Mechanical properties and corrosion resistance of the fine grain structure of Al-Zn-Mg-Sc alloys fabricated by friction stir processing and post-heat treatment

doi:10.1016/j.msea.2020.139393

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	Mechanical properties and corrosion resistance of the fine grain structure of Al-Zn-Mg-Sc alloys fabricated by friction stir processing and post-heat treatment
	Hou, Y. F.1; Liu, C. Y.1; Zhang, B.2; Wei, L. L.1; Dai, H. T.1; Ma, Z. Y.3
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2020-05-21
卷号	785 页码:11
关键词	Al alloy Friction stir processing Mechanical properties Corrosion resistance
ISSN号	0921-5093
DOI	10.1016/j.msea.2020.139393
通讯作者	Liu, C. Y.(lcy261@glut.edu.cn) ; Zhang, B.(zhangbing@ysu.edu.cn)
英文摘要	In this study, Al-Zn-Mg-Sc alloys with different microstructures were fabricated by friction stir processing (FSP) and different post-heat treatments. The structure with fine equiaxed grains and a high density of eta phases were obtained in the alloys after FSP. Post solid-solution treatment (ST) and artificial aging (AA) led to the eta phases dissolute and eta' phases precipitate in the FSP Al-Zn-Mg-Sc alloys, respectively. The fine grain structure in the high rotation rate FSP alloy can be well retained during heat treatment owing to the grain boundary (GB) pinning effect of nanosized Al-3(Sc,Zr) phases. However, the pining force caused by the Al-3(Sc,Zr) phases did not inhibit the coarsening of the grains in the low rotation rate FSP sample during ST. After AA alone or AA and subsequent ST, the FSP Al-Zn-Mg-Sc alloys exhibited good strength, high ductility, and well corrosion resistance owing to the high densities of their eta' phases and fine grains.
资助项目	National Natural Science Foundation of China[51601045] ; Guangxi Bagui Teams for Innovation and Research
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000536129700029
资助机构	National Natural Science Foundation of China ; Guangxi Bagui Teams for Innovation and Research
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/138913]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, C. Y.; Zhang, B.
作者单位	1.Guilin Univ Technol, Minist Educ, Key Lab New Proc Technol Nonferrous Met & Mat, Guilin 541004, Peoples R China 2.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China 3.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Hou, Y. F.,Liu, C. Y.,Zhang, B.,et al. Mechanical properties and corrosion resistance of the fine grain structure of Al-Zn-Mg-Sc alloys fabricated by friction stir processing and post-heat treatment[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,785:11.
APA	Hou, Y. F.,Liu, C. Y.,Zhang, B.,Wei, L. L.,Dai, H. T.,&Ma, Z. Y..(2020).Mechanical properties and corrosion resistance of the fine grain structure of Al-Zn-Mg-Sc alloys fabricated by friction stir processing and post-heat treatment.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,785,11.
MLA	Hou, Y. F.,et al."Mechanical properties and corrosion resistance of the fine grain structure of Al-Zn-Mg-Sc alloys fabricated by friction stir processing and post-heat treatment".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 785(2020):11.