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| 热磁耦合下淬火考虑相变的温度场有限元分析 | |
| 引用本文： | 刘美红,黎振华,陈君若,周荣,蔡仁良.热磁耦合下淬火考虑相变的温度场有限元分析[J].材料科学与工艺,2002,10(3):281-286. |
| 作者姓名： | 刘美红 黎振华 陈君若 周荣 蔡仁良 |
| 作者单位： | 1. 华东理工大学,机械工程学院,上海,200237 2. 清华大学,机械系,北京,100084 3. 昆明理工大学,机电工程学院,云南,昆明,650093 |
| 基金项目： | 云南省自然科学基金资助项目 |
| 摘 要： | 外加磁场淬火的温度场分布模拟是一个新的领域，研究了比热容在居里温度附近的突变，建立了外加磁场淬火时瞬态温度场和相变计算的数学模型；建立了包含磁场作用的热传导方程；建立了统一的有限元基本方程，得到热磁耦合作用下瞬态温度场的分布，并进行了测试。结果表明：外加磁场淬火后，冷却速度减小，冷却曲线变缓；工件的硬度略有上升。 |
| 关 键 词： | 热磁耦合 磁场淬火 比热容突变 温度场 相变 有限元 45钢 居里温度 计算机模拟 |
| 文章编号： | 1005-0299(2002)03-0281-06 |
| 修稿时间： | 2001年11月1日 |
Finite element analysis of temperature field during quenching by heat-magnetic coupling with the consideration of phase transformations |
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| LIU Mei-hong,LI Zhen-hua,CHEN Jun-ruo,ZHOU Rong,CAI Ren-liang.Finite element analysis of temperature field during quenching by heat-magnetic coupling with the consideration of phase transformations[J].Materials Science and Technology,2002,10(3):281-286. | |
| Authors: | LIU Mei-hong LI Zhen-hua CHEN Jun-ruo ZHOU Rong CAI Ren-liang |
| Abstract: | The distribution of the temperature field during magnetic field quenching is a kind of new research. In this paper, the abnormality of the specific heat is considered; the mathematical model of transient temperature field involving phase transformation is established. The heat exchange equation including magnetic field is founded and the finite element equation is set up. The distribution of transient temperature on the coupling effects of heat and magnetism is obtained. The results show that after magnetic field quenching the cooling velocity is decreased the cooling curve is flatten out and the hardness is slightly raised. |
| Keywords: | magnetic field quenching specific heat's abrupt change temperature field phase transforma- tion finite element |
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