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Equilibrium Relationship between the Oxide Compounds in MgO-Al2O3-Ti2O3 and Molten Iron at 1 873K
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.
2010 (English)In: ISIJ International, ISSN 0915-1559, Vol. 50, no 12, 1955-1958 p.Article in journal (Refereed) Published
Abstract [en]

It is important to determine the equilibrium relationship between the oxide compounds in MgO-Al2O3-Ti2O3 and molten iron to avoid Al2O3 or MgO Al2O3 formation and for inclusion control In this study we investigated the formation conditions of MgTi2O4 in preference to MgAl2O4 at 1 873 K The phase stability regions of MgAl2O4 and MgAl2O4 or Ti2O3 were determined at 1 873 K in MgO-Al2O3-Ti2O3 At a low titanium content of less than 0 1 mass% and when [mass ppm Mg]=3 MgAl2O4 forms at more than [massc%Al]=0 08 and the region of MgAl2O4 formation widens as the titanium content of the molten iron decreases Accordingly it is necessary to lower the Al content and to adjust the Ti content to an appropriate concentration range to form MgTi2O4 instead of MgAl2O4

Place, publisher, year, edition, pages
2010. Vol. 50, no 12, 1955-1958 p.
Keyword [en]
inclusion, steelmaking, deoxidation, equilibrium
National Category
Metallurgy and Metallic Materials
URN: urn:nbn:se:kth:diva-30540ISI: 000285666400035ScopusID: 2-s2.0-79952058758OAI: diva2:401679
QC 20110303Available from: 2011-03-03 Created: 2011-02-28 Last updated: 2011-03-03Bibliographically approved

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