通过铸坯的高温力学性能测试及缺陷表面SEM分析等手段研究了SS400含硼钢角横裂纹的形成原因,提出了成分调整配合相应工艺调整的解决方案.通过不同成分试样的高温力学性能测试结果对比发现,不同碳含量铸坯第Ⅲ脆性区间明显不同.随着碳含量增加,第Ⅲ脆性区左移.根据试验结果调整了SS400含硼钢成分体系,采取减弱铸坯角部冷却强度等方法,有效地避免了SS400含硼钢铸坯角横裂纹的发生.
参考文献
| [1] | Mintz B.Hot Ductility of Directly Cast C Mn-Nb-Al Steel[J].Materials Science and Technology,1986(02):589. |
| [2] | Yoshie A .Modelling of Microstructural Evolution and Mechanical Properties of Steel Plates Produced by Themo-Mechanical Control Process[J].ISIJ International,1992,32(03):395. |
| [3] | S. F. MEDINA;J. E. MANCILLA .Static Recrystallization Modelling of Hot Deformed Steels Containing Several Alloying Elements[J].ISIJ International,1996(8):1070-1076. |
| [4] | Mintz B .The Influence of Composition on the Hot Ductility of Steels and to the Problem of Transverse Cracking[J].ISIJ International,1999,39(09):833. |
| [5] | Mintz B.Hot Ductility Behavior of C-Mn-Nb-Al Steels and Its Relationship to Crack Propagation During the Straightening of Continuously Cast Strand[J].Metals and Technology,1979(01):24. |
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