应用新一代涂料提高钢板的耐蚀性

Revue De Metallurgie-cahiers D Informations Techniques Pub Date : 2020-01-01 DOI:10.37904/metal.2020.3546

E. Evin, M. Tomáš, J. Kepič

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引用次数: 1

摘要

除了提高安全性、减轻重量和减少排放、提高使用寿命等客户和环境要求外，车身零部件的耐腐蚀性也起着巨大的作用。这可以通过在钢板上涂上锌基涂层来改善。本文介绍了用锌铝镁涂层对钢板进行腐蚀试验的结果。这些都是比较标准锌涂层。试样进行Erichsen拉伸试验和三点弯曲试验，弯曲角度分别为90°和180°。之后，这些被暴露在腐蚀室的盐雾中。极限标准为红色腐蚀出现的时间和腐蚀表面的百分比。结果表明，与常规Zn镀层相比，少量Al和Mg的加入提高了Zn-Al-Mg镀层的耐蚀性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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

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° and 180°. 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.

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来源期刊

Revue De Metallurgie-cahiers D Informations Techniques 工程技术-冶金工程

自引率

0.00%

发文量

审稿时长

24 months