The kinetics of growth and the critical conditions for the formation of the most-stable oxide in the oxidation of binary alloys
- Universita di Genova (Italy)
- Institute of Corrosion and Protection of Metals, Shenyang (China)
During the growth of the most-stable oxide BO[sub v] in the oxidation of binary alloys containing nonnoble components A and B, the oxygen pressure prevailing at the alloy-scale interface is higher than the corresponding value for equilibrium between BO[sub v] and pure B. The effects of this change on the rate constant for the growth of BO[sub v] and on the critical concentration of B in the bulk alloy required for the stability of BO[sub v] on its surface are examined and discussed. The general treatment is then applied to the growth of NiO on Cu-Ni alloys and of Cr[sub 2]O[sub 3] on Fe-Cr, Co-Cr, and Ni-Cr alloys by using appropriate defect models for these oxides, considering also the possibility of oxide doping.
- OSTI ID:
- 6740278
- Journal Information:
- Oxidation of Metals; (United States), Journal Name: Oxidation of Metals; (United States) Vol. 42:3-4; ISSN OXMEAF; ISSN 0030-770X
- Country of Publication:
- United States
- Language:
- English
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