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首页> 外文期刊>Combustion Science and Technology >A NUMERICAL MODEL FOR THE COMBUSTION SYNTHESIS OF TITANIUM ALUMINIDE IN THE SELF-PROPAGATING MODE
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A NUMERICAL MODEL FOR THE COMBUSTION SYNTHESIS OF TITANIUM ALUMINIDE IN THE SELF-PROPAGATING MODE

机译：自蔓延燃烧模式合成铝化钛的数值模型

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摘要

A numerical model was developed for the self-propagating high-temperature synthesis (SHS) of titanium aluminide from starting elemental powders. The energy equation coupled with the reaction kinetic equation was numerically solved. The calculated temperature-time results were in good agreement with available experimental data. The effect of such parameters as preheating temperature, green density of powder compact, titanium particle size, and effective duration of applying the ignition source on the process behavior was estimated by the model. The optimum value of process parameters to gain a self-sustaining reaction was determined under certain circumstances of the present study. Once properly modified, the model is applicable to predict the conditions suitable to utilize the SHS process for the synthesizing of other types of compounds with similar mechanism of formation.
机译：建立了一个数值模型，用于从起始元素粉末中自行繁殖高温合成铝化钛。数值方程与反应动力学方程耦合求解。计算得到的温度-时间结果与可用的实验数据高度吻合。通过模型估计了预热温度，粉末压坯的生坯密度，钛颗粒大小以及施加点火源的有效持续时间等参数对过程行为的影响。在本研究的某些情况下，确定了获得自持反应的过程参数的最佳值。一旦适当修改，该模型即可用于预测适合利用SHS工艺合成具有相似形成机理的其他类型化合物的条件。

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  • 来源
    《Combustion Science and Technology》 |2013年第9期|1118-1131|共14页
  • 作者

    M. Adeli; S. H. Seyedein; M. R. Aboutalebi;

  • 作者单位

    Center of Excellence for High Strength Alloys Technology (CEHAT), School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran 1684613114, Iran;

    Center of Excellence for High Strength Alloys Technology (CEHAT), School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran;

    Center of Excellence for High Strength Alloys Technology (CEHAT), School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran;

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

    Intermetallic; Kinetics; Mathematical modeling; Self-propagating high-temperature synthesis (SHS);

    机译：金属间化合物动力学;数学建模;自蔓延高温合成（SHS）;

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