skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

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

Abstract

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. 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. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy - Nuclear Energy University Programs (NEUP)
OSTI Identifier:
1461549
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Scripta Materialia
Additional Journal Information:
Journal Volume: 148; Journal Issue: C; Journal ID: ISSN 1359-6462
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
dislocation structure; microstructure; oxide dispersion strengthened (ODS) alloy; radiation enhanced diffusion (RED); transmission electron microscopy

Citation Formats

Liu, Xiang, Miao, Yinbin, Li, Meimei, Kirk, Marquis A., Zhang, Guangming, Ukai, Shigeharu, Maloy, Stuart A., and Stubbins, James F. Radiation resistance of oxide dispersion strengthened alloys: Perspectives from in situ observations and rate theory calculations. United States: N. p., 2018. Web. doi:10.1016/j.scriptamat.2018.01.018.
Liu, Xiang, Miao, Yinbin, Li, Meimei, Kirk, Marquis A., Zhang, Guangming, Ukai, Shigeharu, Maloy, Stuart A., & Stubbins, James F. Radiation resistance of oxide dispersion strengthened alloys: Perspectives from in situ observations and rate theory calculations. United States. doi:10.1016/j.scriptamat.2018.01.018.
Liu, Xiang, Miao, Yinbin, Li, Meimei, Kirk, Marquis A., Zhang, Guangming, Ukai, Shigeharu, Maloy, Stuart A., and Stubbins, James F. Sun . "Radiation resistance of oxide dispersion strengthened alloys: Perspectives from in situ observations and rate theory calculations". United States. doi:10.1016/j.scriptamat.2018.01.018.
@article{osti_1461549,
title = {Radiation resistance of oxide dispersion strengthened alloys: Perspectives from in situ observations and rate theory calculations},
author = {Liu, Xiang and Miao, Yinbin and Li, Meimei and Kirk, Marquis A. and Zhang, Guangming and Ukai, Shigeharu and Maloy, Stuart A. and Stubbins, James F.},
abstractNote = {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. 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. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.},
doi = {10.1016/j.scriptamat.2018.01.018},
journal = {Scripta Materialia},
issn = {1359-6462},
number = C,
volume = 148,
place = {United States},
year = {2018},
month = {4}
}