Author/Authors :
Huang، نويسنده , , J.Y. and Zhu، نويسنده , , Y.T and Liao، نويسنده , , X.Z and Beyerlein، نويسنده , , I.J and Bourke، نويسنده , , M.A. and Mitchell، نويسنده , , T.E، نويسنده ,
Abstract :
Cryogenic treatment has been claimed to improve wear resistance of certain steels and has been implemented in cutting tools, autos, barrels etc. Although it has been confirmed that cryogenic treatment can improve the service life of tools, the underling mechanism remains unclear. In this paper, we studied the microstructure changes of M2 tool steel before and after cryogenic treatment. We found that cryogenic treatment can facilitate the formation of carbon clustering and increase the carbide density in the subsequent heat treatment, thus improving the wear resistance of steels.
Keywords :
Wear resistance , cryogenic treatment , steel , carbide , microstructure
