<p>Anisotropic toughening of nanotwin bundles in the heterogeneous nanostructured Cu & nbsp;</p>

doi:10.1016/j.actamat.2022.117748

CORC > 金属研究所 > 中国科学院金属研究所

	Anisotropic toughening of nanotwin bundles in the heterogeneous nanostructured Cu & nbsp;
	Zhao, H. Z.1,2; You, Z. S.3; Tao, N. R.1; Lu, L.1
刊名	ACTA MATERIALIA
	2022-04-15
卷号	228 页码:11
关键词	Heterogeneous nanostructure Nanotwins Anisotropic toughening Crack deflection Strength-toughness synergy
ISSN号	1359-6454
DOI	10.1016/j.actamat.2022.117748
通讯作者	Lu, L.(llu@imr.ac.cn)
英文摘要	In the first report [H.Z. Zhao, Z.S. You, N.R. Tao, L. Lu, Acta Mater. 210 (2021) 116830] , anisotropic strengthening of nanotwin bundles in the heterogeneous nanostructured (HNS) Cu was investigated from the perspective of deformation compatibility. To further understand their toughening mechanism, the anisotropic fracture behaviors of this HNS Cu with preferentially oriented nanotwins and elongated nanograins are investigated in this paper. Depending on the orientations of the crack planes relative to the nanotwin bundles (or the alignment of elongated nanograins), the HNS Cu shows a distinctly anisotropic fracture behavior. When both the crack plane and crack growth direction are perpendicular to the nanotwin bundles, HNS Cu exhibits the highest fracture toughness (J(IC)), which is approximately three times higher than that of the case where both crack plane and crack growth direction are parallel to the nanotwin bundles. This orientation-dependent fracture toughness is attributed to the anisotropic toughening of the nanotwin bundles and the crack deflection caused by the elongated nanograins. (C) 2022 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.& nbsp;& nbsp;
资助项目	National Science Foundation of China (NSFC)[51931010] ; National Science Foundation of China (NSFC)[92163202] ; Key Research Program of Frontier Science and International partnership program[GJHZ2029] ; CAS, and LiaoNing Revitalization Talents Program[XLYC1802026] ; National Key R&D Program of China[2017YFA0204403]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000789648400007
资助机构	National Science Foundation of China (NSFC) ; Key Research Program of Frontier Science and International partnership program ; CAS, and LiaoNing Revitalization Talents Program ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/172521]
专题	金属研究所_中国科学院金属研究所
通讯作者	Lu, L.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 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
推荐引用方式 GB/T 7714	Zhao, H. Z.,You, Z. S.,Tao, N. R.,et al. Anisotropic toughening of nanotwin bundles in the heterogeneous nanostructured Cu & nbsp; [J]. ACTA MATERIALIA,2022,228:11.
APA	Zhao, H. Z.,You, Z. S.,Tao, N. R.,&Lu, L..(2022). Anisotropic toughening of nanotwin bundles in the heterogeneous nanostructured Cu & nbsp; .ACTA MATERIALIA,228,11.
MLA	Zhao, H. Z.,et al." Anisotropic toughening of nanotwin bundles in the heterogeneous nanostructured Cu & nbsp; ".ACTA MATERIALIA 228(2022):11.