Effects of trace Ca/Sn addition on corrosion behaviors of biodegradable Mg-4Zn-0.2Mn alloy

被引：59
|
作者：
Du, Wenbo [1 ]
Liu, Ke [1 ]
Ma, Ke [1 ]
Wang, Zhaohui [1 ]
Li, Shubo [1 ]
机构：
[1] Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
来源：
JOURNAL OF MAGNESIUM AND ALLOYS | 2018年 / 6卷 / 01期
基金：
北京市自然科学基金;
关键词：
Mg-Zn-Mn alloy; Corrosion behaviors; Hank's physiological solution; Electrochemical test; GLASS-FORMING ABILITY; IN-VITRO CORROSION; MECHANICAL-PROPERTIES; MAGNESIUM ALLOYS; HEAT-TREATMENT; DEGRADATION BEHAVIOR; VIVO CORROSION; BINARY-ALLOYS; AS-CAST; ZN;
D O I：
10.1016/j.jma.2018.01.004
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effects of alloying elements of Ca/Sn on corrosion behaviors of the as-cast Mg-4Zn-0.2Mn alloy were investigated by immersion tests and electrochemical methods. The results indicated that the average corrosion rate value of the Mg-4Zn-0.2Mn-Ca alloy was similar to 0.31 mm/year in Hank's physiological solution for 40 days, and corrosion resistance increased for the specimens containing Ca element rather than that containing Sn because of the higher breakdown potential value, lower current density and deactivated corrosion rate, which was ascribed to a formation of the uniformly distributed Mg-Zn-Ca ternary phase. (C) 2018 Published by Elsevier B.V. on behalf of Chongqing University.
引用
收藏
页码：1 / 14
页数：14
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