轧辊表面激光雕刻仿生非光滑形态耐磨性研究

Study of Abrasive Wear Resistance of Bionics Non-smooth Topography on Roller Surface Made by Laser Carving Technology

采用激光雕刻技术在材料表面加工四种仿生非光滑形态（凸包、凹坑、条纹和鳞片），研究了四种激光雕刻仿生非光滑表面及未处理光滑表面抗磨粒磨损的性能，分析了激光处理前后材料组织结构。结果表明：四种仿生非光滑表面抗磨粒磨损性能是未处理光滑表面抗磨粒磨损性能的2～3倍，其中鳞片抗磨性能最佳。激光雕刻仿生非光滑表面耐磨性提高的原因是；晶粒超细化。硬度提高。桩钉效应和仿生效应。

Four kinds of bionics nonsmooth topography （convex,concave,ripple and squama） were made by Laser Carving Technology on material surface. Abrasive wear resistance of four kinds of bionics nonsmooth surface and smooth surface was investigated. Metallographical microstrueture of base material and material processed by Laser Carving Technology was analyzed. The experimental results show that abrasive wear resistance of four kinds of bionics non-smooth topography is two or three times higher than that of smooth surface, and abrasive wear resistance of squama is the best in the four kinds of bionics smooth surface. The reason for abrasive wear resistance enhancement of bionics smooth surface made by Laser Carving Technology is grain super-refining strengthening, hardening, effect of dowel pin and bionics.