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Journal article
Grain boundary strain as a determinant of localized sink efficiency
Acta materialia, v 226, 117624
08 Jan 2022
Abstract
The opportunity to achieve radiation tolerance in crystalline materials hinges on understanding the structure and response of grain boundary sinks to irradiation. A common descriptor of grain boundary efficiency as a defect sink is the denuded zone, which is a defect free zone adjacent to the grain boundary dictated by its ability to absorb radiation induced defects. This descriptor is often used at the mesoscale, which requires an averaging of absorption events. In this paper, we resolve the defect sink efficiency as a function of interfacial strain with respect to grain boundary character, and correlate high levels of grain boundary strain to an enhanced absorption efficiency. Here, we also introduce a key relationship between localized strain in proximity with the grain boundary sink and the variation absorption efficiency associated with these regions, revealing the pitfalls of averaging absorption events along a grain boundary, and presenting a path forward toward improved models for denuded zones and localized grain boundary absorption phenomena.
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Details
- Title
- Grain boundary strain as a determinant of localized sink efficiency
- Creators
- James E Nathaniel II - Drexel UniversityPranav K. Suri - Drexel UniversityEmily M. Hopkins - Johns Hopkins UniversityJianguo Wen - Argonne National Lab. (ANL), Lemont, IL (United States)Peter Baldo - Argonne National Lab. (ANL), Lemont, IL (United States)Marquis Kirk - Argonne National LaboratoryMitra L. Taheri - Johns Hopkins Univ., Baltimore, MD (United States)] (ORCID:0000000153491411
- Publication Details
- Acta materialia, v 226, 117624
- Publisher
- Elsevier
- Number of pages
- 9
- Grant note
- U.S. Department of Energy , Office of Basic Energy Sciences: DE-SC0020314 U.S. Department of Energy , Office of Science, Office of Basic Energy Sciences: DE-AC02-06CH11357 U.S. Department of Energy (DOE): DE-SC0020314
M.L.T., E.M.H. and J.E.N. acknowledge funding from the U.S. Department of Energy , Office of Basic Energy Sciences, through con-tract DE-SC0020314, and in part under grant DE-SC0008274 (M.L.T. and P.K.S.) . Use of the Center for Nanoscale Materials, an Office of Science user facility, was supported by the U.S. Department of Energy , Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. Authors acknowledge Dr. Chang-Yu Hung of Johns Hopkins University for helpful discussions.
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000789629800005
- Scopus ID
- 2-s2.0-85122830698
- Other Identifier
- 991021861295704721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Metallurgy & Metallurgical Engineering