摘要
采用 2kW的CO2 激光束在W 6Mo5Cr4V2高速钢表面熔覆陶瓷层材料 ,表面会形成三维网络状的陶瓷层 ,并经过淬火、回火热处理。研究结果表明 ,高速钢的高强度、高韧性结合高性能的陶瓷层 ,可形成一个良好的硬化层分布 ,其最高硬度可达 1 887HV ,其耐磨性比常规淬、回火组织高约 (3～ 7)倍。其高温硬度 (红硬性 )
The ceramic layers were cladded on W6Mo5Cr4V2 high speed steel surface with a 2kW CO 2 laser,and the net of three dimension ceramic layers are formed.The steel was quenched and tempered The test results indicate that the high strength and toughness of the steel combines with their properties of the ceramic layers forming a well distribution. The highest hardness of the layers can reach 1887HV,and the wear resistances are increased (3～7) times compared to those of the steel in common heat treatment. The high temperature hardness and temper stability are enhanced,too.
出处
《激光技术》
CAS
CSCD
北大核心
2003年第5期434-436,共3页
Laser Technology
关键词
激光熔覆
高速钢
陶瓷
显微组织
耐磨性
laser cladding
high speed steel
ceramic
microstructure
wear resistance
