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DI materials were quenched at the temperature of 250°C, 300°C, 350°C and with the isothermal time of 1h, 2h and 3h respectively. So there were nine different ADI materials, which owned different mechanical properties. Through analyzing the changes of their metallographic structures, curves of the relationships between quenching temperatures, isothermal time and materials intensity, hardness could...
Steel with 5%Cr for cold rolling rolls is investigated in this paper. Kinetics of the supercooled austenite transformation is studied. The influence of the quenching temperature on the structure and properties of roll steels is investigated. The size of austenitic grain, the amount of residual austenite, hardness and martensite transformation start temperature are determined. The susceptibility of...
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