|
|||||
|
|
| 轧制工艺对CSP线热轧汽车用高强钢板组织特征的影响 | |
| 引用本文： | 康永林,赵征志,于浩,毛新平,傅杰.轧制工艺对CSP线热轧汽车用高强钢板组织特征的影响[J].北京科技大学学报,2007,29(1):30-33. |
| 作者姓名： | 康永林 赵征志 于浩 毛新平 傅杰 |
| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京,100083 2. 广州珠江钢铁有限责任公司,广州,510730 3. 北京科技大学冶金与生态工程学院,北京,100083 |
| 摘 要： | 研究了薄板坯连铸连轧(CSP)工艺生产高强度汽车用大梁板的工艺控制参数与力学性能和显微组织间的关系.根据柔性工艺控制的指导思想,在珠钢电炉CSP流程下实现了生产不同级别高强度钢板的柔性轧制工艺.利用扫描电镜和透射电镜研究了其组织和强度差异产生的原因.研究表明,钢板最终组织为多边形铁素体和少量珠光体组成,平均铁索体晶粒尺寸约为3.7～5.6μm;当降低卷取温度,部分渗碳体已破碎成细小的碳化物粒子分布于铁素体基体上,钢板中有少量贝氏体出现. |
| 关 键 词： | 汽车大梁板 薄板坯连铸连轧(CSP) 显微组织 力学性能 工艺参数 轧制工艺 热轧 汽车用 高强钢板 组织特征 影响 steels beam automobile high strength characteristics processing parameters 贝氏体 铁素体基体 粒子分布 碳化物 渗碳体 卷取温度 晶粒尺寸 体组成 |
| 修稿时间： | 2005-10-18 |
Effects of processing parameters on the microstructural characteristics of high strength automobile beam steels produced by CSP |
|
| KANG Yonglin,ZHAO Zhengzhi,YU Hao,MAO Xinping,FU Jie.Effects of processing parameters on the microstructural characteristics of high strength automobile beam steels produced by CSP[J].Journal of University of Science and Technology Beijing,2007,29(1):30-33. | |
| Authors: | KANG Yonglin ZHAO Zhengzhi YU Hao MAO Xinping FU Jie |
| Institution: | 1 Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China; 2 Guanzhou Zhujiang Iron and Steel Co. Ltd., Guangzhou 510730, China ;3 Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China |
| Abstract: | The effects of controlled rolling and controlled cooling parameters on the microstructure and mechanieal properties of high strength automobile beam steels produced by CSP technology were investigated. According to the theory of flexible technology, the processing of automobile beam steels with different strength grades by EAF-CSP technology was developed in Zhujiang Steel, China. The differences of microstructure and strength were analyzed by using scanning electron microscopy and transmission electron microscopy. It is shown that the final microstructure is mainly of polygonal ferrite and some pearlite, and the average ferrite grain size is about 3.7-5.6 pro. With decreasing coiling temperature, the cementite lamella of hot strips is fractured and transformed into discrete cementite particles, which is distributed throughout the ferrite matrix. It is also noticed that some granular bainite appears in the microstructure. |
| Keywords: | automobile beam steel compact strip production (CSP) microstructure mechanical properties processing parameters |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |