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首页> 外文期刊>International Journal of Electrochemical Science >Influence of N-Dodecyl Betaine Surfactant on Electroless Ni-P- nano-ZnO2?Composite Coating Properties Prepared on Magnesium AZ91D Alloy
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Influence of N-Dodecyl Betaine Surfactant on Electroless Ni-P- nano-ZnO2?Composite Coating Properties Prepared on Magnesium AZ91D Alloy

机译：N-十二烷基甜菜碱表面活性剂对镁AZ91D合金化学镀镍αα复合涂料性能的影响

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Magnesium (AZ91D) alloy is used as structural components due to its high strength-to-weight ratio and high stiffness. A disadvantage of AZ91D is high surface roughness and poor corrosion resistance in the marine environment application. Therefore, for protection purposes, surface treatment or coating is required. Electroless plating was recognized for its excellent performance in recent years; its utilization rate has also increased dramatically over decades. This investigation carried in electroless Ni-P-nanoZnO2 composite coating on Mg AZ91D alloy with increasing activation by varying surfactant concentration N-dodecyl betaine (NDB). The coating is characterized by the scanning electron microscope and X-ray Analysis, surface hardness and, roughness measurement. Further, corrosion resistance of the coated substrate was identified using a neutral salt spray test. The results show that the optimal surfactant concentration of 0.6 g/l NDB improves corrosion resistance, reduces surface roughness, and improves surface hardness compared to coating without surfactant.
机译：镁（AZ91D）合金由于其高强度 - 重量比和高刚度而用作结构部件。 AZ91D的缺点是海洋环境应用中的高表面粗糙度和耐腐蚀性差。因此，对于保护目的，需要表面处理或涂层。近年来，化学镀层被认可为其出色的性能;它的利用率几十年来也有巨大增加。通过改变表面活性剂浓度N-十二烷基甜菜碱（NDB），在Mg AZ91D合金中携带在Mg AZ91D合金上的电磁Ni-P-NanoznO2复合涂层。涂层的特征在于扫描电子显微镜和X射线分析，表面硬度和粗糙度测量。此外，使用中性盐喷雾试验鉴定涂覆的基材的耐腐蚀性。结果表明，0.6g / L NdB的最佳表面活性剂浓度提高了耐腐蚀性，降低了表面粗糙度，与没有表面活性剂的涂层相比，改善表面硬度。

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