SS400钢薄板坯高温塑性研究

连铸, 2008, (5): 33-37.

1.北京科技大学冶金与生态工程学院,北京,100053

2.中国金属学会,北京,100711

3.北京科技大学冶金与生态工程学院,北京,100053

4.北京科技大学冶金与生态工程学院,北京,100053

5.北京科技大学冶金与生态工程学院,北京,100053

Study on hot ductility of SS400 steel thin slab

通过Gleeble 1500拉伸实验机对CSP生产SS400钢的热塑性研究,确定在700～850℃之间为连铸坯的低温脆性区,并且塑性的降低主要是由于薄板坯中AIN的析出和晶界网状铁素体的形成造成的,提高连铸坯顶弯或矫直温度(>850℃)可以避免或减少连铸坯表面裂纹的产生.

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