SLM铝合金表面喷射电沉积Ni-MoS_(2)自润滑复合涂层  

Ni-MoS_(2) Self-lubricating Composite Coating Prepared by Jet Electrodeposition on Aluminum Alloy Formed by SLM

作　　者：柏华文 成海霞 陈亚 娄桂宾 沈理达[1] 田宗军[1] BAI Huawen;CHENG Haixia;CHEN Ya;LOU Guibin;SHEN Lida;TIAN Zongjun(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《热加工工艺》2024年第8期63-68,共6页Hot Working Technology

基　　金：国家自然科学基金项目(51475238);江苏省重点研发计划项目(BE2019002);南京航空航天大学研究生教育教学改革研究项目(2018YJXGG11)。

摘　　要：采用喷射电沉积在SLM铝合金表面制备Ni-MoS_(2)自润滑复合涂层。用摩擦磨损试验机评价镀液中MoS_(2)浓度对Ni-MoS_(2)自润滑复合涂层摩擦磨损性能的影响。结果表明:共沉积MoS_(2)微粒能有效降低Ni-MoS_(2)自润滑复合涂层的摩擦系数和磨损率。与纯Ni涂层相比,Ni-MoS_(2)自润滑复合涂层与316L钢球对磨的摩擦系数和磨损率显著降低,摩擦系数从0.51降至0.12,磨损率从0.41 mg/m降至0.11 mg/m,为SLM铝合金表面改善摩擦学性能提供了参考。Ni-MoS_(2)self-lubricating composite coating was prepared by jet electrodeposition on aluminum alloy formed by SLM.The friction and wear tester was used to evaluate the influence of MoS_(2)concentration in the plating solution on the friction and wear properties of the Ni-MoS_(2)self-lubricating composite coating.The results show that co-deposited MoS_(2)particles can effectively reduce the friction coefficient and wear rate of the Ni-MoS_(2)self-lubricating composite coating.Compared with that of pure Ni coating,the friction coefficient and wear rate of Ni-MoS_(2)self-lubricating composite coating and 316L steel ball on the grinding are significantly reduced,the friction coefficient reduces from 0.51 to 0.12,and the wear rate reduces from 0.41 mg/m to 0.11 mg/m,which can provide references for improving the tribological properties of aluminum alloy formed by SLM.

关 键 词：Ni-MoS_(2)自润滑复合涂层 喷射电沉积 增材制造 摩擦磨损 

分 类 号：TG174.44[金属学及工艺—金属表面处理]