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Effect of high magnetic field on phase transformation temperature and microstructure of Fe-based Alloys 被引量:13

Effect of high magnetic field on phase transformation temperature and microstructure of Fe-based Alloys
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摘要 The effect of a high magnetic field up to 30T on phase transformation temperature and microstructure of Fe-based alloys has been reviewed. A high magnetic field accelerates ferrite transformation, changes the morphology of the transformed microstructures and increases the A3 and A1 temperature. In a magnetic field of 30T, the A1 temperature increases by about 37.1℃ for Fe-0.8C, the A3 temperature for pure Fe increases by about 33.1℃. The measured transformation temperature data are not consistent with calculation results using Weiss molecular field theory. Ferrite grains are elongated and aligned along the direction of magnetic field in Fe-0.4C and Fe-0.6C alloys by ferrite transformation, but elongated and aligned structure was not found in pure Fe, Fe-0.05C alloy and Fe-1.5Mn-0.11C-0.1V alloy. The effect of a high magnetic field up to 30T on phase transformation temperature and microstructure of Fe-based alloys has been reviewed. A high magnetic field accelerates ferrite transformation, changes the morphology of the transformed microstructures and increases the A_3 and A_1 temperature. In a magnetic field of 30T, the A_1 temperature increases by about 37.1℃ for Fe-0.8C, the A_3 temperature for pure Fe increases by about 33.1℃. The measured transformation temperature data are not consistent with calculation results using Weiss molecular field theory. Ferrite grains are elongated and aligned along the direction of magnetic field in Fe-0.4C and Fe-0.6C alloys by ferrite transformation, but elongated and aligned structure was not found in pure Fe, Fe-0.05C alloy and Fe-1.5Mn-0.11C-0.1V alloy.
出处 《材料与冶金学报》 CAS 2005年第2期132-137,共6页 Journal of Materials and Metallurgy
关键词 强磁场 铁基合金 相变温度 显微组织 phase transformation microstructure transformation temperature high magnetic field Fe-based alloys
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