研究了碳含量对低碳(锰)钢过冷奥氏体压缩变形过程中铁素体转变的影响.结果表明,锰含量相同时,碳含量提高,低碳钢形变强化相变孕育期延长,完成相变所需总应变增加,转变动力学曲线整体向高应变方向移动.铁素体在畸变能较高的铁素体/奥氏体相界前沿奥氏体区反复形核并以链状向奥氏体晶内推进,获得2～4 μm的微细等轴铁素体晶粒.碳含量提高有利于铁素体晶粒细化.
参考文献
| [1] | Sun ZQ.;Yang WY.;Qi JJ.;Hu AM. .Deformation enhanced transformation and dynamic recrystallization of ferrite in a low carbon steel during multipass hot deformation[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1/2):201-206. |
| [2] | 齐俊杰 .低碳钢过冷奥氏体形变过程组织演变[D].北京科技大学,2002. |
| [3] | 周荣锋,杨王玥,孙祖庆.不同Mn含量低碳钢过冷奥氏体形变过程中的铁素体相变[J].金属学报,2004(01):1-7. |
| [4] | R. HICKSON .The Effect of Chemistry on the Formation of Ultrafine Ferrite in Steel[J].ISIJ International,1999(11):1176-1180. |
| [5] | Pereloma EV.;Hodgson PD. .The effect of transformation path on the final microstructure of high- and low-silicon 0.1 wt.% C steels[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1998(1/2):30-39. |
| [6] | 章守华;吴承建.钢铁材料学[M].北京:冶金工业出版社,1992:30. |
| [7] | 章守华;吴承建.钢铁材料学[M].北京:冶金工业出版社,1992:37. |
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