| 宝钢1880mm热轧试生产DP600双相钢的组织性能 |
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| 引用本文： | 唐文军,郑磊,王自强,郑芳.宝钢1880mm热轧试生产DP600双相钢的组织性能[J].宝钢技术,2010(2):45-48,53. |
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| 作者姓名： | 唐文军 郑磊 王自强 郑芳 |
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| 作者单位： | 宝山钢铁股份有限公司,营销管理部,上海,201900;宝山钢铁股份有限公司,研究院,上海,201900;宝山钢铁股份有限公司,热轧厂,上海,201900 |
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| 摘 要： | 采用Si-Mn系简单成分设计,充分发挥宝钢1 880 mm热连轧机组的密集冷却能力和卷取能力,通过密集水冷—空冷—水冷的三段式冷却模式和低温卷取,成功实现在1 880 mm机组工业试生产600 MPa级热轧双相钢。结果表明,通过合理的冷却速度、中间待温温度和待温时间配合,试验钢可获得铁素体和马氏体比例适合的双相组织,力学性能满足600 MPa级双相钢设计要求;同时试验发现,冷却和卷取工艺显著影响双相钢的微观组织和性能,因轧速变化造成钢卷头尾冷却条件不一致,导致钢卷不同位置力学性能波动较大。
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| 关 键 词： | 双相钢 微观组织 强度 相变 |
Microstructure and Mechanical Properties of DP600 Dual-phase Steel Trial-produced by Baosteel 1 880 mm Hot Rolling Mill |
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| TANG Wenjun,; ZHENG Lei,; WANG Ziqiang,and ZHENG Fang.Microstructure and Mechanical Properties of DP600 Dual-phase Steel Trial-produced by Baosteel 1 880 mm Hot Rolling Mill[J].Baosteel Technology,2010(2):45-48,53. |
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| Authors: | TANG Wenjun ; ZHENG Lei ; WANG Ziqiang and ZHENG Fang |
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| Affiliation: | 1.Marketing Administrative Dept; 2.Research Institute; 3.Hot Rolling Plant; Baoshan Iron & Steel Co.; Ltd.; Shanghai 201900; China); |
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| Abstract: | The hot-rolled dual-phase steel(600 MPa) was successfully trial-produced by Baosteel 1 880 mm hot rolling mill through intensive water cooling-air cooling-water cooling mode and low temperature coiling.It adopted the Si-Mn composition design and brings into full play the mill s intensive cooling and coiling abilities.The test results show that a reasonable cooling speed,intermediate holding temperature and time are the key factors to obtain hot-rolled dual-phase steel with a proportional ferrite plus marten... |
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| Keywords: | dual-phase steel microstructure strength phase transformation |
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