Wettability of Al2O3, MgO and Ti2O3 by Liquid Iron and Steel

The wetting behavior of liquid iron and steel on Al2O3, MgO and Ti2O3 substrates was measured by using the sessile drop method. Measurements were carried out using a controlled oxygen partial pressure and using an argon protected atmosphere. For the Al2O3 and MgO substrates, reaction layers in form...

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Published inISIJ International Vol. 55; no. 9; pp. 1882 - 1890
Main Authors Xuan, Changji, Shibata, Hiroyuki, Sukenaga, Sohei, Jönsson, Pär Göran, Nakajima, Keiji
Format Journal Article
LanguageEnglish
Published The Iron and Steel Institute of Japan 01.01.2015
Subjects
Al2O3
contact angle
MgO
reaction layer
Ti2O3
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Summary:The wetting behavior of liquid iron and steel on Al2O3, MgO and Ti2O3 substrates was measured by using the sessile drop method. Measurements were carried out using a controlled oxygen partial pressure and using an argon protected atmosphere. For the Al2O3 and MgO substrates, reaction layers in form of FeAl2O4 and MgO–FeO (solid solution) were formed. These layers slightly decreased the contact angle and surface tension values after a full melting. For a Ti2O3 substrate in contact with pure Fe, no-reaction could be observed at the interface. Furthermore, the contact angle and surface tension values were almost stable after a full melting. For a Ti2O3 substrate in contact with steel, the contact angle and surface tension values decreased steeply after a full melting, due to the formation Al2TiO5 reaction layer formation at the interface.
ISSN:0915-1559
1347-5460
1347-5460
DOI:10.2355/isijinternational.ISIJINT-2014-820