Reaction Behaviors of Al-Killed Medium-Manganese Steel with Different Refractories
- Northeastern University, School of Metallurgy (China)
In order to understand the reaction mechanism between medium-manganese steel and different refractories, some laboratory experiments were carried out at 1873 K (1600 °C). Three types of refractory plates (Al{sub 2}O{sub 3}, MgO, and MgO·Al{sub 2}O{sub 3}) were used. The results show that Mn in liquid medium-manganese steel does not react easily with the Al{sub 2}O{sub 3} refractory, but can react with the MgO refractory to generate a (Mn, Mg)O layer at the boundary between the refractory plate and liquid steel. After the formation of (Mn, Mg)O, a layer of (Mn, Mg)O·Al{sub 2}O{sub 3} spinel is also formed at the edge of the MgO refractory. Similar to the MgO refractory, the dissolved Mn can react with the MgO·Al{sub 2}O{sub 3} refractory as well, and a layer of (Mn, Mg)O·Al{sub 2}O{sub 3} was also detected after reaction. It was found that the formation of (Mn, Mg)O·Al{sub 2}O{sub 3} at the edge of the refractory is a source of (Mn, Mg)O·Al{sub 2}O{sub 3} inclusions in liquid steel. The flush-off of the (Mn, Mg)O·Al{sub 2}O{sub 3} layer would result in the formation of (Mn, Mg)O·Al{sub 2}O{sub 3} inclusions.
- OSTI ID:
- 22857953
- Journal Information:
- Metallurgical and Materials Transactions B, Process Metallurgy and Materials Processing Science, Journal Name: Metallurgical and Materials Transactions B, Process Metallurgy and Materials Processing Science Journal Issue: 3 Vol. 49; ISSN 1073-5615; ISSN MTBSEO
- Country of Publication:
- United States
- Language:
- English
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