Viscous Flow Behaviors of Cr‐Bearing High‐Titanium Melting Slag with Different MgO Contents. Issue 7 (19th April 2020)

• Record Type: Journal Article
• Authors: Ma, Jing; Li, Wei; Fu, Guiqin; Zhu, Miaoyong
• Is Part Of: Steel research international. Volume 91:Issue 7(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-04-19
• Subjects: Cr-bearing high-titanium melting slags -- crystallization morphologies -- melting temperatures -- MgO -- viscosities; Steel -- Periodicals; Steel -- Metallurgy -- Periodicals; 669.142
• DOI: 10.1002/srin.202000025
• Languages: English
• ISSNs: 1611-3683

Abstract

Abstract : 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. Abstract : Herein, the viscous flow behaviors of Cr‐bearing high‐titanium melting slag are investigated with different MgO contents. The aim is not only to improve the physical properties of Cr‐bearing high‐titanium melting slag, but also promote the comprehensive utilization of Hongge vanadium titanomagnetite.