DP600双相钢热轧工艺参数的模拟优化
Simulation Optimum of Technological Parameters for Hot Rolled DP600 Steel
摘 要
利用Gleeble-3800型热模拟试验机测定了DP600双相钢压缩变形后动态连续冷却转变(CCT)曲线, 并模拟其热轧生产工艺过程以研究轧制工艺参数对显微组织的影响, 进而优化轧制工艺参数结果表明: CCT曲线上存在独立的铁素体区和贝氏体区, 在两区中间存在较宽的奥氏体稳定区; 轧制工艺参数对显微组织有明显的影响, 试验钢850 ℃终轧后以1 ℃·s-1的冷却速率从750 ℃冷至710 ℃后再快冷至600 ℃卷取所得到钢板的显微组织最优。
动态CCT曲线
优化
工艺参数
dual-phase steel
dynamic CCT curve
optimum
technological parameter
Abstract
Dynamic continuous cooling transformation (CCT) curves of DP600 steel were determined on Gleeble-3800 thermal simulator. The hot rolled process were simulated to study the effect of rolling parameters on microstructure, and to optimize rolling parameters. The results show that there were self-exist ferrite region and bainite region on CCT curves, and broader steady austenite region existed in the region above-mentioned. The effect of the rolling parameters on the microstructure was obvious, and the best microstructure was obtained when the tested steel was cooled from 750 ℃ to 710 ℃ at a cooling rate of 1 ℃·s-1, and then cooled quickly to 600 ℃ to coil after end-rolling at 850 ℃.
中图分类号 TG113.1
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收稿日期 2010/10/17
修改稿日期 2011/6/22
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备注李桂艳(1964-), 女, 辽宁鞍山人, 高级工程师, 学士。
引用该论文: LI Gui-yan,LIU Feng-lian,SHI Xiao-guang,ZHAO Bao-chun,YANG Jing. Simulation Optimum of Technological Parameters for Hot Rolled DP600 Steel[J]. Materials for mechancial engineering, 2011, 35(11): 103～105
李桂艳,刘凤莲,时晓光,赵宝纯,杨静. DP600双相钢热轧工艺参数的模拟优化[J]. 机械工程材料, 2011, 35(11): 103～105
被引情况:
【1】金光灿,李锦,罗一平, "部分奥氏体化和完全奥氏体化铁素体/马氏体双相钢的CCT曲线",机械工程材料 39, 27-32(2015)
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参考文献
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【2】KOT R A, BRAMFITT B L. Fundamentals of dual-phase steels [M]. Warrendale,PA: Metallurgical Society of AME,2003.
【3】张梅,符仁钰,许洛萍.汽车用双相钢钢板的发展[J]. 热处理,2001(1):5-8.
【4】ESSADIQI E, VOYZELLE B, KAOV,et al.Phase transformation and processing of high strength dual phase steel [C]//45th MWSP Conference Proceedings. [s.l.]:[s.n.],2003,XLI: 391-402.
【5】DAVIES R G.On the ductility of dual phase steels[C]// Formable HSLA and Dual Phase steels.Chicago,Illinois:[s.n.]1977,10:25-39.
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