Abstract
The oxidation of TD NiCr (Ni-20 wt. % Cr-2ThO2) has been investigated between 900 and 1200°C, and the oxidation behavior is compared with Ni-30 wt. % Cr and Co-35 wt. % Cr alloys. All alloys develop Cr2O3 scales but the weight changes obtained for the NiCr and CoCr alloys show an increase with time whereas above 1000° C the TD NiC shows a progressive loss in weight from the evaporation of CrO3 from the scale, and the reaction products appear to be formed mainly at the alloy-scale interface. However, no mechanism for its formation has been established.
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Wallwork, G.R., Hed, A.Z. The oxidation of Ni-20 wt. % Cr-2ThO2 . Oxid Met 3, 229–241 (1971). https://doi.org/10.1007/BF00603523
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DOI: https://doi.org/10.1007/BF00603523