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Anisotropic strengthening of nanotwin bundles in heterogeneous nanostructured Cu: Effect of deformation compatibility
Zhao, H. Z.1,2; You, Z. S.3; Tao, N. R.1; Lu, L.1
Corresponding AuthorLu, L.(llu@imr.ac.cn)
2021-05-15
Source PublicationACTA MATERIALIA
ISSN1359-6454
Volume210Pages:10
AbstractAnisotropic tensile behaviors of a heterogeneous nanostructured Cu composed of isotropic nanograin ma-trix and anisotropic nanotwin bundles were investigated under loading directions parallel, normal, and 45 degrees inclined to the twin boundaries (TBs). Distinct from the anisotropic strengthening effect in the ho-mogeneous nanotwinned (NT) counterpart, the heterostructure exhibits the highest strength under paral-lel tension, and moderate strength under normal tension. High-resolution digital image correlation anal-ysis indicated an orientation-dependent deformation compatibility between the nanotwin bundles and nanograin matrix, i.e., compatible deformation in the parallel orientation; but significant incompatibility in orientations both normal and 45 degrees inclined to TBs. The results reveal that the strengthening effect of nanotwins in heterogeneous nanostructure is not only dependent on the strength of themselves, but also influenced by the deformation compatibility with surrounding components. The orientation-dependent deformation compatibility was attributed to the interactions between isotropic shear bands in nanograin matrix and anisotropic deformation in nanotwin bundles. (c) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordHeterogeneous nanostructure Anisotropic deformation Nanotwins Strain partitioning Deformation compatibility
Funding OrganizationNational Science Foundation of China (NSFC) ; Key Research Program of Frontier Science and International partnership program, CAS ; LiaoNing Revitalization Talents Program ; National Key R&D Program of China
DOI10.1016/j.actamat.2021.116830
Indexed BySCI
Language英语
Funding ProjectNational Science Foundation of China (NSFC)[U1608257] ; National Science Foundation of China (NSFC)[51931010] ; Key Research Program of Frontier Science and International partnership program, CAS[GJHZ2029] ; LiaoNing Revitalization Talents Program[XLYC1802026] ; National Key R&D Program of China[2017YFA0204403]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000649655000005
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/161172
Collection中国科学院金属研究所
Corresponding AuthorLu, L.
Affiliation1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Nanjing Univ Sci & Technol, Herbert Gleiter Inst Nanosci, Nanjing 210094, Peoples R China
Recommended Citation
GB/T 7714
Zhao, H. Z.,You, Z. S.,Tao, N. R.,et al. Anisotropic strengthening of nanotwin bundles in heterogeneous nanostructured Cu: Effect of deformation compatibility[J]. ACTA MATERIALIA,2021,210:10.
APA Zhao, H. Z.,You, Z. S.,Tao, N. R.,&Lu, L..(2021).Anisotropic strengthening of nanotwin bundles in heterogeneous nanostructured Cu: Effect of deformation compatibility.ACTA MATERIALIA,210,10.
MLA Zhao, H. Z.,et al."Anisotropic strengthening of nanotwin bundles in heterogeneous nanostructured Cu: Effect of deformation compatibility".ACTA MATERIALIA 210(2021):10.
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