Carbon activity in Fe-, Co-, Ni- and Mn-based melts at 1873 K

Katsnelson, Alexander M.; Dashevskiy, V. Y.; Kashin, V. I.

doi:10.1002/srin.199301008

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Figures 1 and 2 Demonstrate The Calculated Activities Of1

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Cited by 14 publications

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“…It is found from figure 7 that C content effectively reduces the required Raoultian activities of CrO and Cr01.s in thermodynamic equilibrium with Cr at fixed content in the melts. Therefore, low oxygen pressure and E) c c 20.40 [32] Cr -0.0023 [28] Cr -2.54…”

Section: Figures 1 and 2 Demonstrate The Calculated Activities Ofmentioning

confidence: 99%

Thermodynamic Assessment to Chromium Oxidation in the Production of Stainless Steel

Ma¹,

Janke

2003

steel research international

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A solution model called ε approach is applied to predict the thermodynamic solution behaviour of Cr in steel melts. The calculated results are supported by the available experimental results. Further predictions on chromium scorification are achieved in view of melting and refining processes for Cr‐containing steels. Chromium reduction from slags after meltdown during EAF melting and AOD or VOD refining treatment is important for the production of Cr‐containing steels. It is thermodynamically predicted that chromium is inevitably oxidized during decarburization process which coincides with the industrial and experimental results. Minimum oxidation of chromium can be reached by lowering the partial pressure of CO gas at high temperatures.

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Section: Figures 1 and 2 Demonstrate The Calculated Activities Ofmentioning

confidence: 99%