石油化工高等学校学报2011，Vol.24Issue(5)：86-90,5.DOI:10.3696/j.issn.1006-396X.2011.05.023
电弧喷涂铁基缸体涂层材料组织及耐磨性分析
Analysis on Microstructure and Wear Resistance of Iron-Based Coatings Deposited by Arc Spraying for Cylinder Blocks
摘要
Abstract
Currently, more and more engine blocks are produced by cast aluminum alloys in automotive industry. For the poor wear resistance, cylinder liners made of gray cast iron are embedded to improve the tribological properties. A promising alternative to the use of cylinder liners is the application of wear - risistent coatings deposited by thermal spraying onto the cylinder bore walls. The two kinds of iron - based coatings were prepared by arc spraying. The microstructure and wear risistance of the coatings were analysed by OM, SEM, XRD and MMW-1 Vertical universal wear tester and chosed gray cast iron as a standard material for comparison. The wear tset was carried out under lubricated sliding conditions, sliding speed of 0. 5m / s, sliding distance of 4 500 m, and normal load of 200 N. The results show that, 08A coating has satisfactory values of wear and friction and that it can be a substitution for gray cast iron liners.关键词
铁基涂层/电弧喷涂/微观组织/磨痕/孔隙/氧化物/耐磨性/摩擦系数Key words
Iron-based coating/ Arc spraying/ Microstructure/ Wear scar/ Porosity/ Oxide/ Wear risistant/ Friction分类
能源科技引用本文复制引用
吴比,李增荣..电弧喷涂铁基缸体涂层材料组织及耐磨性分析[J].石油化工高等学校学报,2011,24(5):86-90,5.基金项目
沈阳市科技攻关项目(F10-011-2-00). （F10-011-2-00）
