Predicting structural material degradation in advanced nuclear reactors with ion irradiation

Abstract Swelling associated with the formation and growth of cavities is among the most damaging of radiation-induced degradation modes for structural materials in advanced nuclear reactor concepts. Ion irradiation has emerged as the only practical option to rapidly assess swelling in candidate mat...

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Autores principales:	Stephen Taller, Gerrit VanCoevering, Brian D. Wirth, Gary S. Was
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b0dac1afc95c4188802f6be71d69079c
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spelling	oai:doaj.org-article:b0dac1afc95c4188802f6be71d69079c2021-12-02T14:06:49ZPredicting structural material degradation in advanced nuclear reactors with ion irradiation10.1038/s41598-021-82512-w2045-2322https://doaj.org/article/b0dac1afc95c4188802f6be71d69079c2021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82512-whttps://doaj.org/toc/2045-2322Abstract Swelling associated with the formation and growth of cavities is among the most damaging of radiation-induced degradation modes for structural materials in advanced nuclear reactor concepts. Ion irradiation has emerged as the only practical option to rapidly assess swelling in candidate materials. For decades, researchers have tried to simulate the harsh environment in a nuclear reactor in the laboratory at an accelerated rate. Here we present the first case in which swelling in a candidate alloy irradiated ~ 2 years in a nuclear reactor was replicated using dual ion irradiation in ~ 1 day with precise control over damage rate, helium injection rate, and temperature and utilize physical models to predict the effects of radiation in reactors. The capability to predict and replicate the complex processes surrounding cavity nucleation and growth across many decades of radiation dose rate highlights the potential of accelerated radiation damage experiments. More importantly, it demonstrates the capability to predict the swelling evolution and the possibility to predict other features of the irradiated microstructure evolution that control material property degradation required to accelerate the development of new, radiation-tolerant materials.Stephen TallerGerrit VanCoeveringBrian D. WirthGary S. WasNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Stephen Taller Gerrit VanCoevering Brian D. Wirth Gary S. Was Predicting structural material degradation in advanced nuclear reactors with ion irradiation
description	Abstract Swelling associated with the formation and growth of cavities is among the most damaging of radiation-induced degradation modes for structural materials in advanced nuclear reactor concepts. Ion irradiation has emerged as the only practical option to rapidly assess swelling in candidate materials. For decades, researchers have tried to simulate the harsh environment in a nuclear reactor in the laboratory at an accelerated rate. Here we present the first case in which swelling in a candidate alloy irradiated ~ 2 years in a nuclear reactor was replicated using dual ion irradiation in ~ 1 day with precise control over damage rate, helium injection rate, and temperature and utilize physical models to predict the effects of radiation in reactors. The capability to predict and replicate the complex processes surrounding cavity nucleation and growth across many decades of radiation dose rate highlights the potential of accelerated radiation damage experiments. More importantly, it demonstrates the capability to predict the swelling evolution and the possibility to predict other features of the irradiated microstructure evolution that control material property degradation required to accelerate the development of new, radiation-tolerant materials.
format	article
author	Stephen Taller Gerrit VanCoevering Brian D. Wirth Gary S. Was
author_facet	Stephen Taller Gerrit VanCoevering Brian D. Wirth Gary S. Was
author_sort	Stephen Taller
title	Predicting structural material degradation in advanced nuclear reactors with ion irradiation
title_short	Predicting structural material degradation in advanced nuclear reactors with ion irradiation
title_full	Predicting structural material degradation in advanced nuclear reactors with ion irradiation
title_fullStr	Predicting structural material degradation in advanced nuclear reactors with ion irradiation
title_full_unstemmed	Predicting structural material degradation in advanced nuclear reactors with ion irradiation
title_sort	predicting structural material degradation in advanced nuclear reactors with ion irradiation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b0dac1afc95c4188802f6be71d69079c
work_keys_str_mv	AT stephentaller predictingstructuralmaterialdegradationinadvancednuclearreactorswithionirradiation AT gerritvancoevering predictingstructuralmaterialdegradationinadvancednuclearreactorswithionirradiation AT briandwirth predictingstructuralmaterialdegradationinadvancednuclearreactorswithionirradiation AT garyswas predictingstructuralmaterialdegradationinadvancednuclearreactorswithionirradiation
_version_	1718391983683141632

Predicting structural material degradation in advanced nuclear reactors with ion irradiation

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