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| 热轧螺纹钢筋连铸坯加热过程中奥氏体晶粒预测模型 | |
| 引用本文： | 朱国辉,完卫国,隋凤利,郭茂忠. 热轧螺纹钢筋连铸坯加热过程中奥氏体晶粒预测模型[J]. 安徽工业大学学报, 2011, 0(1) |
| 作者姓名： | 朱国辉 完卫国 隋凤利 郭茂忠 |
| 作者单位： | 安徽工业大学材料科学与工程学院;马鞍山钢铁股份有限公司技术中心; |
| 基金项目： | 国家支撑项目(2007DAE30B02) |
| 摘 要： | 利用有限元分析方法分析加热过程中螺纹钢连铸坯的温度分布随时间变化的规律。根据各节点温度与时间的关系,计算连铸坯各节点的加热速度,分析加热速度对奥氏体转变温度的影响规律。结果表明奥氏体化的温度与加热速度近似成线性关系。通过不同温度的中断淬火实验,研究奥氏体晶粒长大的动力学规律。结果表明,不同温度奥氏体晶粒长大激活能具有明显的差异。基于奥氏体晶粒长大和第二相粒子溶解之间的交互作用对不同温度奥氏体晶粒长大的动力学规律进行分析。 |
| 关 键 词： | 奥氏体晶粒尺寸 有限元分析 组织预报 |
Prediction of Austenite Grain Size during Heating in Hot-rolled Reinforced Bar |
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| ZHU Guo-hui,WAN Wei-guo,SUI Feng-li,GUO Mao-zhong. Prediction of Austenite Grain Size during Heating in Hot-rolled Reinforced Bar[J]. Journal of Anhui University of Technology, 2011, 0(1) | |
| Authors: | ZHU Guo-hui WAN Wei-guo SUI Feng-li GUO Mao-zhong |
| Affiliation: | ZHU Guo-hui~1,WAN Wei-guo~2,SUI Feng-li~1,GUO Mao-zhong~1 (1.School of Material Sciences and Engineering,Anhui University of Technology,Ma'anshan 243002,China,2. Technology Center of Ma'anshan Iron & Steel Co.Ltd.,Ma'anshan 243000,China) |
| Abstract: | The relationship between temperature distribution in casting slab and heating time was calculated by finite element method(FEM).Heating rate was calculated based on the distribution of temperature-time at each node of the casting slab.The effect of heating rate on austenizing temperature was investigated experimentally. The experimental results show that a linear relationship between austenizing temperature and heating rate was observed.Kinetics of austenite grain growth was analyzed by interrupt quenching ... |
| Keywords: | austenite grain size FEM analyze prediction of microstructure |
| 本文献已被 CNKI 等数据库收录！ | |