摘要
利用连续波CO2 激光器 ,对铁基粉末冶金材料进行了宽带激光相变硬化实验。研究了激光相变硬化工艺参数对铁基粉末冶金材料的显微组织、显微硬度、硬化层深度和耐磨性的影响。结果表明 ,对铁基粉末冶金材料进行宽带激光淬火存在最佳的能量密度 ,可使硬化层分布均匀 。
Wide-band laser transformation hardening of Fe-based sintered materials was carried out with a continuous wave CO2 laser. The effect of laser parameters on microstructure, micro-hardness, depth in the hardened layer and wear resistance of Fe-based sintered materials was studied. The study indicates that wide-band laser quenching of Fe-based sintered materials exists an optimal energy density which makes hardening layer even and remarkably improve the wear resistance of Fe-based sintered materials.
出处
《粉末冶金技术》
EI
CAS
CSCD
北大核心
2004年第4期232-235,共4页
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