The Laser Transformation Hardening Mechanism of High Speed Steel W_6Mo_5Cr_4V_2  

作　　者：刘宁 邓宗钢 胡镇华 崔昆 孔捷 程本培 

机构地区：[1]Department of Mechanical Engineering No. 2, Huazhony University of Science and Technology, Wuhan 430074, PRC [2]Institute of Solid State Physics. Academia Sinica, Hefei 230031, PRC

出　　处：《Chinese Science Bulletin》1994年第3期253-257,共5页

摘　　要：The application of laser surface melting in the laser heat treatment of high speedsteel causes low hardness, so the subsequent quenching and tempering processesare needed. And by means of transformation hardening techniques, ultrahighhardness 】HV1000 can be obtained.In this case, the subsequent quenching pro-cess can be saved, and the wear and scuffing resistances can be considerably im-proved. However, the laser transformation hardening mechanism has not beenunderstood clearly. The laser transformation hardening mechanism of high speedsteel W₆Mo₅Cr₄V₂ has been studied in the present note by TEM and X-ray diffractionmethod in order to provide a theoretical basis for application.

关 键 词：high SPEED steel W6 MosCr4V2 laser heat treatment TRANSFORMATION HARDENING MECHANISM ultrahigh hardness. 

分 类 号：TN249[电子电信—物理电子学]