航空材料学报2012，Vol.32Issue(5)：60-65,6.DOI:10.3969/j.issn.1005-5053.2012.5.010
等离子喷涂铜-石墨复合涂层结构与干摩擦磨损性能研究
Structure and Dry Tribology Performance of Plasma Sprayed Copper-Graphite Composite Coating
摘要
Abstract
Graphite-65wt. % Cu composite coating was deposited by air plasma spraying on 316 stainless steel substrate using graphite-65wt. % Cu composite powder with the particles' size in the range of 50 ~70μm. Microstructure and phase composition were characterized by field emission scanning electron microscopy ( FESEM ) with energy dispersive spectrometer ( EDS) and X-ray diffraction ( XRD). Tribological properties of as-sprayed coatings were studied using the ball-on-disc friction and wear tester ( UMT) under conventional conditions. The results show that the microstructure of as-sprayed coating is dense, which is well bonded with stainless steel substrate. The graphite particles uniformly distribute into the coating. The coating mainly consists of C , Cu and Cu2O phases. Graphite transferred film results in the low friction coefficient, and the experiment values are in the range of 0. 03 to 0. 15. Adhesion wear is the main wear mechanism.关键词
等离子喷涂/铜-石墨/复合涂层/干摩擦Key words
plasma spraying/ copper-graphite/ composite coating/ dry friction分类
通用工业技术引用本文复制引用
云海涛,梁波,季珩,郑学斌..等离子喷涂铜-石墨复合涂层结构与干摩擦磨损性能研究[J].航空材料学报,2012,32(5):60-65,6.基金项目
国家重点基础研究发展计划资助973项目(2010CB731600) （2010CB731600）
