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首页> 外文期刊>International Journal of Electrochemical Science >A Comparison of the Corrosion Resistance and Wear Resistance Behavior of Cr-C, Ni-P and Ni-B Coatings Electroplated on 4140 Alloy Steel
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A Comparison of the Corrosion Resistance and Wear Resistance Behavior of Cr-C, Ni-P and Ni-B Coatings Electroplated on 4140 Alloy Steel

机译：4140合金钢上Cr-C，Ni-P和Ni-B涂层的耐蚀性和耐磨性能的比较

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摘要

Different coatings such as Cr-C coatings (chromium sulfate bath), Cr-C coatings (chromium chloride bath), Ni-P coatings and Ni-B coatings are electrodeposited on 4140 alloy steel, respectively. The corrosion and wear resistance of these coatings are studied. The experimental results show that the Ni- B coatings has the highest hardness (approximately at 951 Hv) and the best adhesion strength (approximately at 11 MPa), these two excellent properties lead to the Ni-B coatings has the lowest wear rate (approximately at 0.66×10-6 mm3/Nm). According to the potentiodynamic polarization -7 2 analysis results, it shows that Ni-B coatings has a better corrosion resistance (icorr = 9.62×10 A/cm ) than that of Cr-C coatings due to its crack-free structure and higher adhesion strength. All experimental results indicate that Ni-B coatings is the most suitable coatings which can be used to protect 4140 alloy steel substrates from corrosion and wear damages, and enhance the application of 4140 alloy steel in industry.
机译：分别将不同的涂层（例如Cr-C涂层（硫酸铬浴），Cr-C涂层（氯化铬浴），Ni-P涂层和Ni-B涂层）电沉积在4140合金钢上。研究了这些涂层的耐腐蚀性和耐磨性。实验结果表明，Ni-B涂层具有最高的硬度（大约在951 Hv时）和最佳的附着强度（大约在11 MPa时），这两个优异的性能导致Ni-B涂层的磨损率最低（大约在1200 h）。在0.66×10-6 mm3 / Nm）。根据电势极化-7 2分析结果表明，由于其无裂纹的结构和更高的附着力，Ni-B涂层具有比Cr-C涂层更好的耐腐蚀性（icorr = 9.62×10 A / cm）。强度。所有实验结果表明，Ni-B涂层是最合适的涂层，可用于保护4140合金钢基材不受腐蚀和磨损损害，并增强4140合金钢在工业中的应用。

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