| Mn18Cr18N钢热成形晶粒变化的模拟研究 |
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| 引用本文： | 陈慧琴 刘建生. Mn18Cr18N钢热成形晶粒变化的模拟研究[J]. 金属学报, 1999, 35(1): 53-56 |
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| 作者姓名： | 陈慧琴 刘建生 |
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| 作者单位： | 太原重型机械学院压力加工系 |
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| 摘 要： | 运用热耦合刚粘塑性有限元微观模拟技术，对Ｍｎ１８Ｃｒ１８Ｎ钢护环扩挤复合热成形和冷却过程进行了计算机模拟。得到了热力参数的分布状况和内部晶粒度变化的规律。当空冷约２１０ｓ时护环内晶粒可达细匀化。这为实现环的控制锻造与控制冷却，进而控制产品质量提供了理论依据。
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| 关 键 词： | Mn18Cr18N钢 热成形 有限元模拟 晶粒度 扩环钢 |
SIMULATION OF MICROSTRUCTURE EVOLUTION DURING HOT FORMING OF Mn18Cr18N RETAINING RING STEEL |
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| CHEN Huiqin,LIU Jiansheng,GUO Huiguang. SIMULATION OF MICROSTRUCTURE EVOLUTION DURING HOT FORMING OF Mn18Cr18N RETAINING RING STEEL[J]. Acta Metallurgica Sinica, 1999, 35(1): 53-56 |
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| Authors: | CHEN Huiqin LIU Jiansheng GUO Huiguang |
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| Affiliation: | CHEN Huiqin,LIU Jiansheng,GUO Huiguang Department of Metal Forming,Taiyuan Heavy Machinery Institute,Taiyuan 030024 |
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| Abstract: | Quantitative relationships for microstructure changes are corporated with thermo-coupled rigid visco-plastic finite element method to simulate exp anding-extrusion complex hot forming and cooling process of Mn18Cr18N retaining ring. The distribution of thermo-mechanical parameters and the regulation of grain size changes in retainig ring are obtained, and the grain is evenly refined at air cooling of 210 s. All of these provide theoretical basis for realizing control forging and control cooling, as well as control quality of retaining ring. |
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| Keywords: | steel Mn18Cr18N hot forming finite element simulation grain size |
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