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首页> 外文期刊>Materials and Corrosion >Effect of the metallic substrate and zinc layer on the atmospheric corrosion resistance of phosphatized and painted electrogalvanized steels
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Effect of the metallic substrate and zinc layer on the atmospheric corrosion resistance of phosphatized and painted electrogalvanized steels

机译：金属基底和锌层对磷化和喷漆电镀锌钢的耐大气腐蚀性能的影响

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摘要

In this work, the influence of the metallic substrate and zinc layer on the atmospheric corrosion resistance of phosphatized and painted electrogalvanized steels was evaluated. For this purpose two types of electrogalvanized steels were used, one with drawing quality carbon steel as metallic substrate, and the other one with a substrate of Ni-Cu-Cr added carbon steel. The corrosion resistance was determined by accelerated and non-accelerated corrosion tests, using cyclic test chambers and field tests in industrial and marine atmosphere. The mean corrosion advance and the maximum corrosion penetration of samples were measured using image analysis techniques. The study showed that the substrate and zinc layer mass play a decisive role on the atmospheric corrosion resistance of the phosphatized and painted electrogalvanized steels. It was also verified that it is possible to use smaller zinc layer masses without compromising the corrosion resistance of the material, provided that the metallic substrate has characteristics of atmospheric corrosion resistance, thus contributing to the improvement of the zinc coated steels.
机译：在这项工作中，评估了金属基底和锌层对磷化和涂漆的电镀锌钢的耐大气腐蚀性能的影响。为此目的，使用了两种类型的电镀锌钢，一种以拉拔优质碳素钢作为金属基材，另一种采用添加了Ni-Cu-Cr的碳素钢基材。耐腐蚀性是通过加速和非加速腐蚀试验，使用循环试验箱以及在工业和海洋环境中进行的现场试验确定的。使用图像分析技术测量样品的平均腐蚀进展和最大腐蚀渗透率。研究表明，基体和锌层质量对磷化和喷漆电镀锌钢的耐大气腐蚀性能起着决定性的作用。还证实了，只要金属基材具有耐大气腐蚀的特性，则有可能使用较小的锌层质量而不损害材料的耐腐蚀性，从而有助于改善镀锌钢。

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