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Enhancing co-deformation ability of nanograined Ni-W layers in the Ni/Ni-W laminated composites
Liang, Fei1,2; Wang, Zhe-Xuan3; Luo, Yan-Wen3; Zhang, Bin3; Luo, Xue-Mei1; Zhang, Guang-Ping1
Corresponding AuthorZhang, Bin(zhangb@atm.neu.edu.cn) ; Zhang, Guang-Ping(gpzhang@imr.ac.cn)
2021-09-01
Source PublicationACTA MATERIALIA
ISSN1359-6454
Volume216Pages:14
AbstractTensile properties and plastic deformation behavior of the Ni/Ni-W laminated composites with different thickness ratios of the Ni layer to the Ni-W layer were investigated systematically. Experimental results reveal that the strength/ductility synergy of Ni/Ni-W laminated composites with a large thickness ratio is improved compared with that of monolithic Ni, which is attributed to the enhanced co-deformation ability of the nanograined Ni-W layers with decreasing the Ni-W layer thickness. Ni-W layers with small original layer thickness achieve continuous thinning through the stable grain boundary sliding under the interface constraint. Furthermore, there is an evident transition of the fracture behavior from the coexistence of channel cracks and micro shear bands to micro shear bands for the Ni-W layers with decreasing the Ni-W layer thickness. Finite element simulations show that the decrease of the Ni-W layer thickness leads to the decrease in the sensitivity of the composites to defects, which is corresponding to the reduced stress concentration degree at the crack tip. Based on the energy criterion, the plastic deformation map controlled by the length scale and the flow stress for the Ni-W layers was evaluated. The finding may provide a potential strategy for the design and development of high-performance materials for high-temperature microelectromechanical systems. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordLaminated composites Plastic deformation Shear band Fracture Length scale Interface
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; Fundamental Research Project of Shenyang National Laboratory for Materials Science
DOI10.1016/j.actamat.2021.117138
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[51971060] ; National Natural Science Foundation of China (NSFC)[51771207] ; Fundamental Research Project of Shenyang National Laboratory for Materials Science[L2019R18]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000687492500025
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166822
Collection中国科学院金属研究所
Corresponding AuthorZhang, Bin; Zhang, Guang-Ping
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China
Recommended Citation
GB/T 7714
Liang, Fei,Wang, Zhe-Xuan,Luo, Yan-Wen,et al. Enhancing co-deformation ability of nanograined Ni-W layers in the Ni/Ni-W laminated composites[J]. ACTA MATERIALIA,2021,216:14.
APA Liang, Fei,Wang, Zhe-Xuan,Luo, Yan-Wen,Zhang, Bin,Luo, Xue-Mei,&Zhang, Guang-Ping.(2021).Enhancing co-deformation ability of nanograined Ni-W layers in the Ni/Ni-W laminated composites.ACTA MATERIALIA,216,14.
MLA Liang, Fei,et al."Enhancing co-deformation ability of nanograined Ni-W layers in the Ni/Ni-W laminated composites".ACTA MATERIALIA 216(2021):14.
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