Viscous Flow Behaviors of Cr‐Bearing High‐Titanium Melting Slag with Different MgO Contents,Steel Research International

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Viscous Flow Behaviors of Cr‐Bearing High‐Titanium Melting Slag with Different MgO Contents
Steel Research International ( IF 1.9 ) Pub Date : 2020-04-19 , DOI: 10.1002/srin.202000025
Jing Ma _{1,

2} , Wei Li _{1,

2} , Guiqin Fu _{1,

2} , Miaoyong Zhu _{1,

2}

Affiliation

Herein, the viscous flow behaviors of Cr‐bearing high‐titanium melting slag with different MgO contents are evaluated via thermodynamic calculation, melting temperature measurement, viscosity measurement, phase composition, and microcosmic analysis. The melting morphology of slag is observed in situ using the melting point melting rate tester, and the results show that the melting temperature decreases as a function of increasing MgO content. Simultaneously, the viscosity is obtained via the comprehensive melt property tester, which shows that the viscosity change trend is parallel to that of the melting point. FactSage thermodynamic software is used to predict the type and content of the precipitated phase. The composition and microstructure of the actual precipitated phase are assessed using X‐ray diffraction and scanning electron microscopy. Results show that anosovite is the most abundant precipitated phase. Furthermore, with the increase in MgO content, the precipitated contents of perovskite, spinel, and pyroxene increase; however, sphene and anorthite decrease.

中文翻译：

MgO含量不同的含Cr高钛熔渣的黏流行为

在此，通过热力学计算，熔融温度测量，粘度测量，相组成和微观分析，评估了不同MgO含量的含Cr高钛熔渣的粘性流动行为。使用熔点熔点测试仪就地观察了炉渣的熔化形态，结果表明，熔化温度随MgO含量的增加而降低。同时，通过综合熔融性能测试仪获得粘度，表明粘度变化趋势与熔点平行。FactSage热力学软件用于预测沉淀相的类型和含量。实际沉淀相的组成和微观结构使用X射线衍射和扫描电子显微镜进行评估。结果表明，凹凸棒石是最丰富的沉淀相。此外，随着MgO含量的增加，钙钛矿，尖晶石和辉石的沉淀含量增加；但是，蝶骨和钙长石减少。

更新日期：2020-04-19

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