摘要
使用电沉积法在纯铜基体上制备了银镀层与银石墨复合镀层,采用中性盐雾(240h)和抗硫化物变色试验(0.5h)研究了银镀层与复合镀层的耐蚀性及抗硫性能。研究表明:复合镀层表面未出现腐蚀点与腐蚀坑,按GB/T6461-2002,其耐蚀性达到中性盐雾试验10级标准;复合镀层在1mol/L H2SO4溶液中的耐蚀性与银镀层相比略有降低;抗硫试验前后,复合镀层中的银均无明显的色泽变化,其抗硫性能优于某国产触头镀层与Siemens触头镀层的。
The silver and silver-graphite composite coatings on the substrate of copper were prepared by electro- deposition, respectively. Corrosion resistance and sulfide resistance of the silver and silver-graphite composite coatings were investigated by neutral salt spray test for 240 hours and anti-sulfide discoloration experiment for 0. 5 hour. The results show that the corrosion pits on the surface of the silver-graphite composite coating did not appear, which indicated that the corrosion resistance of the silver-graphite composite coating reached the grade 10 of neutral salt spray test according to GB/T 6461--2002. In comparison with the silver coating, the corrosion resistance of the silver-graphite composite coating decreased slightly in 1 mol/L H2SO4 solution. The silver in the silver-graphite composite coating didn＇t exhibit obvious color change during the sulfide resistance test. The composite coating had better sulfur resistance than the coatings on a domestic contacter and Siemens contacter.
出处
《腐蚀与防护》
CAS
北大核心
2016年第6期490-493,516,共5页
Corrosion & Protection
基金
国网浙江省电力公司科技/信息化项目(B355DW140005)
江西省自然科学基金(20151BAB206017)
航空基金(2013ZF56022)
关键词
银镀层
银石墨复合镀层
电沉积
耐蚀性
抗硫性
silver coating
silver-graphite composite coating
electro-deposition
corrosion resistance
sulfur resistance
