Effects of Annealing Process on Microstructure and Properties of SPCD Cold Rolled Steel Sheet Produced by CSP Technology

摘要：

Effects of slow heating rate, holding temperature and holding time on microstructure and properties of SPCD cold rolled sheet produced by CSP technology are investigated. During slow heating period, as the heating rate decreases from 50℃/h to 30℃/h, the value rm rises gradually, at the heating rate 30℃/h, the value rm and △r reach to 1.68 and 0.68,respectively. During holding period, with the holding temperature increasing from 660℃ to 700℃, the elongation and the value rm rise. The Specimens are held at 700℃ for 4, 6, 8, 10 and 12 hours, respectively, when holding time comes to 8 hours, the value rm, △r and elongation respectively reach to 1.77, 0.65 and 41.8%. As the slow heating rate decreases,holding temperature rises and the holding time prolongs, microstructure of the sheet appears obviously pie shape, the dimension of grains distributes much more reasonably.

关键词： CSP process SPCD annealing process microstructure properties

作者: CHENG Xiao-jie LIU Ya-zheng SUN You-bo WU Lei TIAN Rong-bin YAN Bo ZHANG Xiao-yan

作者单位: Department of Materials, University of Science and Technology Beijing, Beijing 100083, China Baotou Iron & Steel (Group) Co., Ltd., Compact Strip Production Plant, Baotou 014010, China

会议类型: 国际会议

会议名称: 2009年薄板坯连铸连轧国际研讨会(TSCR 2009)(2009 International Symposium on Thin Slab Casting and Rolling)

会议地点: 南京

会议语种:英文

页码: 280-285

在线出版日期: 2009-05-13（万方平台首次上网日期，不代表论文的发表时间）