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

钢铁研究学报(英文版), 2008, 15(3): 42-46.

^1, , ^2, , ^3,

1.Institute of Structural Materials, Central Iron and Steel Research Institute, Beijing 100081, China;National Engineering Research Center of Advanced Steel Technology, Beijing 100081, China

2.Institute of Structural Materials, Central Iron and Steel Research Institute, Beijing 100081, China;National Engineering Research Center of Advanced Steel Technology, Beijing 100081, China

3.Institute of Structural Materials, Central Iron and Steel Research Institute, Beijing 100081, China;National Engineering Research Center of Advanced Steel Technology, Beijing 100081, China

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

ZHANG Shu-lan ^1, , SUN Xin-jun ^2, , DONG Han ^3,

1.Institute of Structural Materials, Central Iron and Steel Research Institute, Beijing 100081, China;National Engineering Research Center of Advanced Steel Technology, Beijing 100081, China

2.Institute of Structural Materials, Central Iron and Steel Research Institute, Beijing 100081, China;National Engineering Research Center of Advanced Steel Technology, Beijing 100081, China

3.Institute of Structural Materials, Central Iron and Steel Research Institute, Beijing 100081, China;National Engineering Research Center of Advanced Steel Technology, Beijing 100081, China

Keywords： ultra-high carbon steel

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 be-tween 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 pearli- te was lamelliform. When the rate of reduction was increased to 70%, some of the induced lamellar pearlite was bro-ken up under deformation.

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