ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2011, Vol. 32 ›› Issue (3): 58-60.

• 组织和性能 • 上一篇    下一篇

热连轧E36船板钢连续冷却相变行为

胡海1,赵刚1,鲍思前1,叶传龙1,熊祥江2,李玲玲2,杨小军2   

  1. 1武汉科技大学材料与冶金学院,武汉430081;
    2湘潭钢铁集团有限公司科技开发中心,湘潭411101
  • 收稿日期:2010-12-13 出版日期:2011-06-01 发布日期:2022-10-18
  • 通讯作者: 赵 刚,教授,武汉科技大学材料和冶金学院,武汉430081
  • 作者简介:胡海(1985-),男,硕士研究生,2008年湖北汽车工业学院毕业,轧制过程计算机控制。

Transformation Behavior of Hot Continuous Rolling E36 Ship Plate during Continuous Cooling

Hu Hai1 , Zhao Gang1 , Bao Siqian1 , Ye Chuanlong1 , Xiong Xiangjiang2, Li Lingling2 , Yang Xiaojun2   

  1. 1 College of Material Science and Metallurgical Engineering, Wuhan University of Science and Technology, Wuhan 430081 ;
    2 Technological Center, Xiangtan Iron and Steel Group Co Ltd, Xiangtan 411101
  • Received:2010-12-13 Published:2011-06-01 Online:2022-10-18

摘要: 通过热模拟试验机模拟了20 mm E36船板钢(%:0.15C、0.38Si、1.56Mn、0.011P、0.002S、0.04Nb、0.06V、0.02Ti、0.037Als)经1 080℃和830~890℃分别以变形速率1 s-1变形30%的双道次轧制及冷却过程,测得连续冷却转变曲线,并研究终轧温度和轧后冷却速度(5~25℃/s)对该钢相变和组织的影响。结果表明,随着冷却速度的增加,相变开始温度降低,珠光体的体积分数减小,贝氏体的体积分数增大;随着终轧温度的降低,相变开始温度升高;铁素体晶粒随冷却速度的增加和终轧温度的降低而细化。

关键词: E36船板钢, 连续冷却转变曲线, 终轧温度, 冷却速度

Abstract: The double passes rolling and cooling process of 20 mm E36 ship plate steel (% : 0. 15C, 0. 38Si, 1.56Mn, 0.011P, 0. 002S, 0. 04Nb, 0. 06V, 0.02Ti, 0. 037Als) at 1 080 °C and 830 〜890 T respectively by 30% deformation at strain rate 1s-1 has been simulated by thermal simulator to get continuous cooling transformation curves and study effect of finishing roiling temperature and cooling speed (5 ~25 °C ) after rolling on transformation and structure of the steel. Results show that with increasing cooling speed the initial temperature of transformation decreases, the volume fraction of pearlite decreases and the volume fraction of bainite increases; with decreasing finishing temperature the initial temperature of transformation increases; and with increasing cooling speed and decreasing finishing temperature the ferrite grain size is finer.

Key words: E36 Ship Steel, Continuous Cooling Transformation Curve, Finishing Temperature, Cooling Rate