The Laser Transformation Hardening Mechanism of High Speed Steel W6Mo5Cr4V2

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 subseque...

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Bibliographic Details
Published in中国科学通报：英文版 no. 3; pp. 253 - 257
Main Author 刘宁 邓宗钢 胡镇华 崔昆 孔捷 程本培
Format Journal Article
LanguageEnglish
Published 01.02.1994
Subjects
hardening
hardness
heat
high
laser
mechanism
MosCr4V2
speed
steel
transformation
treatment
ultrahigh
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Summary: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.
Bibliography:11-1785/N
LIU Ning DENG Zong-GangHU Zhen-Hua, CUI Kun(Department of Mechanical Engineering No. 2, Huazhony University of Science and Technology, Wuhan 430074, PRC)KONG Jie and CHENG Ben-Pei(Institute of Solid State Physics. Academia Sinica, Hefei 230031, PRC)
ISSN:1001-6538
1861-9541