The Laser Transformation Hardening Mechanism of High Speed Steel W 6 Mo 5 Cr 4 V 2
TL;DRAbstract
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 W_6Mo_5Cr_4V_2 has been studied in the present note by TEM and X-ray diffractionmethod in order to provide a theoretical basis for application.
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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 W_6Mo_5Cr_4V_2 has been studied in the present note by TEM and X-ray diffractionmethod in order to provide a theoretical basis for application.
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