Effect of Sc addition, friction stir processing, and T6 treatment on the damping and mechanical properties of 7055 Al alloy

doi:10.1016/j.jallcom.2018.09.109

IMR OpenIR

	Effect of Sc addition, friction stir processing, and T6 treatment on the damping and mechanical properties of 7055 Al alloy
	Liu, C. Y.1,2; Zhang, B.3; Ma, Z. Y.1; Jiang, H. J.2; Zhou, W. B.4
通讯作者	Ma, Z. Y.(zyma@imr.ac.cn)
	2019-01-25
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	772 页码:775-781
摘要	Sc addition, friction stir processing (FSP), and subsequent solid-solution treatment and aging to peak hardness (T6 treatment) were applied on a 7055 Al alloy. Fine equiaxed grains were obtained after FSP, and the size of the grains was further refined by minor Sc addition. Subsequent solid-solution treatment led to the dissolution of eta phase, and aging led to the precipitation of eta' phase in the FSP samples. The Al-3(Sc,Zr) particles effectively inhibited the grain coarsening in the Sc-containing FSP sample during the T6 process. Thus, a high density of eta' phase and a fine equiaxed grain structure were obtained in the Sc-containing 7055 alloy after FSP and T6 treatment. The special structure endowed this alloy with higher yield strength than the T6 treated 7055 alloy. FSP enhanced the high-temperature internal friction value of the Sc-containing 7055 alloy, and subsequent T6 treatment did not significantly reduce the value. The Sc-containing 7055 alloy exhibited greater high-temperature internal friction value than the T6 samples and the 7055 alloy fabricated using the same processing route. (C) 2018 Elsevier B.V. All rights reserved.
关键词	Al alloy Microstructure Damping capacity Mechanical properties
资助者	National Natural Science Foundation of China ; Guangxi Bagui Teams for Innovation and Research ; Guangxi Natural Science Foundation ; Science and Technology Major Project of Guangxi
DOI	10.1016/j.jallcom.2018.09.109
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51601045] ; Guangxi Bagui Teams for Innovation and Research ; Guangxi Natural Science Foundation[2016GXNSFDA380028] ; Science and Technology Major Project of Guangxi[GKAA17202007]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000449651100093
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：36[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/321006/130233
专题	中国科学院金属研究所
通讯作者	Ma, Z. Y.
作者单位	1.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Guilin Univ Technol, Key Lab New Proc Technol Nonferrous Met & Mat, Minist Educ, Guilin 541004, Peoples R China 3.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China 4.Guangxi Pingguo Baikuang High Tech Aluminum Co LT, Pingguo 531400, Peoples R China
推荐引用方式 GB/T 7714	Liu, C. Y.,Zhang, B.,Ma, Z. Y.,et al. Effect of Sc addition, friction stir processing, and T6 treatment on the damping and mechanical properties of 7055 Al alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,772:775-781.
APA	Liu, C. Y.,Zhang, B.,Ma, Z. Y.,Jiang, H. J.,&Zhou, W. B..(2019).Effect of Sc addition, friction stir processing, and T6 treatment on the damping and mechanical properties of 7055 Al alloy.JOURNAL OF ALLOYS AND COMPOUNDS,772,775-781.
MLA	Liu, C. Y.,et al."Effect of Sc addition, friction stir processing, and T6 treatment on the damping and mechanical properties of 7055 Al alloy".JOURNAL OF ALLOYS AND COMPOUNDS 772(2019):775-781.