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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
Corresponding AuthorLiu, C. Y.(lcy261@glut.edu.cn) ; Zhang, B.(zhangbing@ysu.edu.cn)
2020-05-21
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume785Pages:11
AbstractIn 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.
KeywordAl alloy Friction stir processing Mechanical properties Corrosion resistance
Funding OrganizationNational Natural Science Foundation of China ; Guangxi Bagui Teams for Innovation and Research
DOI10.1016/j.msea.2020.139393
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51601045] ; Guangxi Bagui Teams for Innovation and Research
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000536129700029
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138914
Collection中国科学院金属研究所
Corresponding AuthorLiu, C. Y.; Zhang, B.
Affiliation1.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
Recommended Citation
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.
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