Influence of temperature and chloride ion concentration on the corrosion behaviour of Mg-4Al-3Ca-0.5RE alloy

被引：8

作者：

Xiong, Xinhong ^{[1
]}

Chen, Lianbo ^{[1
]}

Hu, Kaixiong ^{[1
]}

Wang, Zhiping ^{[1
]}

Zhang, Qiaoxin ^{[2
]}

Lei, Yongjie ^{[3
]}

机构：

[1] Wuhan Univ Technol, Sch Logist Engn, 1040 Heping Rd, Wuhan 430063, Hubei, Peoples R China

[2] Wuhan Univ Technol, Sch Mech & Elect Engn, Wuhan, Hubei, Peoples R China

[3] 9th Designing China Aerosp Sci Ind Crop, Wuhan, Hubei, Peoples R China

来源：

MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2019年 / 70卷 / 07期

关键词：

chloride ion concentration; corrosion behaviour; magnesium alloys; microstructure; temperature; AZ91D MAGNESIUM ALLOYS; ELECTROCHEMICAL-BEHAVIOR; MECHANICAL-PROPERTIES; CA; AL; MICROSTRUCTURE; COATINGS; PH; RESISTANCE; AM50;

D O I：

10.1002/maco.201810626

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of temperature and chloride ion concentration on the corrosion behaviour of Mg-4Al-3Ca-0.5RE alloys were studied in this paper. Corrosion rates of the alloys were measured by weight loss test and electrochemical measurement. The results revealed that a shorter incubation period to the onset of corrosion, a more negative corrosion potential, and a higher corrosion rate was correlated with a higher temperature in 3% NaCl solution and a higher chloride ion concentration at 30 degrees C. The corrosion behaviour of the alloys was affected by surface film and the corrosion mainly occurred at the breaks or defects in surface films.

引用

页码：1214 / 1221

页数：8

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