| MB15合金等通道转角挤压组织模拟和实验分析 |
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| 引用本文： | 于彦东,周浩.MB15合金等通道转角挤压组织模拟和实验分析[J].中国有色金属学报,2011,21(2). |
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| 作者姓名： | 于彦东 周浩 |
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| 作者单位： | 哈尔滨理工大学,材料科学与工程学院,哈尔滨,150040 |
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| 基金项目： | 黑龙江省重点科技攻关资助项目(GB08A203) |
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| 摘 要： | 采用等通道转角挤压(ECAP)对MB15合金试样进行挤压,利用有限元软件DEFORM-3D进行ECAP晶粒组织模拟,探索采用有限元模拟与实验分析相结合的方法,研究镁合金ECAP成形过程的晶粒组织变化规律。模拟结果表明:数值模拟后试样从头部P1处、中部P2处到尾部P3处的晶粒组织细化程度明显减小,平均晶粒尺寸从初始的13.32μm减小到2.3~3.1μm;采用ECAP方法进行一道次挤压,试样的平均晶粒尺寸从13.32μm减小到2.2μm。对比数值模拟与实验分析结果表明:两者在晶粒细化程度上吻合良好。
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| 关 键 词： | MB15合金 等通道转角挤压(ECAP) 晶粒细化 模拟 |
Simulation and experiment analysis of grain structure of MB15 alloy prepared by equal-channel angular pressing |
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| YU Yan-dong,ZHOU Hao.Simulation and experiment analysis of grain structure of MB15 alloy prepared by equal-channel angular pressing[J].The Chinese Journal of Nonferrous Metals,2011,21(2). |
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| Authors: | YU Yan-dong ZHOU Hao |
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| Affiliation: | YU Yan-dong,ZHOU Hao(School of Materials Science and Engineering,Harbin University of Science and Technology,Harbin 150040,China) |
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| Abstract: | The process of equal channel angular pressing(ECAP) was numerically simulated using a finite element software Deform-3D to study the improvement and advancement of plastic processing performance.The method of the combining application of finite element simulation and experimental analysis was explored to investigate the variation of grain structure during the ECAP forming process of Mg alloy.The results show that the grain size of the sample in different zones reduce remarkably,following the sequence of P1,... |
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| Keywords: | MB15 alloy equal-channel angular pressing(ECAP) grain refinement simulation |
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