Achieving strength-ductility synergy by tailoring the domain size of ultrafine structures in heterostructured Cu

doi:10.1016/j.scriptamat.2024.115992

IMR OpenIR

	Achieving strength-ductility synergy by tailoring the domain size of ultrafine structures in heterostructured Cu
	Ding, F. Z.1,2; Han, P. C.1; Tao, N. R.1
通讯作者	Han, P. C.(pchan17s@imr.ac.cn) ; Tao, N. R.(nrtao@imr.ac.cn)
	2024-04-01
发表期刊	SCRIPTA MATERIALIA
ISSN	1359-6462
卷号	243 页码:5
摘要	The improvement of strength in the heterostructures consisting of ultrafine structures and coarse grains is generally achieved by tailoring the volume fraction of ultrafine structures, but this comes at the expense of ductility. In this work, we succeeded in maintaining the volume fraction of ultrafine structures in heterostructured Cu while tailoring their domain sizes. Interestingly, reducing the domain size of the ultrafine structures from -38 mu m to -20 mu m increases the yield strength of the heterostructured Cu by -40% without sacrificing any uniform elongation. The synergy of strength and ductility results from the additional heterointerfaces induced by smaller domains, which could accumulate more geometrically necessary dislocations to provide extra strength.
关键词	Heterostructure Copper Interface Strength Ductility
资助者	National Natural Science Foundation
DOI	10.1016/j.scriptamat.2024.115992
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001170937700001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/184452
专题	中国科学院金属研究所
通讯作者	Han, P. C.; Tao, N. R.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ding, F. Z.,Han, P. C.,Tao, N. R.. Achieving strength-ductility synergy by tailoring the domain size of ultrafine structures in heterostructured Cu[J]. SCRIPTA MATERIALIA,2024,243:5.
APA	Ding, F. Z.,Han, P. C.,&Tao, N. R..(2024).Achieving strength-ductility synergy by tailoring the domain size of ultrafine structures in heterostructured Cu.SCRIPTA MATERIALIA,243,5.
MLA	Ding, F. Z.,et al."Achieving strength-ductility synergy by tailoring the domain size of ultrafine structures in heterostructured Cu".SCRIPTA MATERIALIA 243(2024):5.