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Effect of micro-alloying element La on corrosion behavior of Al-Mg-Si alloys
Zheng, Qiuju1,2; Wu, Jing2,3; Jiang, Hongxiang1; Zhang, Lili1; Zhao, Jiuzhou1,2; He, Jie1,2
Corresponding AuthorJiang, Hongxiang(hxjiang@imr.ac.cn) ; Zhao, Jiuzhou(jzzhao@imr.ac.cn)
2021-02-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume179Pages:10
AbstractThe effect of micro-alloying element La on the corrosion behavior of Al-Mg-Si alloys in 3.5 wt. % NaCl solution was investigated. The results demonstrate that micro-alloying La causes the formation of a microstructure with discrete short-rod like Si particles and Mg2Si particles with a La-rich surface shell. The La-rich shell slows down the dissolution of the Mg2Si particles and mitigates the localized corrosion around the Mg2Si particles. The isolated Si particles hinder the corrosion propagation along grain boundaries. As a result, micro-alloying element La causes a significant improvement in the corrosion resistance of Al-Mg-Si alloys.
KeywordAluminum Rare earth elements Polarization Pitting corrosion
Funding OrganizationNational Natural Science Foundation of China ; Chinese Academy of Sciences Strategic Priority Program on Space Science ; Science and technology project of the headquarters of SGCC ; Science and Technology Project of Fujian Province
DOI10.1016/j.corsci.2020.109113
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51771210] ; National Natural Science Foundation of China[51971227] ; National Natural Science Foundation of China[51901231] ; Chinese Academy of Sciences Strategic Priority Program on Space Science[XDA15013800] ; Science and technology project of the headquarters of SGCC[5500201924129A-0-0-00] ; Science and Technology Project of Fujian Province[2018T3001]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000606771400002
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/158991
Collection中国科学院金属研究所
Corresponding AuthorJiang, Hongxiang; Zhao, Jiuzhou
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Qiuju,Wu, Jing,Jiang, Hongxiang,et al. Effect of micro-alloying element La on corrosion behavior of Al-Mg-Si alloys[J]. CORROSION SCIENCE,2021,179:10.
APA Zheng, Qiuju,Wu, Jing,Jiang, Hongxiang,Zhang, Lili,Zhao, Jiuzhou,&He, Jie.(2021).Effect of micro-alloying element La on corrosion behavior of Al-Mg-Si alloys.CORROSION SCIENCE,179,10.
MLA Zheng, Qiuju,et al."Effect of micro-alloying element La on corrosion behavior of Al-Mg-Si alloys".CORROSION SCIENCE 179(2021):10.
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