【作者】 樊占国； 国栋； 赵林； 苏海；

【Author】 Fan Zhanguo~(1*) Guo Dong~1 Zhao Lin~1 Su Hai~2 (1.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China;2.Tie Ling Four Season Benefit Surface Treatment Ltd.Liaoning,Tieling 112611,China)

【机构】 东北大学材料与冶金学院； 铁岭世纪盈表面处理有限公司；

【摘要】 对镁合金传统化学镀工艺进行了改进,避免了氢氟酸和六价铬等有毒物质。采用化学镀方法,在 AZ31镁合金上获得了 Ni-P-PTFE 化学复合镀层,并研究了络合剂对镀液性能以及镀液中 PTFE 含量对复合镀层的影响。结果表明:所获得的 Ni-P-PTFE 镀层均匀、致密,耐蚀性与 Ni-P 镀层相当,对镁合金可以起到明显的保护作用;复合的 PTFE 颗粒起到了明显的润滑、减摩作用,PTFE 颗粒的复合可以提高化学镀层的耐磨性。更多还原

【Abstract】 Traditional process of electroless Ni-P plating on magnesium alloy was improved,and the poisonous substances of hydrofluoric acid and Cr⁶⁺ were not used.The process of Ni-P-PTFE composite plating was developed,and the effects of complexing agents on plating bath properties and PTFE content on composite coating were studied.The results show that the prepared Ni-P-PTFE coating is uniform and compact,and the corrosion resistance is equivalent to that of Ni-P coating.The composite coating could provide adequate protection to magnesium alloy substrate.The wear resistance of the composite coating is improved owing to the co-deposition of PTFE particles.更多还原