Effects of Mo on the Passive Films Formed on Ni-(15, 30)Cr-5Mo Alloys in pH 8.5 Buffer Solution

다국어 초록 (Multilingual Abstract)

The composition and semiconducting properties of the passive films formed on Ni-
(15, 30)Cr-5Mo alloys in pH 8.5 buffer solution were examined. The depth concentration profile
of passive films formed on Ni-(15, 30)Cr-5Mo in pH 8.5 buffer solution showed that Mo
enhances the enrichment of Cr. The Mott-Schottky plot for the passive film on Ni-(15, 30)Cr-
5Mo closely resembled that for the film on Cr, whereas those for the less Cr-enriched film
on Mo-free alloys showed similar behavior to that for the film on Ni. The acceptor density
was reduced by increasing Cr content in Ni-(15, 30)Cr-(0, 5)Mo alloys, but addition of Mo
considerably increased the acceptor density.

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