高强化条件下离子液体对活塞环-气缸套摩擦磨损性能的影响研究  

Research on Influence of Ionic Liquid on Friction and Wear Properties of Piston Ring-Cylinder Liner under High Reinforcement Conditions

作　　者：郜智伟 黄若轩 秦学 王一然 王子淳 范君静 Gao Zhiwei;Huang Ruoxuan;Qin Xue;Wang Yiran;Wang Zichun;Fan Junjing(Global R&D Center,China FAW Corporation Limited,Changchun 130013;China North Engine Research Institute,Tianjin 300000;Dalian Maritime University,Dalian 116026)

机构地区：[1]中国第一汽车股份有限公司研发总院,长春130013 [2]中国北方发动机研究所,天津300000 [3]大连海事大学,大连116026

出　　处：《汽车工程师》2024年第7期24-33,共10页Automotive Engineer

摘　　要：为探究高强化运行工况下离子液体(IL)添加剂对内燃机关键配对副、氮化气缸套-喷钼活塞环摩擦学性能的影响,采用离子液体质量分数为2%的润滑油润滑配对副,通过分析磨损后配对副的表面微观形貌、成分以及摩擦化学反应产物,探究配对副在离子液体润滑条件下的磨损行为及其相关机制,评价其对配对副摩擦、磨损和磨损特性的影响。试验结果表明:离子液体添加剂有助于提升氮化气缸套-喷钼活塞环配对副的摩擦学性能;在180℃条件下,离子液体具有最佳的摩擦学性能,该现象与离子液体在气缸套表面上的摩擦化学反应及其产物有关。In order to investigate the effects of Ionic Liquid(IL)additives on the tribological properties of the key pairs of internal combustion engine,nitriding cylinder liner and molybdenum spray piston ring under high-reinforcement conditions,the lubricating oil with 2%ionic liquid mass fraction is used to lubricate the pairs.By analyzing the surface morphology,composition and tribological chemical reaction products of the worn pairs,the paper investigates wear behavior and relates mechanism of pair under ionic liquid lubrication,and evaluates its influence on friction,wear and wear characteristics of pairs.The experimental results show that the ionic liquid additive can improve the tribological properties of nitriding cylinder liner and molybdenum injection piston ring pair.The ionic liquid has the best tribological properties at 180℃,which is related to the tribological chemical reaction of ionic liquid on the surface of cylinder liner and its products.

关 键 词：离子液体 摩擦学性能 氮化气缸套 

分 类 号：U473.6[机械工程—车辆工程]