IMPROVEMENT OF STEEL SHEETS' CORROSION RESISTANCE BY APPLICATION OF NEW GENERATION COATINGS

被引：0

作者：

Evin, Emil ^{[1
]}

Tomas, Miroslav ^{[1
]}

Kepic, Jan ^{[2
]}

机构：

[1] Tech Univ Kosice, Kosice, Slovakia

[2] Inst Mat Res SAS, Kosice, Slovakia

来源：

29TH INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS (METAL 2020) | 2020年

关键词：

Zn based coatings; steel sheet; corrosion resistance; strain; Erichsen test; bending test; ZN-MG;

D O I：

10.37904/metal.2020.3546

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Besides customers and environmental requirements such as safety increase, the weight and emission reduction, and the life-time improvement, huge role plays corrosion resistance of the car-body components. This is improved by applying Zn-based coatings on the steel sheets. In the article are presented results of corrosion tests performed on the steel sheets with Zn-Al-Mg coatings applied. These are compared to the standard Zn coating. Samples were deformed by Erichsen stretching test and by 3-point bending tests to the angle of 90 degrees and 180 degrees. After that, these were exposed to salt spray in the corrosion chamber. The limit criteria were time to red corrosion appearance and percentage of corroded surface evaluated on time. The results showed the small amount of Al and Mg improved the corrosion resistance of Zn-Al-Mg coatings when compared to the conventional Zn coating.

引用

页码：744 / 749

页数：6

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