Deoxidation and desulfurization of pressurized liquid high nitrogen stainless steels with calcium.
Year: 1990
Type: article
Abstract: High N-20Cr-10Ni stainless steels in the range of 0.25-0.7"/•Nwere melted by a high pressure induction furnace.These molten metals were deoxidized and desulfurized by calcium after pre-deoxidation by aluminum.It is concluded that the calcium addition is one of the most promising methods for desulfurization and deoxidation in the production of high nitrogen stainless steel by high pressure melting method.The interaction parameters eco', and ec* are obtained according to the Gustafsson's method, of which values are nearly equal to those proposed by Gustafsson.Theequilibrlum contents among Ca, S, O and Al componentsare computedusing the apparent equilibrium constants and the interaction param- eters obtained in the present study.The infiuence of aluminum on the calcium deoxidation and desulfurization is large, and therefore, pre-deoxidation by aluminum is important for the deoxidizing and desu!furizing process of calcium.
Source: ISIJ International
Authors: Kiyoshi Mineura, Ichirou Takahashi, Kouichi Tanaka
Language: English
Subfield: Metals and Alloys
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $700
OpenAlex ID: W1983283496