反应等离子表面冶金高铬铁基复合材料涂层截齿  

Cutting picker with high chromium Fe-based composite coating prepared by plasma surface metallurgy

作　　者：刘均波[1] 

机构地区：[1]潍坊学院机电系,山东潍坊261061

出　　处：《焊接学报》2007年第8期21-24,共4页Transactions of The China Welding Institution

基　　金：山东省自然科学基金资助项目(Y2002F12)

摘　　要：以蔗糖为前驱体,采用前驱体碳化复合制备粉末技术和反应等离子表面冶金技术在低碳低合金钢表面成功制备了高铬铁基耐磨复合材料涂层。用OM,SEM,EDS,显微硬度计等分析了涂层的显微组织和硬度,并在磨损试验机和冲击试验机上对涂层进行磨损和冲击试验。结果表明,该涂层界面呈冶金结合,性能匹配良好,发挥了各自的使用性能与工艺性能优势。在采煤机截齿上应用该复合材料涂层,简化了热处理工序,降低了生产成本,各项性能指标明显超过行业技术标准。The high chromium Fe-based composite coating was successfully fabricated on the low-carbon low alloy steel by plasma surface metallurgy with the powders which were obtained by heating a mixture powders and sucrose to pyrolyze the sucrose as carbonaceous precursor. The microstructure and microhardness of the coating were studied by scanning electron microscope, X-ray diffraction, energy dispersion spectroscope and microhardness instrument. Wear and impact test were also analyzed by wear tester and impact tester. The results indicate that the interface between coating and matrix of the composite was metallurgically bonded, and the matching performance of the coating was excellent and each performance advantages were developed. The composite was used to coat cutting picker, which simplify the heat-treatment process and reduce the production costs. It indicate that all of the properties surpassed the industry technical standards.

关 键 词：前驱体 反应等离子表面冶金 复合材料涂层 截齿 

分 类 号：TG17[金属学及工艺—金属表面处理]