期刊
SCRIPTA MATERIALIA
卷 69, 期 5, 页码 385-388出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2013.05.024
关键词
Radiation damage; In situ irradiation; Nanotwinned Ag; Twin boundary migration
类别
资金
- US Army Research Office - Materials Science Division [W911NF-09-1-0223]
- DOE-NEUP [DE-AC07-05ID14517-00088120]
- NSF-DMR metallic materials and nanostructures program [0644835]
- DOE-BES
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1304101, 0644835] Funding Source: National Science Foundation
Twin boundary migration is usually observed during annealing or plastic deformation. We report on in situ observation of Kr ion irradiation-induced microstructure evolution in epitaxial nanotwinned Ag films with an average twin thickness of 70 nm. Kr ion irradiation-induced defect clusters are absorbed by coherent and incoherent twin boundaries. Frequent interactions between defect clusters and twin boundaries lead to continuous migration of twin boundaries. The potential mechanisms of twin boundary migration are discussed. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
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