Determinition of Optimal Coiling Temperature and Cold Reduction Ratio of Adding P High Strength IF Steel

摘要：

Hot rolled adding P high strength IF steel sheet was used to study the effect of coiling temperature and cold reduction ratio on the microstructures, mechanical properties and textures of experimental steel. The experimental results showed that the recrystallization has finished after cold rolling followed diffrenent cold reduction ratio and coiling temperature was from 550 °C to 600 °C under experimental condition. When the cold reduction ratio was increased, the grain changed fine and uniformity under diffrenent coiling temperature; The yield strength, tensile strength and elongation percentage were approximate 160 Mpa, 345 Mpa and 35.0 ％ respectively, under coiling temperature 600 °C and diffrenent cold reduction ratio condition, the plastic strain ratio r value and the strain hardening exponent n value were reached the maximum, respectively, the r value was approximate 1.5, the n value was approximate 0.30. When the coiling temperature was increased, the 111 < 110> texture of a skeleton lines was stronger. Therefore, the suggested the optimal coiling temperature is 600 °C, cold reduction ratio was 60 ％ to 70 ％, and it obtains optimally match of high strength and punching property.

关键词： high strength IF steel coiling temperature cold reduction ratio textures

作者: WANG Minli ZHENGZhiwang XIAO Li

作者单位: PanGang Group Research Institute Co., Ltd.,Chengdu 611731,Sichuan,China Hot Strip Mill of PanGang Group Panzhihua Steel& Vanadium Co., Ltd.Sichuan , Panzhihua 617062, Sichu

会议类型: 国际会议

会议名称: 2011 International Conference on Advanced Material Research(ICAMR 2011)(2011年先进材料研究国际会议)

会议地点: 重庆

会议语种:英文

页码: 465-469

在线出版日期: 2011-01-21（万方平台首次上网日期，不代表论文的发表时间）