化学镀镍磷合金在海洋环境中的腐蚀行为  

CORROSION BEHAVIOR OF AUTOCATALYTIC PLATING Ni-P COATING IN MARINE ATMOSPHERIC ENVIRONMENT

作　　者：刘丽红[1] 张子华 闫杰[1] 苏少燕[1] 

机构地区：[1]工业和信息化部电子第五研究所,广州510610 [2]空军驻无锡地区军代表室,无锡214063

出　　处：《中国腐蚀与防护学报》2010年第5期369-373,共5页Journal of Chinese Society For Corrosion and Protection

摘　　要：将不同基材、不同磷含量的化学镀镍磷合金镀层样品在南海海洋大气环境中进行大气暴露试验,观察其腐蚀行为,并进行对比分析,优选出海洋环境耐腐蚀性能好的镀层工艺。结果表明,在海洋大气环境中,高磷镀层比中磷镀层耐腐蚀性能好;Q195基材镍磷合金镀层耐腐蚀性能优于铝基材镀层,而铝基材镀层中,LF6M基材镀层优于LF21M基材镀层,LY12-CZ基材镀层耐腐蚀性能最差;海洋大气环境中的Cl^-是镍磷合金阴极镀层的主要腐蚀原因。The autocatalytic plating nickel-phosphorus coatings with different phosphorus content on different substrates were exposed in marine atmospheric environment of South China Sea.During exposure time,the corrosion behaviors were researched and compared.The testing results showed that the corrosion resistance of coatings with high phosphorus content was better than those coatings with medium phosphorus.The corrosion resistance of coatings on Q195 steel substrate was better than those coatings on aluminum substrate.The coatings on LF6M substrate were better than those coatings on LF21M substrate and the coatings on LY12-CZ substrate were the worst;The CI^- is the primary factor for the nickel-phosphorus cathode coating in marine atmospheric environment.

关 键 词：海洋大气暴露试验 化学镀镍磷合金 耐腐蚀性能 

分 类 号：TG176[金属学及工艺—金属表面处理]