| 柔性薄板热轧Q345B汽车大梁板的组织与性能研究 |
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| 引用本文： | 冯运莉,陈华辉,王成,陈礼斌. 柔性薄板热轧Q345B汽车大梁板的组织与性能研究[J]. 金属热处理, 2006, 31(6): 25-27 |
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| 作者姓名： | 冯运莉 陈华辉 王成 陈礼斌 |
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| 作者单位： | 中国矿业大学(北京校区)材料科学与工程系,北京,100083;河北理工大学金属材料工程系,河北唐山,063009;中国矿业大学(北京校区)材料科学与工程系,北京,100083;河北理工大学金属材料工程系,河北唐山,063009;唐山钢铁有限公司,河北唐山,063016 |
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| 基金项目： | 河北省唐山市科学技术研究与发展指导计划 |
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| 摘 要： | 采用光学显微镜、扫描电镜、透射电镜和拉伸试验等方法研究了柔性薄板（FTSR）线生产的Q345B汽车大梁板的组织和性能，测定了钢板的应变硬化指数n。结果表明，FTSR线生产的Q345B钢板组织比较细小、均匀，沿铁素体晶界析出碳化物，钢中有害元素含量较低，钢板的强度和伸长率高，且具有优良的成形性和冲击性能。
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| 关 键 词： | 柔性薄板(FTSR) 热轧 显微组织 力学性能 成形性 冲击性能 |
| 文章编号： | 0254-6051（2006）06-0025-03 |
| 收稿时间： | 2005-12-26 |
| 修稿时间： | 2005-12-26 |
Microstructure and Properties of Q345B Truck Frame Strip Produced by FTSR Hot Rolling Technology |
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| FENG Yun-li,CHEN Hua-hui,WANG Cheng,CHEN Li-bin. Microstructure and Properties of Q345B Truck Frame Strip Produced by FTSR Hot Rolling Technology[J]. Heat Treatment of Metals, 2006, 31(6): 25-27 |
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| Authors: | FENG Yun-li CHEN Hua-hui WANG Cheng CHEN Li-bin |
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| Abstract: | The microstructure and mechanical properties of Q345B truck frame strip produced by I;TSR hot rolling technology were studied by OM, SEM and TEM and tensile tests, the value of the strain hardening exponent n was determined. The results show that the microstructure of Q345 B steel strip produced by I;TSR hot rolling technology is fine and uniform and the second-phase particles precipitate along ferrite grain boundaries as well as the low quantity of deleterious components,thereby the strength and total elongation of Q345 B strip are high,and the formability and impact toughness of the products are excellent. |
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| Keywords: | flexible thin slab bolling(FTSR) hot rolling technology microstructure mechanical properties formability impact toughness |
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