摘要
采用电刷镀技术在 4 5钢表面制备了纳米Al2 O3 颗粒复合镀层 ,并且在球 -盘式摩擦磨损试验机上对比研究了纳米颗粒复合镀层与普通快速镍镀层在含污染物油润滑条件下的摩擦磨损性能。结果表明纳米颗粒复合镀层的摩擦系数和磨损量均小于快速镍镀层。随滑动速度增加 ,两种镀层磨损量都先减少后增加 ,但纳米颗粒复合镀层磨损量增加的幅度小于快速镀镍层。两种镀层的磨损机理均为磨粒磨损和粘着磨损。由于纳米颗粒的强化作用 。
The composite coating containing Al2O3 nano-particles was prepared by brush plating. The wear resistance of the composite coating and rapid plating nickel coating under abrasive contaminant lubrication were compared on pin-on-disk tester. The results show that the friction coefficient and wear amount of the composite coating are less than those of the quick nickel coating. With sliding speed increasing, the wear amount decreases at first, and then increases again. The amount increasing trend of the composite coating is slower than that of the quick nickel coating. The wear mechanism is abrasive and adhesive wear for the two coatings, but the wear resistance of the composite coating is better than that of the rapid plating nickel coating due to the nano-particles strengthening effect.
出处
《金属热处理》
EI
CAS
CSCD
北大核心
2005年第1期51-53,共3页
Heat Treatment of Metals
基金
国家自然科学基金重点项目 ( 5 0 2 35 0 30 )
国家 973计划项目 (G1 9990 6 5 0 0 9)
2 0 0 2年中英政府科技合作项目( 2 0 0 2M 3)
关键词
纳米复合镀层
污染物
润滑油
抗磨损
nano-composite coating
contaminant
lubricating-oil
wear resistance
