化学镀Ni-P合金镀层铬酸盐钝化及其耐蚀性的研究  

Chromate Passivating of Electroless Ni-P Alloy Coating and the Corrosion Resistance Study

作　　者：杨明悦[1] 刘定富[1] 

机构地区：[1]贵州大学,贵州贵阳550025

出　　处：《电镀与环保》2016年第5期24-26,共3页Electroplating & Pollution Control

基　　金：基金项目:铝合金化学镀镍关键技术开发(黔科合GY字[2013]3035)

摘　　要：对化学镀Ni-P合金镀层进行铬酸盐钝化处理,并研究了钝化温度和钝化时间对化学镀NiP合金镀层耐蚀性的影响。结果表明:钝化处理可以显著提高化学镀Ni-P合金镀层的耐蚀性。经40g/L重铬酸钾钝化的化学镀Ni-P合金镀层的耐蚀性明显优于经5g/L重铬酸钾钝化的化学镀Ni-P合金镀层的耐蚀性。随着钝化温度的升高或钝化时间的延长,化学镀Ni-P合金镀层的耐蚀性增强。Chromate passivating treatment of electroless Ni-P alloy coating was performed, and the influences of passivating temperature and passivating time on the corrosion resistance of electroless Ni-P alloy coating was studied. Results showed that passivating treatment can significantly improve the corrosion resistance of electroless Ni-P alloy coating. Corrosion resistance of the electroless Ni-P alloy coating passivated in 40 g/L potassium dichromate was better than that of the electroless Ni-P alloy coating passivated in 5 g/L potassium dichromate. As the passivating temperature raised and the passivating time prolonged, the corrosion resistance of electroless Ni-P alloy coating was enhanced.

关 键 词：化学镀Ni-P合金镀层 铬酸盐钝化 耐蚀性 

分 类 号：TG174[金属学及工艺—金属表面处理]