激光表面硬化预涂层用89-1涂料的研究  

89-1 coating for laser surface hardening

作　　者：国玉军[1] 刘常升[1] 贺春林[1] 才庆魁[1] 战效文[1] 

机构地区：[1]东北大学材料与冶金学院,沈阳110004

出　　处：《激光技术》2002年第4期252-254,共3页Laser Technology

摘　　要：研究了一种CO2 激光表面硬化预涂层用的涂料 ,并将之用于凸轮轴等金属材料的激光表面硬化处理 ,检测了硬化层的热穿透深度、硬度、表面粗糙度等。实验表明 ,这种涂料具有吸收效率高、导热速度快、热化学稳定性好、表面涂层无烧蚀、无溅射、易去除以及其价格低廉、无毒、无害、无污染等优点 。A kind of coating used in the pretreatment coating of CO 2 laser surface modification is studied.The thermal penetration depth,hardness and surface coarseness of the hardened layer have been examined with the coating used in laser surface hardening treatment.The experiment results indicate that the coating is of merits because it has high absorption rate,high conductivity and good thermochemical stability.The coating has no erosion,poison,pollution and sputtering.It is low-cost,harmless,and easy to remove.It completely meets the demand of laser hardening.

关 键 词：激光表面硬化 涂层 二氧化碳激光器 金属材料 

分 类 号：TG156.99[金属学及工艺—热处理]