Radiation resistance of oxide dispersion strengthened alloys: Perspectives from in situ observations and rate theory calculations
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.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy - Nuclear Energy University Programs (NEUP)
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1461549
- Journal Information:
- Scripta Materialia, Vol. 148, Issue C; ISSN 1359-6462
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
Influence of Al Addition Strategy on the Microstructure of a Low‐Cr Oxide Dispersion‐Strengthened Ferritic Steel
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journal | December 2019 |
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