✦ LIBER ✦

Contributions of surface analysis to corrosion science: Selective dissolution and oxidation phenomena in alloy corrosion

✍ Scribed by D. Landolt

Publisher: John Wiley and Sons
Year: 1990
Tongue: English
Weight: 1005 KB
Volume: 15
Category: Article
ISSN: 0142-2421
DOI: 10.1002/sia.740150702

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✦ Synopsis

Abstract

The role for corrosion kinetics of corrosion‐induced surface composition changes on alloys is discussed and illustrated with surface analytical (AES, XPS, SIMS) and electrochemical (polarization behaviour) results from the author's laboratory. In situ oxidation of FeCrMo alloys, anodic dissolution in the active state of binary noble metal alloys (AgPd) and anodic dissolution in the passive state are compared. It is shown that selective oxidation and dissolution phenomena and differences in the transport rate of cations in thin oxide films control the chemical composition of the surface region and thus greatly affect the corrosion rate.

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