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首页> 外文期刊>Military operations research >Finite element method simulation of phase transformations during cooling of 55SiMnMo steel
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Finite element method simulation of phase transformations during cooling of 55SiMnMo steel

机译：55SiMnMo钢冷却过程中相变的有限元模拟

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摘要

Purpose - This study aims to focus on numerical simulation investigations of phase transformation during cooling of 55SiMnMo steel, which is commonly applied to improve mechanical properties. Design/methodology/approach - A mathematical model based on the finite element method (FEM) and the phase transformation kinetics model has been proposed to predict microstructure changes during continuous cooling of 55SiMnMo steel. This model can be employed to analyze the variation of austenite, special upper bainite and lump-like composite structure with cooling time at different cooling rates. Finding - According to the continuous cooling experiments, when the cooling rate is lower than 0.1°C/s, the special upper bainite is the only transformation product which decreases with increasing cooling rate; when the cooling rate is above 0.5°C/s, the transformation products include special upper bainite and lump-like composite structure. Meanwhile, the results of continuous cooling experiment verified the correctness of this finite element model. Originality/value - This model has a great value for proper controlling of the cooling process which can improve the quality of hollow drill steel and increase the service life of the final product.
机译：目的-本研究的目的是集中于55SiMnMo钢冷却过程中相变的数值模拟研究，该合金通常用于改善机械性能。设计/方法/方法-已经提出了基于有限元方法（FEM）和相变动力学模型的数学模型来预测55SiMnMo钢连续冷却过程中的组织变化。该模型可用于分析不同冷却速率下奥氏体，特殊上贝氏体和块状复合结构随冷却时间的变化。发现-根据连续冷却实验，当冷却速率低于0.1°C / s时，特殊的上贝氏体是唯一随冷却速率增加而降低的转变产物。当冷却速率高于0.5℃/ s时，转变产物包括特殊的上贝氏体和块状复合结构。同时，连续冷却实验的结果验证了该有限元模型的正确性。独创性/价值-该模型对于正确控制冷却过程具有重要价值，可以改善空心钻钢的质量并延长最终产品的使用寿命。

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  • 来源
    《Military operations research》 |2017年第4期|289-296|共8页
  • 作者

    YAN Tao; Ma Liang; Zhao Shuo; Yu Enlin;

  • 作者单位

    College of Mechanical Engineering, Yanshan University, Qinhuangdao, China,College of Materials Science and Engineering, Hebei University of Engineering, Handan, China;

    College of Materials Science and Engineering, Hebei University of Engineering, Handan, China;

    College of Materials Science and Engineering, Hebei University of Engineering, Handan, China;

    College of Mechanical Engineering, Yanshan University, Qinhuangdao, China,National Engineering Research Center for Equipment and Technology of Cold Stripe Rolling, Yanshan University, Qinhuangdao, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Finite element method; Microstructure transformation; Phase transformation kinetic; Special upper bainite;

    机译：有限元法;显微组织转变;相变动力学;特殊上贝氏体;

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