摘要
采用CO2横流激光器在Q235钢表面熔覆制备了原位合成Fe基TiC金属陶瓷复合涂层;对熔覆层进行了显微组织观察、显微硬度测量以及室温下的干滑动摩擦磨损试验。结果表明,Fe基TiC金属陶瓷增强熔覆层组织致密,无缺陷,TiC粒子同基体之间结合良好。熔覆层室温下以区域选择性粘着磨损和显微切削为主,干摩擦磨损性能优良。
The in-situ synthesized Fe-based TiC metal-ceramics composite coating on the surface of Q235 steel was clad by agreat power CO2 laser; the microstructure of coating was observed and analyzed, microhardness was measureds; the dry friction and wear properties at room-temperature were checked. The results show that the microstructure of Fe-based TiC metal-ceramics coating layer is compact and has no defects; clean bonding interface is formed between TiC particles and the matrix. Adhesive wear and micro cutting are the main mode at room-temperature. Dry friction and wear properties of Fe-based TiC metal-ceramics coating are excellent.
出处
《热加工工艺》
CSCD
北大核心
2013年第24期158-160,164,共4页
Hot Working Technology
基金
湖南省自然科学省市联合基金资助项目(13JJ9025)
湖南工学院重点科研项目(HGZ0601)
关键词
激光熔覆
原位合成
Fe基TiC金属陶瓷涂层
室温干摩擦磨损
laser cladding
in-situ synthesis
Fe-based TiC metal-ceramics coating
dry friction and wear properties at room-temperature
