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材料研究学报  2008, Vol. 22 Issue (5): 490-494    
  论文 本期目录 | 过刊浏览 |
强磁场下冷却速率对Fe-0.76%C钢先共析铁素体组织的影响
宫明龙;王守晶;赵骧;左良
东北大学 材料各向异性与织构教育部重点实验室
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
引用本文:

宫明龙; 王守晶; 赵骧; 左良 . 强磁场下冷却速率对Fe-0.76%C钢先共析铁素体组织的影响[J]. 材料研究学报, 2008, 22(5): 490-494.
, , , . Effect of cooling rates on the microstructure of proeutectoid ferrite in Fe-0.76%C alloy under high magnetic field[J]. Chin J Mater Res, 2008, 22(5): 490-494.

全文: PDF(677 KB)  
摘要: 研究了在12 T强磁场下冷却速率对Fe-0.76%C钢中先共析铁素体的显微组织和性能的影响,结果表明: 先共析铁素体晶粒的伸长方向与磁场方向的夹角随着冷速度的提高而增大,其原因是高速冷却时原子扩散减弱. 在冷却速率相同的条件下, 与非磁场热处理样品相比,强磁场热处理样品的先共析铁素体面积明显增加, 宏观硬度下降,因为强磁场使Fe-0.76%C钢表现出更明显的亚共析钢特征.
关键词 金属材料强磁场Fe-0.76%C钢    
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.
Key wordshigh magnetic field    Fe-0.76%C alloy    proeutectoid ferrite    microstructure
收稿日期: 2007-11-08     
ZTFLH:  TG115  
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