摘要
本文对稀土镁球墨铸铁凸轮轴激光热处理硬化层的组织耐磨性进行了探讨 ,并分析了磨损机理。研究结果表明 :激光处理后的凸轮轴 ,变形小 ,而且具有良好的耐磨性。
The paper makes a research into the microstructure and the wear resistance of the hardened layers by laser heat treatment for cam-shafts of the rare earth magnesium nodular graphite cast iron and analyzes the wear mechanism.The research results show that the cam-shafts after laser heat treatment deforms little and have good wear resistance.This is of great significance for the practical application of the laser heat mtreatment for cam-shafts of the rare earth magnesium nodular graphite cast iron.
关键词
稀土镁球墨铸铁
凸轮轴
激光热处理
耐磨性
rare earth magnesium nodular graphite cast iron
cam-shafts
laser heat treatment
wear resistance
