摘要
采用 2kW的CO2 激光器对经过不同预处理的GCr15钢进行了激光淬火试验。试验结果表明经过特殊预处理的GCr15钢经激光淬火后得到了超细的等轴晶粒 ,尺寸为 0 6 μm× 0 6 μm。此工艺在GCr15钢药物冲头中的应用和试验结果表明 ,GCr15钢药物冲头的综合力学性能较好 ,使用寿命有显著提高。
Laser-beam hardening for GCr15 steel pre-treated by different process was tested with 2kW CO_2 laser apparatus.The results show that the ultra-fine equiaxed crystal with size of 0.6μm×0.6μm is gained in the surface of GCr15 steel by laser-beam hardening after special pre-treated.The application of this process in GCr15 steel tablet punch pin shows that the overall mechanical properties and service life of the pin are improved remarkably.
出处
《金属热处理》
CAS
CSCD
北大核心
2004年第5期15-17,共3页
Heat Treatment of Metals
基金
湖南省教委科研基金资助 ( 4 0 0 JY 0 0 0 175 )
关键词
GCR15钢
超细等轴晶粒
激光淬火
工艺优化设计
steel GCr15
ultra-fine equiaxed crystal
laser-beam hardening
optimum design of process
