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Influence of temperature on the strain rate sensitivity and deformation mechanisms of nanotwinned Cu
Yang, L. W.1; Wang, C. Y.1; Monclus, M. A.1; Lu, L.2; Molina-Aldareguia, J. M.1; Llorca, J.1,3
Corresponding AuthorMolina-Aldareguia, J. M.(jon.molina@imdea.org) ; Llorca, J.(javier.llorca@imdea.org)
2018-09-01
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume154Pages:54-59
AbstractThe mechanical behavior of nanotwinned Cu was studied through indentation creep and constant strain rate indentation tests from 25 degrees C to 200 degrees C. The results showed an enhanced strain rate sensitivity of nanotwinned Cu with temperature, which was higher than that found in coarse-grained Cu. Transmission electron microscopy revealed the same deformation mechanism in the whole temperature range: confined dislocation slip between coherent twin boundaries and formation of dislocation pile-ups at the coherent twin boundaries. The mechanisms responsible for large increase in strain rate sensitivity of nanotwinned Cu with temperature were discussed to the light of experimental observations. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordNano twinned Cu Indentation High temperature deformation Strain rate sensitivity
Funding OrganizationEuropean Research Council (ERC) under the EU ; China Scholarship Council
DOI10.1016/j.scriptamat.2018.05.018
Indexed BySCI
Language英语
Funding ProjectEuropean Research Council (ERC) under the EU[669141] ; China Scholarship Council[201306110007] ; China Scholarship Council[201406290011]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000440775000012
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129038
Collection中国科学院金属研究所
Corresponding AuthorMolina-Aldareguia, J. M.; Llorca, J.
Affiliation1.IMDEA Mat Inst, C Eric Kandel 2, Madrid 28906, Spain
2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
3.Univ Politecn Madrid, Dept Mat Sci, ETS Ingenieros Caminos, Madrid 28040, Spain
Recommended Citation
GB/T 7714
Yang, L. W.,Wang, C. Y.,Monclus, M. A.,et al. Influence of temperature on the strain rate sensitivity and deformation mechanisms of nanotwinned Cu[J]. SCRIPTA MATERIALIA,2018,154:54-59.
APA Yang, L. W.,Wang, C. Y.,Monclus, M. A.,Lu, L.,Molina-Aldareguia, J. M.,&Llorca, J..(2018).Influence of temperature on the strain rate sensitivity and deformation mechanisms of nanotwinned Cu.SCRIPTA MATERIALIA,154,54-59.
MLA Yang, L. W.,et al."Influence of temperature on the strain rate sensitivity and deformation mechanisms of nanotwinned Cu".SCRIPTA MATERIALIA 154(2018):54-59.
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