Electrochemical Corrosion Behavior of Magnetron-Sputtered Al-Mo Gradient-Coated Steel in 3.5 wt.% NaCl Solution

Venugopal A.; Narayanan P. Ramesh; Sharma S. C.; George Koshy M.

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Electrochemical Corrosion Behavior of Magnetron-Sputtered Al-Mo Gradient-Coated Steel in 3.5 wt.% NaCl Solution

机译：磁控溅射Al-Mo梯度涂层钢在3.5 wt。％NaCl溶液中的电化学腐蚀行为

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A gradient three-layer Al-Mo coating was deposited on steel using magnetron sputtering method. The corrosion properties of the coating were studied in 3.5 wt.% NaCl solution using electrochemical techniques, whereas the hydrogen-induced cracking (HIC) resistance was examined by constant-load tests using notched tensile specimens. These results were compared with conventional electroplated cadmium-coated steel. The results show that the gradient Al-Mo coating exhibits better corrosion and HIC resistance when compared to electroplated cadmium. This was due to the excellent corrosion resistance of the bottom aluminum-rich layer, while the top Mo-rich layer provided good lubrication properties.

机译：使用磁控溅射法将梯度三层Al-Mo涂层沉积在钢上。使用电化学技术在3.5 wt％的NaCl溶液中研究了涂层的腐蚀性能，而使用带缺口的拉伸试样通过恒载荷测试检查了耐氢致开裂（HIC）的性能。将这些结果与常规的电镀镉涂层钢进行了比较。结果表明，与电镀镉相比，梯度Al-Mo涂层具有更好的耐腐蚀性和耐HIC性能。这是由于底部富铝层具有出色的耐腐蚀性，而顶部富Mo层提供了良好的润滑性能。

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《Journal of Materials Engineering and Performance》 |2016年第3期|共10页
作者
Venugopal A.; Narayanan P. Ramesh; Sharma S. C.; George Koshy M.;
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正文语种 eng
中图分类金属学与金属工艺;工程材料学;
关键词
hydrogen absorption; impedance spectroscopy; low-alloy steel; pitting corrosion; polarization;

机译：氢吸收;阻抗谱;低合金钢;点蚀;极化;

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Electrochemical Corrosion Behavior of Magnetron-Sputtered Al-Mo Gradient-Coated Steel in 3.5 wt.% NaCl Solution

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