Enhanced strength-ductility synergy of carbon nanotube/Al-Cu-Mg composites via introducing laminate structure and grain modification

doi:10.1016/j.compositesb.2022.110178

IMR OpenIR

	Enhanced strength-ductility synergy of carbon nanotube/Al-Cu-Mg composites via introducing laminate structure and grain modification
	Li, P. Y.1,2; Li, X. N.2; Liu, Z. Y.2; Chen, L. Q.1; Xiao, B. L.2; Ma, Z. Y.2
通讯作者	Liu, Z. Y.(zyliu@imr.ac.cn)
	2022-08-15
发表期刊	COMPOSITES PART B-ENGINEERING
ISSN	1359-8368
卷号	243 页码:10
摘要	Laminate carbon nanotube (CNT)/Al-Cu-Mg composites consisting of alternate ductile layers (coarse or ultrafine grain Al) free of CNTs and brittle layers (ultrafine grain) rich in CNTs, were prepared in the powder metallurgy route. It was found that the strength-ductility of the composites was improved remarkably, as compared with those of uniform composites. Mechanical incompatibility between different layers during tensile deformation produced a large number of geometrically necessary dislocations (GNDs) between the ductile layers and the brittle layers, which inhibited the strain localization, thereby enhancing the strength-ductility. Compared with the laminate composite using the coarse grain Al as the ductile layers, the strength of the laminate composite using ultrafine grain Al as ductile layers further increased by 14%, while the elongation remained unchanged. This was because the ultrafine grain rather than coarse grain of the ductile layers could lead to higher strength and had better coordination with the brittle layers.
关键词	Carbon nanotubes Metal-matrix composite Laminate Mechanical property
资助者	National Natural Science Foundation of China ; Liao Ning Revitalization Talents Program ; Shenyang young and middle-aged scientific and technological innovation talents support plan ; Youth Innovation Promotion Association CAS
DOI	10.1016/j.compositesb.2022.110178
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51931009] ; National Natural Science Foundation of China[52192595] ; National Natural Science Foundation of China[51871215] ; National Natural Science Foundation of China[51871214] ; Liao Ning Revitalization Talents Program[XLYC1902058] ; Shenyang young and middle-aged scientific and technological innovation talents support plan[RC210490] ; Youth Innovation Promotion Association CAS[2020197]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Multidisciplinary ; Materials Science, Composites
WOS记录号	WOS:000862295500001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：30[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/321006/175850
专题	中国科学院金属研究所
通讯作者	Liu, Z. Y.
作者单位	1.Northeastern Univ, State Key Lab Rolling & Automat, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, P. Y.,Li, X. N.,Liu, Z. Y.,et al. Enhanced strength-ductility synergy of carbon nanotube/Al-Cu-Mg composites via introducing laminate structure and grain modification[J]. COMPOSITES PART B-ENGINEERING,2022,243:10.
APA	Li, P. Y.,Li, X. N.,Liu, Z. Y.,Chen, L. Q.,Xiao, B. L.,&Ma, Z. Y..(2022).Enhanced strength-ductility synergy of carbon nanotube/Al-Cu-Mg composites via introducing laminate structure and grain modification.COMPOSITES PART B-ENGINEERING,243,10.
MLA	Li, P. Y.,et al."Enhanced strength-ductility synergy of carbon nanotube/Al-Cu-Mg composites via introducing laminate structure and grain modification".COMPOSITES PART B-ENGINEERING 243(2022):10.