelling of ~12% was observed closer to the specimen surface rather than at the depth of peak displacement damage. The forward shift in depth between peak swelling and peak dose is proposed to be a consequence of suppression of void nucleation by injected interstitials. The swelling behavior in the front portion of the ion range mirrors that of neutron-induced swelling in this steel, exhibiting significant curvature with increasing dose as the swelling rate approaches the terminal swelling rate of 1%/dpa. Furthermore, an ultrafine grain variant of this steel produced by severely plastic deformation exhibits a similar suppression of void nucleation in the injected interstitial region, but also shows a significantly extended transient regime, not reaching the terminal swelling rate by 60 dpa.

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-06NA25396; AC07-05ID14517-00088120

OSTI ID:: 1411343

Alternate ID(s):: OSTI ID: 1550477

Report Number(s):: LA-UR-16-25849; TRN: US1800211

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms, Vol. 409, Issue C; ISSN 0168-583X

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 18 works

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References (15)

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
36 MATERIALS SCIENCE
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Title: Influence of injected interstitials on the void swelling in two structural variants of 304L stainless steel induced by self-ion irradiation at 500 °C

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