Radiation resistance of oxide dispersion strengthened alloys: Perspectives from in situ observations and rate theory calculations

Liu, Xiang; Miao, Yinbin; Li, Meimei; Kirk, Marquis A.; Zhang, Guangming; Ukai, Shigeharu; Maloy, Stuart A.; Stubbins, James F.

doi:10.1016/j.scriptamat.2018.01.018

Radiation resistance of oxide dispersion strengthened alloys: Perspectives from in situ observations and rate theory calculations

Journal Article · Sun Apr 15 00:00:00 EDT 2018 · Scripta Materialia

DOI:https://doi.org/10.1016/j.scriptamat.2018.01.018· OSTI ID:1422905

Liu, Xiang ^[1]; Miao, Yinbin ^[2]; Li, Meimei ^[2]; Kirk, Marquis A. ^[2]; Zhang, Guangming ^[3]; Ukai, Shigeharu ^[4]; ^[5]; Stubbins, James F. ^[6]

Univ. of Illinois, Urbana, IL (United States). Dept. of Nuclear, Plasma, and Radiological Engineering
Argonne National Lab. (ANL), Argonne, IL (United States). Nuclear Engineering Division
Qingdao Univ. of Technology, Shandong (China)
Hokkaido Univ., Sapporo (Japan). Materials Science and Engineering
Los Alamos National Lab. (LANL), Los Alamos, NM (United States).
Univ. of Illinois, Urbana, IL (United States). Dept. of Nuclear, Plasma, and Radiological Engineering; Kyushu Univ. (Japan). International Inst. for Carbon Neutral Energy Research (WPI-I2CNER)

Here, in situ ion irradiation and rate theory calculations were employed to directly compare the radiation resistance of an oxide dispersion strengthened alloy with that of a conventional ferritic/martensitic alloy. Compared to the rapid buildup of dislocation loops, loop growth, and formation of network dislocations in the conventional ferritic/martensitic alloy, the superior radiation resistance of the oxide dispersion strengthened alloy is manifested by its stable dislocation structure under the same irradiation conditions. Thus, the results are consistent with rate theory calculations, which show that high-density nanoparticles can significantly reduce freely migrating defects and suppress the buildup of clustered defects.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL)

Sponsoring Organization:: USDOE Office of Nuclear Energy (NE); USDOE Laboratory Directed Research and Development (LDRD), Argonne National Laboratory (ANL); USDOE Office of Nuclear Energy (NE). Nuclear Energy University Program (NEUP)

Grant/Contract Number:: AC52-06NA25396; NE0008291; AC02-06CH11357

OSTI ID:: 1422905

Report Number(s):: LA-UR-18-20960

Journal Information:: Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: C Vol. 148; ISSN 1359-6462

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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