Hot deformation behavior and microstructure evolution of carbon nanotube/7055Al composite

doi:10.1016/j.jallcom.2020.157275

CORC > 金属研究所 > 中国科学院金属研究所

	Hot deformation behavior and microstructure evolution of carbon nanotube/7055Al composite
	Ma, K.1,2; Liu, Z. Y.1; Zhang, X. X.1; Xiao, B. L.1; Ma, Z. Y.1,3
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2021-02-15
卷号	854 页码:10
关键词	Carbon nanotube Aluminum matrix composite Hot deformation Abnormal grain growth
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2020.157275
通讯作者	Liu, Z. Y.(zyliu@imr.ac.cn) ; Xiao, B. L.(blxiao@imr.ac.cn)
英文摘要	In this study, carbon nanotube (CNT) reinforced 7055Al composite was fabricated by high energy ball milling combined with powder metallurgy. The as hot-pressed composite had an inhomogeneous microstructure composed of coarse grains without CNTs and fine grains with uniformly dispersed CNTs. Processing maps were established and the hot deformation behavior as well as the microstructure evolution during deformation was investigated. It was indicated that the power dissipation efficiency of the composite was relatively lower at higher deformation temperature or lower strain rate. Abnormal grain growth (AGG) and cracking occurred when the composite was deformed at high temperature with low strain rate. A few of CNTs were embedded into coarse grains as AGG occurred, and the micro-cracks formed at the boundaries between the coarse and the fine grained zones. The cracking mechanism was considered as the stress concentration caused by the dragging effect of CNTs, and the reduced critical stress required for pore nucleation due to AGG at the boundaries between the coarse and the fine grained zones. (C) 2020 Elsevier B.V. All rights reserved.
资助项目	Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-JSC015] ; National Key R&D Program of China[2017YFB0703104] ; National Natural Science Foundation of China[51931009] ; National Natural Science Foundation of China[51871214] ; National Natural Science Foundation of China[51871215] ; Youth Innovation Promotion Association CAS[2020197] ; Guangxi Natural Science Foundation[2016GXNSFDA380028]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000596245900012
资助机构	Key Research Program of Frontier Sciences, CAS ; National Key R&D Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Guangxi Natural Science Foundation
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/158777]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Z. Y.; Xiao, B. L.
作者单位	1.Chinese Acad Sci, Shichangxu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Guilin Univ Technol, Key Lab New Proc Technol Nonferrous Met & Mat, Minist Educ, Guilin 541004, Peoples R China
推荐引用方式 GB/T 7714	Ma, K.,Liu, Z. Y.,Zhang, X. X.,et al. Hot deformation behavior and microstructure evolution of carbon nanotube/7055Al composite[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,854:10.
APA	Ma, K.,Liu, Z. Y.,Zhang, X. X.,Xiao, B. L.,&Ma, Z. Y..(2021).Hot deformation behavior and microstructure evolution of carbon nanotube/7055Al composite.JOURNAL OF ALLOYS AND COMPOUNDS,854,10.
MLA	Ma, K.,et al."Hot deformation behavior and microstructure evolution of carbon nanotube/7055Al composite".JOURNAL OF ALLOYS AND COMPOUNDS 854(2021):10.