摘要
在普通CD40润滑油中加入纳米氧化铝,研究了在不同载荷条件下对缸套活塞环摩擦副摩擦磨损特性的影响；用铁谱仪对试验油样进行了磨粒分析；用原子力显微镜对缸套试样表面的微观形貌进行了测试；用LAS-3000型表面分析系统对磨损表面进行了成分分析。结果表明：缸套-活塞环摩擦副在含纳米氧化铝的润滑油作用下,表现出优越的抗摩减磨性能,其效果随载荷的增大而增强；在高载荷作用下缸套试样表面形貌有了明显的改观,减小了摩擦阻力,降低了摩擦因数。
Selecting commercial CD40 lubricant as based oil, a simulation experiment was carried out to study the effect of nano-Al2O3 on wear and friction of cylinder liner/piston ring of diesel engine under various loads. The weight loss and friction coefficient were measured, the morphology and size of wear debris in oil were analyzed using ferrography. In addition, the surface micro-image of cylinder liner samples were investigated by AFM, and the elements of worn surface were analyzed by LAS-3000 surface analysis system. The wear resistance and friction reduction became more capable as the load was higher, which suggested that higher load was favourable for tribochemical reaction between nano-Al2O3 and rubbing pair surfaces.
出处
《机械工程材料》
CAS
CSCD
北大核心
2006年第3期44-47,共4页
Materials For Mechanical Engineering
关键词
内燃机
缸套-活塞环
摩擦磨损
纳米氧化铝
diesd engine
cylinder liner/piston ring
friction and wear
rtano-Al2O3
