化学镀Ni-P镀层的防腐蚀后处理工艺研究

中国腐蚀与防护学报

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刘光明,刘斌

南昌航空大学

Post-treatment processes for corrosion resistance on the electroless Ni-P coating

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摘要: 钢铁基体上制备化学镀Ni-P镀层后，分别采用γ-氨丙基三乙氧基硅烷（3-APTS），硬脂酸和3-APTS/硬脂酸对镀层进行防腐蚀后处理，利用点滴法，贴滤纸法，盐水浸渍试验法和电化学测试研究了镀层耐蚀性的变化，比较了各工艺的后处理效果。结果表明：三种后处理工艺都能提高化学镀Ni-P镀层的抗氧化性和耐蚀性；经3-APTS/硬脂酸复合处理后的镀层耐蚀性要优于3-APTS和硬脂酸的单一处理；镀层外观都没有明显变化；同时分析了缓蚀机理.

Abstract：post-treatment methods for corrosion resistance with γ-aminopropyl-triethoxysilane（3-APTS）, stearic acid and compound of the both on the electroless Ni-P coating of steel substrate were investigated by spot test, filter paper method, salt water immersion test and electrochemical measurements. Throught comparing corrosion resisting properties, the results showed: the three methods all can increase corrosion resistance of the nickel coating, corrosion resistance of the nickel coating compound post-treated by 3-APTS/stearic acid is superior to single post-treated by 3-APTS or stearic acid; there are all no change in the appearance of the nickel coating after post-treated. At the same time. the mechanism of inhibition were discussed in detail.

收稿日期: 2013-05-16

基金资助:高温水蒸气中稀土对T91钢富铬氧化膜形成和演化的作用机理研究

通讯作者: 刘斌

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引用本文:

刘光明刘斌. 化学镀Ni-P镀层的防腐蚀后处理工艺研究[J]. 中国腐蚀与防护学报, .

链接本文:

https://www.amse.org.cn/Jwk3_jss_new/zgfs/CN/Y0/V0/I0/0

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