| 铁素体不锈钢焊接热影响区晶粒长大过程模拟 |
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| 引用本文： | 莫春立,李殿中,钱百年,国旭明.铁素体不锈钢焊接热影响区晶粒长大过程模拟[J].金属学报,2001,37(3):307-310. |
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| 作者姓名： | 莫春立 李殿中 钱百年 国旭明 |
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| 作者单位： | 中国科学院金属研究所，沈阳，110016 |
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| 基金项目： | 国家 973超级钢资助项目! G1998061512 |
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| 摘 要： | 提出一种用Monte Carlo模拟单相合金的热影响区（HAZ）晶粒长大方法，可以将焊接实际时间与模拟过程对应起来，应用有限元方法计算出焊接热循环，并结合晶粒长大的Arrhenius公式，模拟了铁素体不锈钢EB26-1在一定规范下HAZ晶粒的演变情况，模拟结果表明，此方法可以预测HAZ中晶粒的分布以及存在于HAZ中很陡的温度梯度对晶粒长大的阻碍作用。
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| 关 键 词： | Monte Carlo模拟 晶粒长大 焊接热影响区 铁素体不锈钢 |
| 文章编号： | 0412-1961(2001)03-0307-04 |
| 修稿时间： | 2000年6月26日 |
SIMULATION OF GRAIN GROWTH IN WELDING HAZ OF FERRITE STAINLESS STEEL |
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| MO Chunli,LI Dianzhong,QIAN Bainian,GUO Xuming.SIMULATION OF GRAIN GROWTH IN WELDING HAZ OF FERRITE STAINLESS STEEL[J].Acta Metallurgica Sinica,2001,37(3):307-310. |
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| Authors: | MO Chunli LI Dianzhong QIAN Bainian GUO Xuming |
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| Abstract: | A method of Monte Carlo about grain growth in welding heat affected zone of single phase alloy was developed. This model can obtain an one-to-one correlation between Monte Carlo steps and real time of welding. Using FEM the thermal cycles in the HAZ were calculated and according to Arrhenius equation of grain growth, the grain structure evolution in HAZ of ferrite stainless steel EB26-1 under certain process parameters was simulated. The results show that the grain size distribution in the welding HAZ could be obtained from Monte Carlo simulation, and the grain growth is restricted by the steep temperature gradients in the welding HAZ. |
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| Keywords: | Monte Carlo simulation grain growth heat affected zone (HAZ) ferrite stainless steel |
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