Abstract：In order to reveal formation mechanism of slab internal crack of the 0.1%C-5%Mn steel， structure and crack feature of this steel have been researched under different cooling models by using methods such as physical test， metallographic examination etc and designing heat simulation experiment. The results show that a lot of martensite and crack appeared in the slab when the cooling intensity was high.The higher the cooling intensity， the more martensite phase had and the greater the crack width. By using soft cooling or hot charging process， the martensite transformation caused by rapid cooling could be prevented and granular bainite structure could be formed， which could control appearance and extension of the internal crack.
收稿日期: 2014-07-28
出版日期: 2015-04-13
引用本文:
陶红标，张 慧，范 倚，王明林，马忠伟，赵 沛. 冷却模式对0.1%C-5%Mn钢的铸坯组织及内部裂纹的影响[J]. 钢铁, 2015, 50(4): 53-57.
TAO Hong-biao，ZHANG Hui，FAN Yi，WANG Ming-lin，MA Zhong-wei，ZHAO Pei. Effect of cooling model on slab structure and internal crack of 0.1%C-5%Mn steel. Iron and Steel, 2015, 50(4): 53-57.
2015, Vol. 50 
