Corrosion resistance of the microarc oxidation coatings prepared on magnesium alloy

被引：0
|
作者：
Lv, Ying [1 ]
Li, Jun Gang [1 ]
Wu, Ming Zhong [1 ]
Ma, Zhen [1 ]
Zhang, Jing Qiang [1 ]
Wang, Le Le [1 ]
机构：
[1] Jiamusi Univ, Sch Mat Sci & Engn, Jiamusi 154007, Peoples R China
来源：
2018 4TH INTERNATIONAL CONFERENCE ON ENERGY MATERIALS AND ENVIRONMENT ENGINEERING (ICEMEE 2018) | 2018年 / 38卷
关键词：
D O I：
10.1051/e3sconf/20183802009
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Ceramic coatings were prepared on the surface of AZ91D magnesium alloy by microarc oxidation technology. The effects of different voltages on morphology, phase composition and thickness of the coatings were characterized by SEM and XRD. The corrosion resistance of the coatings was measured by electrochemical workstation. Results indicated that the microarc oxidation coatings prepared in sodium silicate electrolyte exhibited porous surface and mainly comprised MgO, Mg2SiO4 and a small amount of MgAl2O4. The thickness of the oxide coatings increased rapidly with the increase of voltage. The coating prepared at 400V voltage had good electrochemical corrosion resistance in 3.5wt% NaCl solution.
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页数：3
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