颗粒含量对含污染物油润滑条件下纳米复合电刷镀层摩擦学性能的影响  

EFFECT OF NANO-PARTICLE CONTENT ON TRIBOLOGICAL PROPERTIES OF ELECTRO-BRUSH PLATED COMPOSITE COATINGIN OIL CONTAINING ABRASIVE CONTAMINANT

作　　者：杜令忠[1] 徐滨士[1] 董世运[2] 李新[2] 杨华[2] 吴毅雄[1] 

机构地区：[1]上海交通大学材料科学与工程学院,上海210030 [2]装甲兵工程学院再制造重点实验室,北京100072

出　　处：《复合材料学报》2004年第6期98-103,共6页Acta Materiae Compositae Sinica

基　　金：国家自然科学基金重点项目(50235030);国家973计划项目(G1999065009);2002年中英政府科技合作项目(2002M3)

摘　　要：　研究了电刷镀液中纳米Al2O3颗粒含量对复合镀层中纳米颗粒含量、镀层表面形貌、显微硬度以及摩擦学性能的影响。结果表明,随着镀液中纳米Al2O3颗粒含量的增加,镀层组织细化,显微硬度提高,镀层在含细沙油润滑条件下的耐磨性比不加纳米颗粒的快速镍镀层提高了80%。当镀液中Al2O3含量为20g/L时,镀层具有最佳的耐磨性,进一步提高镀液中的纳米颗粒含量,镀层性能反而下降。The effects of nano-Al2O3 particle content in the electrolyte on the nano-particle content, microstructure, hardness and wear resistance of the composite coating were studied. The results show that the microstructure and hardness of the composite coating are improved with the increase of the nano-particles in the electrolyte, and the wear resistance of nano-composite coating is 80% higher than that of high speed nickel coating. The nano-composite coating has the best wear resistance when the nano-particle content in the electrolyte is 20 g/L, above which the wear resistance decreases.

关 键 词：复合镀层 纳米颗粒 硬度 摩擦学性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]