Tension-compression fatigue behaviors of uniform and bimodal carbon nanotube/Al-Cu-Mg composites

doi:10.1016/j.matchar.2022.112193

IMR OpenIR

	Tension-compression fatigue behaviors of uniform and bimodal carbon nanotube/Al-Cu-Mg composites
	Ma, K.; Li, X. N.; Zhang, J. F.; Liu, Z. Y.; Xiao, B. L.; Ma, Z. Y.
通讯作者	Liu, Z. Y.(zyliu@imr.ac.cn) ; Xiao, B. L.(blxiao@imr.ac.cn)
	2022-10-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	192 页码:9
摘要	By introducing the ductile-zones (DZs) without carbon nanotubes (CNTs) into the brittle-zones (BZs) containing CNTs, constructing the bimodal structure, can effectively improve the toughness of CNT reinforced Al (CNT/Al) composites. However, to be applied in the field of aerospace, CNT/Al composites will be required to have high toughness, as well as high fatigue strength. At the present study, the fatigue behaviors of uniform and bimodal CNT/Al composites under the tension-compression state with the stress ratio of -1 were investigated. It was found that CNT rich zones could keep grains stable after the fatigue loading. However, for the bimodal CNT/Al composites, the preferential local deformation occurred in the DZs, which resulted in much lower fatigue strength as compared to the uniform composite. By reducing the grain size of DZs to ultra-fine grain (UFG) level, the large number of grain boundaries within the DZs hindered the directional movement of slip bands, which significantly enhanced the fatigue strength and achieved a higher toughness of bimodal CNT/Al composites. This discovery provides a new strategy for the preparation of high performance CNT/Al composites, and the bimodal CNT/Al composite with UFG DZs is expected to be applied in the aerospace field.
关键词	Carbon nanotube Metal matrix composite Bimodal structure Fatigue
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 ; China Scholarship Council
DOI	10.1016/j.matchar.2022.112193
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] ; China Scholarship Council
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:000863167000004
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：2[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/321006/175927
专题	中国科学院金属研究所
通讯作者	Liu, Z. Y.; Xiao, B. L.
作者单位	Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ma, K.,Li, X. N.,Zhang, J. F.,et al. Tension-compression fatigue behaviors of uniform and bimodal carbon nanotube/Al-Cu-Mg composites[J]. MATERIALS CHARACTERIZATION,2022,192:9.
APA	Ma, K.,Li, X. N.,Zhang, J. F.,Liu, Z. Y.,Xiao, B. L.,&Ma, Z. Y..(2022).Tension-compression fatigue behaviors of uniform and bimodal carbon nanotube/Al-Cu-Mg composites.MATERIALS CHARACTERIZATION,192,9.
MLA	Ma, K.,et al."Tension-compression fatigue behaviors of uniform and bimodal carbon nanotube/Al-Cu-Mg composites".MATERIALS CHARACTERIZATION 192(2022):9.