脉冲CO_2激光熔覆K403合金层工艺研究  

The Technological Researches on Laser Cladding of K403 Supralloy by Pulse CO_2 Laser

作　　者：张毅斌[1] 熊征[2] 童法松[1] 

机构地区：[1]中国人民解放军海军驻鞍山钢铁集团公司军事代表室,辽宁鞍山114000 [2]海军工程大学,湖北武汉430033

出　　处：《材料开发与应用》2013年第5期38-43,共6页Development and Application of Materials

摘　　要：在K403合金的基体上,采用脉冲CO2激光器熔覆Stellite合金,研究了脉冲激光峰值功率、扫描速度、脉冲频率和宽度对熔覆层的形状特征和熔合质量的影响。研究结果表明,随着脉冲激光的峰值功率、脉冲宽度、脉冲频率增加,或扫描速度降低,熔覆层的宽度、熔化深度和稀释率增加。采用高峰值功率脉冲激光熔覆可以获得无热裂纹且结合完整的界面。Based on CO2 laser of the pulse beam cladding Stellite alloy on K403 substrate,the effect of the peak power,pulse width,pulse frequency and scanning speed on the shape and cladding quality was investigated. The results show that with the peak power,pulse width and pulse frequency increase,or with the scanning speed decrease,the bead width,melting depth and rate dilution increase. The integrated melt interface without hot cracking can be obtained by pulse laser at high peak power.

关 键 词：脉冲激光熔覆 K403合金 工艺 稀释率 

分 类 号：TG174.44[金属学及工艺—金属表面处理]