CAJ | 학술논문

采用在化学镀液中添加纳米金刚石爆轰黑粉的方法,在20#钢基体上共沉积了Ni-P-纳米金刚石复合镀层,重点研究了复合镀层的耐磨特性和金刚石含量、表面活性剂及热处理等工艺因素对复合镀层摩擦磨损性能的影响,并初步探索了复合镀层的耐磨机制.结果表明:纳米金刚石爆轰黑粉化学复合镀层具有优异的耐磨性能,黑粉中的石墨成分可起到自润滑作用.复合镀液中金刚石黑粉含量为8g/L,不添加表面活性剂,镀层热处理温度为360℃时,镀层耐磨性能最佳.
채용재화학도액중첨가납미금강석폭굉흑분적방법,재20#강기체상공침적료Ni-P-납미금강석복합도층,중점연구료복합도층적내마특성화금강석함량、표면활성제급열처리등공예인소대복합도층마찰마손성능적영향,병초보탐색료복합도층적내마궤제.결과표명:납미금강석폭굉흑분화학복합도층구유우이적내마성능,흑분중적석묵성분가기도자윤활작용.복합도액중금강석흑분함량위8g/L,불첨가표면활성제,도층열처리온도위360℃시,도층내마성능최가.
Ni-P-nano-diamond black powder (NDBP) composite coating was codeposited on 20# steel substrate by adding NDBP to electroless plating bath. The research emphasizes on the friction and wear behavior of the electroless composite coating and the effects of process factors including diamond content, surfactant and heat treatment. A preliminary explanation for wear-resistance mechanism of composite coating was given. The results showed that the NDBP electroless composite coating has excellent wear resistance and the graphite in NDBP plays a self-lubricating role. The coating prepared by adding 8 g/L diamond black powder to bath without any surfactant has optimal anti-wear performance after heat treatment at 360℃.