Deoxidation Equilibrium of Manganese and Silicon in Liquid Iron-Nickel Alloys

Dashevskii, V. Ya.; Katsnelson, Alexander M.; Макарова, Н. Н.; Grigorovitch, K. V.; Kashin, V. I.

doi:10.2355/isijinternational.43.1487

Cited by 27 publications

(8 citation statements)

References 4 publications

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“…[21,24,25] Sudavstova and Batalin [26] observed strong negative deviations from Raoult's law in Pt-Si alloys, similar to data they showed for Fe-Si and Ni-Si alloys. Abraham et al, [20] Garbers-Craig and Dippenaar, [27] Rao and Gaskell, [28] and Smith and Davies [29] determined the activity coefficient of Mn in platinum dilute solution to be within the range of 10 -2 to 10 -4 .…”

Section: A Slag-substrate Reactionsupporting

confidence: 83%

“…Reduction of MnO and SiO 2 from the MnO-SiO 2 slag depends on the oxides stability, activity of MnO and SiO 2 in slag, and activity of Mn and Si in the metallic solution. MnO activity in the MS slag, measured in the literature [20][21][22][23] with a mole fraction of 0.55, is approximately 0.2 (standard-state solid MnO). Silica activity in this slag calculated by the Gibbs-Duhem integration was found near 0.6.…”

Section: A Slag-substrate Reactionmentioning

confidence: 99%

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Wettability of Solid Metals by Molten MnO-SiO2 Slag

Parry

Ostrovski

2008

Metall Mater Trans B

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An article presents results of a study of wetting of iron, nickel, and platinum substrates by molten MnO-SiO 2 slag of near-eutectic composition by the sessile-drop method in reducing atmosphere (oxygen partial pressure of 10 -20 to 10 -18 atm). Significant MnO reduction and manganese dissolution into substrate was observed in reactions with all three substrates. Silica also was reduced in reaction with Fe and Ni, although the extent of reduction was much smaller in comparison with MnO and was not observed in reaction with Pt. The dissolution of manganese led to modification of the interface with formation of molten phase for nickel and platinum substrates. Terminal contact angles (after 240 minutes) for MnO-SiO 2 slag were as follows: for iron substrates-5 ± 2 deg at 1350°C, 9 ± 2 deg at 1390°C, and 6 ± 2 deg at 1450°C; and for platinum-15 ± 2 deg at 1350°C and 1390°C, and 12 ± 2 deg at 1450°C. The contact angle for the Ni-(MnO-SiO 2 ) system was close to zero-3 ± 2 deg at 1350°C and 1390°C. Modification of the metal-oxide interface as a result of reduction of oxides and adsorption of oxygen made wetting dynamic and affected interfacial properties.

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Section: A Slag-substrate Reactionsupporting

confidence: 83%

Section: A Slag-substrate Reactionmentioning

confidence: 99%

Wettability of Solid Metals by Molten MnO-SiO2 Slag

Parry

Ostrovski

2008

Metall Mater Trans B

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“…Inasmuch as the quantity [%O] is small, we may assume that ≈ . This substitution does not introduce a noticeable error in the calculations [4,5]. Then,…”

Section: Thermodynamics Of Oxygen Solutions In Carbon-containing Fe-nmentioning

confidence: 97%

“…For silicon, The calculated equilibrium constants for reaction (1) at different nickel contents of the melt at 1873 K are presented in Table 1 and Fig. 1 in comparison with the data on oxygen solutions in Fe-Ni melts containing Mn [1,4], Cr [2], V [2], Si [1,4], Ti [2], and Al [2,5].…”

mentioning

confidence: 99%