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Oxidation of Na2SO4 coated Ni-20Cr-2ThO2

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Abstract

The Na2SO4-induced oxidation of Ni-20Cr-2ThO2 has been studied at 900° and 1000°C in 150 torr O2. A rapid weight-gain period, corresponding to NiO formation occurs after a short incubation period. The duration of the rapid weight gain stage persists for about 2 h and terminates with the development of a continuous Cr2O3 internal layer. Subsequent oxide formation is extremely slow, similar to that reported for normal oxidation of TD-NiCr.

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Authors and Affiliations

  1. Lynchburg Research Center, Babcock and Wilcox Company, 24505, Lynchburg, Va.

    Hubert H. Davis (Senior Research Engineer)

  2. Oxidation and Corrosion Research Group, Aerospace Research Laboratories, Wright-Patterson Air Force Base, 45433, Ohio

    Henry C. Graham (Research Physicist and Supervisor) & George F. Uhlig (Physical Chemist)

Authors
  1. Hubert H. Davis
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  2. Henry C. Graham
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  3. George F. Uhlig
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Davis, H.H., Graham, H.C. & Uhlig, G.F. Oxidation of Na2SO4 coated Ni-20Cr-2ThO2 . Metall Trans 3, 3247–3257 (1972). https://doi.org/10.1007/BF02661340

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  • DOI: https://doi.org/10.1007/BF02661340

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