The corrosion of pure Mg accelerated by haze pollutant ammonium sulphate

被引：47

作者：

Cao, Fuyong ^{[1
]}

Zhao, Chen ^{[1
]}

Song, Guang-Ling ^{[1
]}

Zheng, Dajiang ^{[1
]}

机构：

[1] Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Coll Mat, Ctr Marine Mat Corros & Protect, 422 S Siming Rd, Xiamen 361005, Peoples R China

来源：

CORROSION SCIENCE | 2019年 / 150卷

基金：

中国国家自然科学基金;

关键词：

Magnesium; Ammonium; Polarization; Potentiostatic; Alkaline corrosion; ATMOSPHERIC CORROSION; MAGNESIUM ALLOY; AL-ALLOYS; AZ31; MECHANISM; FILM; MORPHOLOGY; PARTICLES; BEHAVIOR; OXIDES;

D O I：

10.1016/j.corsci.2019.01.042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The corrosion behavior of pure Mg in NH4+-containing alkaline solutions was studied by immersion test, electrochemical methods, morphology observation and corrosion product analysis. The results showed that the corrosion of Mg was dramatically accelerated by NH4+, resulting in a thick and loose Mg(OH)(2) corrosion product film formed in the NH4+ containing alkaline solutions. It was proposed that the NH4+ could dissolve the relatively protective MgO layer in the corrosion product film, providing a path for the solution to reach the substrate and facilitating the corrosion of Mg.

引用

页码：161 / 174

页数：14

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