材料期刊网

Mechanism of Austenite Evolution During Deformation of UltraHigh Carbon Steel

ZHANG Shulan , SUN Xinjun , DONG Han

钢铁研究学报(英文版)

The mechanism of transformation of austenite to cementite and pearlite during the deformation of ultrahigh carbon steel was discussed. The results indicate that the pearlite and cementite can be induced by deformation between Acm to Arcm. The transformation during deformation is still considered as a diffusioncontrolled process. With the increase of time and reduction, the pearlite fraction increased. At the beginning of the transformation, the pearlite was lamelliform. When the rate of reduction was increased to 70%, some of the induced lamellar pearlite was broken up under deformation.

关键词: ultrahigh carbon steel;microstructure;deformation;transformation