Kolpishon E.Y.,State Scientific Center TsNIITMASh |
Mal'ginov A.N.,State Scientific Center TsNIITMASh |
Romashkin A.N.,State Scientific Center TsNIITMASh |
Durynin V.A.,State Scientific Center TsNIITMASh |
And 4 more authors.
Russian Metallurgy (Metally) | Year: 2010
The behavior of oxygen in the course of manufacturing large steel ingots containing 1.5-20% Cr, the formation of oxides depending on the contents of deoxidizing agents and oxygen, and the composition of the oxide phase in ingots and forgings made of the steel are considered. The steel is manufactured using an arc steel-melting furnace and unit for complex treatment of steel (ASF-ACSPU technology) and the ASF-ACSPU technology and electroslag remelting (ESR). It is shown that the oxide phase composition depends on the contents of strong deoxidizing agents and oxygen and the development of secondary oxidation. Chromium- and manganese-containing spinels are characteristic species of the secondary and tertiary oxides in the chromium steel in the case of deficient aluminum and silicon. © 2010 Pleiades Publishing, Ltd.