FTSR轧制BG510L钢的组织与性能分析

• 作 者: 周晓光 刘振宇 吴迪 王国栋 刘相华
• 机 构: 东北大学轧制技术及连轧自动化国家重点实验室,东北大学轧制技术及连轧自动化国家重点实验室,东北大学轧制技术及连轧自动化国家重点实验室,东北大学轧制技术及连轧自动化国家重点实验室,东北大学轧制技术及连轧自
• 出 处: 钢铁
• 发表日期: 2008年02期
• 关键词: 柔性化薄板坯连铸连轧 汽车大梁钢 显微组织 力学性能

结合FTSR薄板坯连铸连轧自身的特点,设计了轧制汽车大梁钢BG510L的化学成分和轧制工艺,并与用传统流程轧制的BG510L钢的金相组织和力学性能进行了对比。结果表明,与传统流程相比,FTSR薄板坯连铸连轧生产线轧制的BG510L钢的组织更为细小,但强度偏低,伸长率偏高,但均满足力学性能标准。通过优化化学成分和轧制工艺,使BG510L钢的强度得到了提高,力学性能更趋于稳定。

Combined with the characteristics of FTSR thin slab continuous casting and rolling, the chemical composition and rolling process of the steel beam BG4510L were designed and compared with that of the BG510L steel rolled by conventional process. The results show that compared with the traditional process, the structure of BG510L steel rolled by FTSR thin slab continuous casting and rolling production line is finer, but the strength is lower and the elongation is higher, but all meet the mechanical performance standard. By optimizing the chemical composition and rolling process, the strength of BG510L steel is improved and the mechanical properties tend to be stable.