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| Effect of cooling rates on the microstructure of proeutectoid ferrite in Fe-0.76%C alloy under high magnetic field |
| GONG Ming-Long;;; |
| 东北大学 材料各向异性与织构教育部重点实验室 |
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Cite this article:
GONG Ming-Long. Effect of cooling rates on the microstructure of proeutectoid ferrite in Fe-0.76%C alloy under high magnetic field. Chin J Mater Res, 2008, 22(5): 490-494.
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Abstract the present studies are to investigate the microstructure features of proeutectoid ferrite during transformation from austenite to ferrite at different cooling rates (0.5℃/min,2℃/min and 5℃/min) without and with applying the magnetic field(12T) on Fe-0.76%C alloy. It’s found that the preutectoid ferrite grains elongated along the magnetic field direction, and the angle between the major axis of proeutectoid ferrite and magnetic field direction was decreased with the cooling rates increasing. The most possible reason is that the preutectoid ferrite became the magnetic dipolar under high magnetic field, but the magnetic dipolar is far away the another one, and the diffusion of atom was weaken at quick relativelycooling rates.
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Received: 08 November 2007
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