基于表面热涂层与表面纹理协同作用的缸套摩擦性能研究  

Study on Tribological Properties of Cylinder Liner Based on Synergistic Effect of Surface Thermal Coating and Surface Texture

作　　者：常铁 杨普泽 

机构地区：[1]武汉理工大学能源与动力工程学院,湖北武汉430063

出　　处：《热加工工艺》2017年第14期145-147,151,共4页Hot Working Technology

基　　金：武汉理工大学自主创新基金项目(2016-ND-B1-05;2017NDA1-01)

摘　　要：针对船舶柴油机的缸套-活塞环摩擦磨损控制问题,利用热涂层技术在缸套表面喷涂3Cr13涂层,并利用机械加工技术进行凹坑纹理处理。对不同缸套试样在MWF-10摩擦磨损试验机上开展不同载荷下的摩擦磨损试验。利用摩擦系数、磨损量以及磨损表面形貌等特征参数来分析表面处理方式对其摩擦性能的影响。结果表明:在三种载荷下,喷涂3Cr13涂层与凹坑纹理协同处理的试样摩擦性能最为优异;表面经过单一凹坑处理或表面喷涂3Cr13涂层也可改善缸套表面的摩擦性能,但效果不如二者协同处理。在高载(600 N)下,经过单一凹坑处理的试样摩擦性能恶化。Aiming at the problem of controling the friction and wear of the cylinder liner-piston ring of marine diesel engine, the 3Cr13 coating was sprayed on cylinder liner surface by thermal coating technology. The pit texture was treated by mechanical nanufacturing technology. The friction and wear tests of different cylinder liner specimens under various loads were carried out on MWF-10 friction and wear tester. The effects of surface treatment ways on the friction performance were analyzed by using friction coefficient, wear volume and wear surface morphology. The results show that under three kinds of loads, the friction performance of the specimen co-processing with spraying 3Cr13 thermal coating and pit texture is the best. Meanwhile ,the surface treated with single pit treatment or single 3Cr13 thermal coating can improve the friction properties of the cylinder surface, but the effect is not as good as the co-processing. Under high load condition （600 N）, the friction performance of the samples after single pit treatment is worse.

关 键 词：3CR13涂层 表面纹理 协同作用 缸套-活塞环 摩擦性能 

分 类 号：TG174.442[金属学及工艺—金属表面处理]