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| Carbon Diffusion During Deformation Induced Ferrite Transformation in a Low Carbon Steel |
| LIU Zhaoxia; TONG Mingming; HUANG Chengjiang; LI Dianzhong |
| Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110016 |
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Cite this article:
LIU Zhaoxia; TONG Mingming; HUANG Chengjiang; LI Dianzhong. Carbon Diffusion During Deformation Induced Ferrite Transformation in a Low Carbon Steel. Acta Metall Sin, 2004, 40(9): 930-934 .
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Abstract In order to investigate the carbon diffusion
during the deformation induced ferrite
transformation, the electron probe microanalysis
technique was used to measure the carbon concentration
distribution in the microstructure of the
specimen which experienced a hot compression process on the
thermomechanical simulator (Gleeble 1500).
The measurement results indicated that the carbon
concentration was significantly
supersaturated in the deformation
induced ferrite grains, which means that
there was no carbon atoms diffusion from
the ferrite to the austenite during the deformation induced ferrite
transformation. According to the thermodynamics analysis, there is
no need for the carbon atoms to diffuse from the
ferrite to the austenite
during the transformation, because the accumulated stored
energy has become the unique driving force when the
deformation temperature is higher than the austenite-ferrite equilibrium
transformation temperature Ae3.
diffusion, electron probe microanalysis
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Received: 31 May 2004
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