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Modeling of Inclusion Formation during the Solidification of Steel

机译:钢凝固过程中夹杂物形成的模型

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摘要

A thermodynamic model coupling microsegregation and inclusion formation using one ChemSage data-file is proposed. The thermodynamic equilibrium is calculated using ChemApp to determine the liquidus temperature, solute partition coefficients at the solidification interface and inclusion formation in the residual liquid. During the calculations, solute enrichment is predicted using Ohnaka's model. The logarithm of the coupling microsegregation and inclusion formation is tested through an overall mass balance. With the proposed model, inclusion formation is predicted for the case of medium carbon steels alloyed with titanium and aluminum. The predicted types and compositions of inclusions agree well with the experimental results. Based on the predictions and measurements, the inclusion behavior during solidification is discussed.
机译:提出了使用一个ChemSage数据文件将微偏析与夹杂物形成耦合的热力学模型。使用ChemApp计算热力学平衡,以确定液相线温度,凝固界面处的溶质分配系数以及残留液体中的夹杂物形成。在计算过程中,使用Ohnaka模型预测溶质富集。通过整体质量平衡测试偶联微偏析和包裹体形成的对数。通过提出的模型,可以预测中碳钢与钛和铝合金化时夹杂物的形成。夹杂物的预测类型和组成与实验结果非常吻合。基于预测和测量,讨论了凝固过程中的夹杂行为。

著录项

  • 来源
    《ISIJ international》 |2016年第10期|1770-1778|共9页
  • 作者单位

    Chair of Ferrous Metallurgy, Montanuniversitat Leoben, Franz-Josef-Strasse 18, 8700 Leoben, Austria;

    Chair of Ferrous Metallurgy, Montanuniversitat Leoben, Franz-Josef-Strasse 18, 8700 Leoben, Austria;

    Chair of Ferrous Metallurgy, Montanuniversitat Leoben, Franz-Josef-Strasse 18, 8700 Leoben, Austria;

    Chair of Ferrous Metallurgy, Montanuniversitat Leoben, Franz-Josef-Strasse 18, 8700 Leoben, Austria;

    Chair of Ferrous Metallurgy, Montanuniversitat Leoben, Franz-Josef-Strasse 18, 8700 Leoben, Austria;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    inclusion; solidification; microsegregation; thermodynamic;

    机译:包含凝固;微偏析热力学;

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