Ni/P金刚石化学复合镀层性能与组织研究  

Study on performances and structures of Ni/P-diamond electroless composite coating

作　　者：朱昌洪[1] 朱永伟[1] 邵建兵[1] 惠骏[1] 

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《金刚石与磨料磨具工程》2010年第5期26-31,37,共7页Diamond & Abrasives Engineering

基　　金：江苏省材料摩擦学重点实验室开放基金(kjsmcx0901)

摘　　要：本文研究了金刚石含量、热处理温度、表面活性剂种类等因素对Ni-P-金刚石复合镀层的显微硬度与耐磨性能的影响;采用扫描电子显微镜、X射线衍射仪对复合镀层的表面形貌及组织结构进行了分析。结果表明:在化学镀层中共沉积金刚石微粉能显著提高镀层的耐磨性;各工艺因素对复合镀层显微硬度与耐磨性的影响程度各不相同,热处理温度对复合镀层耐磨性能的影响最大;当镀液中金刚石微粉含量为2 g/L、热处理温度400℃、表面活性剂为SHP其含量为1∶15时,复合镀层的耐磨性能最好。与Ni-P化学镀层相比,金刚石复合镀层的耐磨性提高50%。The effect of factors,such as diamond content,heat treatment temperature and type of surfactant on the micro-hardness and wear resistance of diamond composite coating was studied.The surface morphology and the structure of composite coating were analyzed by scanning electron microscopy（SEM） and X-ray diffraction （XRD）.The results showed that the addition of the diamond micro-powder in plating bath could significantly improve the wear resistance of the composite coating.The effect of factors on the micro-hardness and wear resistance of coating was different,the heat treatment temperature impacted the most.The optimal parameters were： diamond micro-powder content 2 g/L,heat treatment temperature 400 ℃,surfactant SHP and its content being 1∶15.Compared with Ni-P coating,the wear resistance of Ni-P-diamond composite coating increased by 50 %.

关 键 词：金刚石微粉 化学复合镀 显微硬度 耐磨性 形貌组织 

分 类 号：TQ164[化学工程—高温制品工业]