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Influences of the quantity of Mg2Sn phase on the corrosion behavior of Mg-7Sn magnesium alloy
Liu, Xianbin; Shan, Dayong; Song, Yingwei; Chen, Rongshi; Han, Enhou
Corresponding AuthorShan, Dayong(dyshan@imr.ac.cn)
2011-02-01
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume56Issue:5Pages:2582-2590
AbstractThe influence of the quantity of the Mg2Sn phase on the corrosion behavior of different solution temperature treated Mg-7Sn magnesium alloy has been investigated by electrochemical measurements, scanning electron microscope (SEM) observation, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analysis. With the increase of solution temperature, the quantity of Mg2Sn phase decreased and the tin concentration of matrix increased. The dissolved tin in Mg matrix took part in the film formation and the constituent of film was magnesium oxide and stannic oxide. The corrosion mode and corrosion rate were associated with the quantity of Mg2Sn phases and tin concentration of the matrix. If most of tin was present as Mg2Sn, the corrosion mode was pitting corrosion and it accelerated the corrosion rate. If most of tin was dissolved in matrix, the corrosion mode was filiform corrosion and it decreased the corrosion rate. The experiment evidences demonstrated that the corrosion resistance can be improved by increasing the tin concentration of matrix and the lowest corrosion rate was observed for sample solution treated at 540 degrees C. (C) 2010 Elsevier Ltd. All rights reserved.
KeywordMg2Sn phase Mg-7Sn alloy Corrosion mode Solution temperature Stannic oxide
Funding OrganizationNational Basic Research Program of China
DOI10.1016/j.electacta.2010.12.030
Indexed BySCI
Language英语
Funding ProjectNational Basic Research Program of China[2007CB613705]
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000288227800094
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:88[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/104596
Collection中国科学院金属研究所
Corresponding AuthorShan, Dayong
AffiliationChinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Liu, Xianbin,Shan, Dayong,Song, Yingwei,et al. Influences of the quantity of Mg2Sn phase on the corrosion behavior of Mg-7Sn magnesium alloy[J]. ELECTROCHIMICA ACTA,2011,56(5):2582-2590.
APA Liu, Xianbin,Shan, Dayong,Song, Yingwei,Chen, Rongshi,&Han, Enhou.(2011).Influences of the quantity of Mg2Sn phase on the corrosion behavior of Mg-7Sn magnesium alloy.ELECTROCHIMICA ACTA,56(5),2582-2590.
MLA Liu, Xianbin,et al."Influences of the quantity of Mg2Sn phase on the corrosion behavior of Mg-7Sn magnesium alloy".ELECTROCHIMICA ACTA 56.5(2011):2582-2590.
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