Microstructure and corrosion behavior of Mg-Sc binary alloys in 3.5 wt.% NaCl solution

被引：111
|
作者：
Zhang, Cheng [1 ,2 ]
Wu, Liang [1 ,2 ]
Liu, Han [1 ,2 ]
Huang, Guangsheng [1 ,2 ]
Jiang, Bin [1 ,2 ]
Atrens, Andrej [3 ]
Pan, Fusheng [1 ,2 ]
机构：
[1] Chongqing Univ, Coll Mat Sci & Engn, State Key Lab Mech Transmiss, Chongqing 400044, Peoples R China
[2] Chongqing Univ, Natl Engn Res Ctr Magnesium Alloys, Chongqing 400044, Peoples R China
[3] Univ Queensland, Sch Mech & Min Engn, Brisbane, Qld 4072, Australia
来源：
CORROSION SCIENCE | 2020年 / 174卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Mg; Sc; Single-phase; Microstructure; Corrosion; MECHANICAL-PROPERTIES; MAGNESIUM ALLOYS; BIOCOMPATIBILITY; DEFORMATION; ZN; DEGRADATION; ADDITIONS; TEXTURE; AL;
D O I：
10.1016/j.corsci.2020.108831
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper studied the microstructure and corrosion behavior of Mg-xSc binary alloy (x = 0.1-1.5 wt.%) sheets. Sc has a significant effect of refining grains of Mg. The Mg-Sc binary alloys had a single-phase microstructure for Sc concentrations between 0.1 - 0.3 wt.%, while there were Mg-Sc precipitates for higher Sc concentrations. The Sc additions obviously improved the corrosion resistance of pure Mg due to the refinement of microstructure and the formation of a more protective corrosion products film. The corrosion rate firstly decreased and then increased with increasing Sc concentration. Mg-0.3Sc has the lowest corrosion rate.
引用
收藏
页数：12
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