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

IMR OpenIR

	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
通讯作者	Liu, C. Y.(lcy261@glut.edu.cn) ; Zhang, B.(zhangbing@ysu.edu.cn)
	2020-05-21
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	785 页码:11
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.
关键词	Al alloy Friction stir processing Mechanical properties Corrosion resistance
资助者	National Natural Science Foundation of China ; Guangxi Bagui Teams for Innovation and Research
DOI	10.1016/j.msea.2020.139393
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
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000536129700029
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：20[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/321006/138914
专题	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.