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首页> 外文期刊>Metallurgical and Materials Transactions B >Prediction of deoxidation and inclusion precipitation in semikilled steel
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Prediction of deoxidation and inclusion precipitation in semikilled steel

机译：半镇静钢中脱氧和夹杂物沉淀的预测

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摘要

A generalized thermodynamic calculation procedure for the prediction of oxide inclusion precipitation of desired compositions for Mn-Si-Al deoxidation has been developed. The procedure directly uses established ternary iso-activity diagrams in the MnO-SiO2-Al2O3 system, and does not assume any slag model. The thermodynamic data required for calculation, such as deoxidation constants, interaction coefficients, and activity vs composition relations in the oxide phase, reported in the literature, were examined and the ones considered to be most satisfactory were accepted. On the basis of the computed results for inclusions in the spessartite phase field of the MnO-SiO2-Al2O3 system, discussions have been presented on the applicability of the regular solution model as well as an empirical model reported in the literature. Some predictions for plain carbon steels have also been included.
机译：已经开发了用于预测锰-硅-铝脱氧所需成分的氧化物夹杂物沉淀的通用热力学计算程序。该方法直接在MnO-SiO2 -Al2 O3 系统中使用已建立的三元等活度图，并且不假定任何渣模型。计算所需的热力学数据，如脱氧常数，相互作用系数以及氧化物相中的活度与组成关系，已得到了文献报道，并被认为是最令人满意的。基于对MnO-SiO2 -Al2 O3 系统的镁铝矿相场中夹杂物的计算结果，对正溶液模型的适用性也进行了讨论。作为文献报道的经验模型。普通碳素钢的一些预测也已包括在内。

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  • 来源
    《Metallurgical and Materials Transactions B》 |2005年第1期|59-66|共8页
  • 作者

    S. K. Choudhary; S. Chandra; A. Ghosh;

  • 作者单位

    the Research and Development Division Tata Steel 831 001 Jamshedpur India;

    the Research and Development Division Tata Steel 831 001 Jamshedpur India;

    Department of Materials and Metallurgical Engineering JIT Kanpur 208 016 Kanpur India;

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