摘要
通过分析与总结国内外内燃机活塞组件-缸套系统表面技术研究现状和发展趋势,梳理了表面织构和表面涂层技术在内燃机关键运动副减摩抗磨与节能应用中的特点;剖析了表面织构加工技术、表面织构形貌特征与分布、表面涂层制备工艺、表面耐磨涂层、表面热障涂层和表面技术与润滑的协同效应对运动副摩擦性能的影响。分析结果表明:激光表面织构(LST)能有效改善运动副表面的摩擦学性能,直接/间接激光冲击表面织构(LSSP)技术已成为高效、灵活的表面织构加工方法,但由于织构加工工艺、形貌和分布特征对摩擦学性能的影响较为复杂,仍需进一步结合内燃机活塞组件-缸套系统的工况特性研究并优化表面织构的形貌和分布特征;大气等离子喷涂(APS)和超音速火焰(HVOF)喷涂制备的耐磨涂层和热障涂层(TBC)具有良好的耐磨、隔热和抗氧化性,可使内燃机活塞组件-缸套系统表面金属基复合材料、类金刚石(DLC)材料、纳米复合材料和陶瓷材料涂层的减摩抗磨和节能成效明显,但涂层材料种类繁多,很难形成统一的行业标准、规范以及工业化应用;内燃机活塞组件-缸套系统的动力学特性和表面织构、表面涂层与润滑的协同作用复杂,将来仍需综合考虑多场条件下各种表面技术耦合的减摩抗磨机理,进一步完善内燃机活塞组件-缸套系统表面复合理论和技术体系,为内燃机产业的绿色和高效发展提供技术指导。
Through the analysis and summary of global research statuses and development trends of surface technology in piston assembly-cylinder liner systems of internal combustion engines,the characteristics of surface textures and surface coating technologies in the applications of friction reduction,wear resistance,and energy saving of internal combustion engine key motion pairs were examined.The influences of surface texture processing technology,morphological and distribution characteristics,surface coating preparation technology,surface wear resistant coating,surface thermal barrier coating,and the synergistic effect of surface technology and lubrication on the tribological properties of motion pairs were analyzed in detail.Analysis results show that the laser surface texture(LST)can effectively improve the surface tribological properties of motion pairs.The direct/indirect laser shock surface patterning(LSSP)technology is an efficient and flexible processing method for the surface texture processing.Because the effects of texture processing technology,morphology,and distribution characteristics on the tribological properties are complex,further study and optimization on the morphology and distribution characteristics of surface texture are still necessary based on the operating conditions of piston assembly-cylinder liner systems of internal combustion engines.The wear resistant coatings and thermal barrier coatings(TBC)prepared by the atmospheric plasma spraying(APS)and high velocity oxy-fuel(HVOF)spray,have good wear resistance,heat insulation,and oxidation resistance.The metal matrix composites,diamond-like carbon(DLC)materials,nanocomposites,and ceramic materials on the surface of piston assembly-cylinder liner systems of internal combustion engines exhibit obvious effects in reducing friction,wear resistance and energy-saving.However,because of the wide variety of coating materials,developing a unified industrial standard and norms as well as industrial applications are difficult.The dynamics characteristics,synergistic effect of surface texture,surface coating,and lubrication are complex in the piston assembly-cylinder liner systems of internal combustion engines.In the future,thorough considerations of friction reduction and wear resistance mechanisms of various surface technologies coupling under multi-field conditions and further improvement of surface composite theory and technology system for piston assembly-cylinder liner systems are necessary,to provide a technical guidance for the green and efficient development of internal combustion engines.3 tabs,14 figs,111 refs.
作者
吕延军
罗宏博
张永芳
康建雄
李鹏洲
LYU Yan-jun;LUO Hong-bo;ZHANG Yong-fang;KANG Jian-xiong;LI Peng-zhou(School of Mechanical and Precision Instrument Engineering,Xi'an University of Technology,Xi'an 710048,Shaanxi,China;School of Printing,Packaging Engineering and Digital Media Technology,Xi'an University of Technology,Xi'an 710054,Shaanxi,China)
出处
《交通运输工程学报》
EI
CSCD
北大核心
2022年第1期24-41,共18页
Journal of Traffic and Transportation Engineering
基金
国家自然科学基金项目(52075438)
陕西省重点研发计划(2020GY-106)
机械制造系统工程国家重点实验室开放课题(sklms2020010)。
关键词
内燃机
活塞组件-缸套系统
减摩抗磨
表面织构
耐磨涂层
热障涂层
协同效应
internal combustion engine
piston assembly-cylinder liner system
friction reduction and wear resistance
surface texture
wear resistant coating
thermal barrier coating
synergistic effect
作者简介
吕延军(1972-),男,陕西韩城人,西安理工大学教授,工学博士,从事工业润滑与摩擦学研究。
