Effect of Sn addition on the microstructure and corrosion behavior of dilute wrought Mg-Zn-Ca series alloys

被引：1
|
作者：
Li, Yi-Jia [1 ,2 ]
Li, Mei-Xuan [1 ,2 ]
Wang, Bing-Yu [1 ,2 ]
Ren, Ming-Wen [1 ,2 ]
Wang, Cheng [1 ,2 ]
Zha, Min [1 ,2 ]
Gao, Yipeng [1 ,2 ,3 ]
Wang, Hui-Yuan [1 ,2 ,3 ,4 ]
机构：
[1] Jilin Univ, Key Lab Automobile Mat, Minist Educ, Nanling Campus,5988 Renmin St, Changchun 130025, Peoples R China
[2] Jilin Univ, Sch Mat Sci & Engn, Nanling Campus,5988 Renmin St, Changchun 130025, Peoples R China
[3] Jilin Univ, Int Ctr Future Sci, Changchun 130012, Peoples R China
[4] Hebei Univ Technol, Sch Mat Sci & Engn, State Key Lab Reliabil & Intelligence Elect Equipm, Tianjin 300130, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 235卷
基金：
中国国家自然科学基金;
关键词：
A; Magnesium; Alloy; Tin; Intermetallics; C. Passive films; C. Pitting corrosion; MECHANICAL-PROPERTIES; MAGNESIUM ALLOY; RESISTANCE; AZ91D; SR;
D O I：
10.1016/j.corsci.2024.112180
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of Sn alloying (0.5, 1.0, 2.0 wt%) on microstructure and corrosion behavior of dilute Mg-2Zn-xSn0.5Ca rolled sheets is illuminated. The corrosion resistance first increases and then decreases with raising Sn content. The alloy with 1 wt% Sn shows the lowest corrosion rate of -2.1 mm/y, decreased by -63 % compared with Sn-free alloy. Although nobler MgSnCa phase is formed after alloying, more protective oxide film containing SnO2 is also formed, which effectively hinders localized corrosion. However, at 2 wt% Sn addition, detrimental effect of MgSnCa overwhelms positive effect of Sn on film, thus deteriorating corrosion resistance.
引用
收藏
页数：15
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