The relationships between anodic passivity, brightening and pitting*

作者: T.P. Hoar , D.C. Mears , G.P. Rothwell

DOI: 10.1016/S0010-938X(65)90614-1

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摘要: Anodic passivity is produced by the formation on the anode surface of very thin oxide films of low ion conductivity. Anodic brightening occurs by the passage of cations into and through very thin compact solid films, of relatively high cation conductivity, which are not plain oxide, but “contaminated” oxide containing foreign anions. Breakdown of anodic passivity in solutions containing chloride or similar aggressive anions at and above a critical anode potential is caused by field-stimulated anion entry into the passivating oxide film at singular …

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