Growth kinetics of passive films on Fe, FeNi, FeCr, FeCrNi alloys

K. N. Goswami; R. W. Staehle

doi:10.1016/0013-4686(71)85145-9

Growth kinetics of passive films on Fe, FeNi, FeCr, FeCrNi alloys

K. N. Goswami, R. W. Staehle

Chemical Engineering and Materials Science

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Abstract

The growth kinetics of passive films on Fe, Fe-10, Ni, Fe-10 Cr, Fe-10 Ni-10 Cr have been determined in pH 8·4 borate buffer solution at 25°C using ellipsometer and coulometric techniques. Films found on the alloys were progressively thinner as the alloy concentration was increased. The correlations with potential dependence suggest that the inverse logarithmic law may be applicable. The optical constants of the alloys in the film-free condition were similar but different from those of the films. The optical constants of the films on the alloys were similar.

Original language	English (US)
Pages (from-to)	1895-1907
Number of pages	13
Journal	Electrochimica Acta
Volume	16
Issue number	11
DOIs	https://doi.org/10.1016/0013-4686(71)85145-9
State	Published - Nov 1971

Bibliographical note

Funding Information:
Acknowledgments-The authors wish to acknowledge tirst the continuous support and encouragement of the Air Force Materials Laboratory, and specifically Drs. C. T. Lynch and H. P. Kirkpatrick, who supervised the contract. The work was supported under contract number F33(615)-69-C-1258 on the Air Force Materials Laboratory.

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N2 - The growth kinetics of passive films on Fe, Fe-10, Ni, Fe-10 Cr, Fe-10 Ni-10 Cr have been determined in pH 8·4 borate buffer solution at 25°C using ellipsometer and coulometric techniques. Films found on the alloys were progressively thinner as the alloy concentration was increased. The correlations with potential dependence suggest that the inverse logarithmic law may be applicable. The optical constants of the alloys in the film-free condition were similar but different from those of the films. The optical constants of the films on the alloys were similar.

AB - The growth kinetics of passive films on Fe, Fe-10, Ni, Fe-10 Cr, Fe-10 Ni-10 Cr have been determined in pH 8·4 borate buffer solution at 25°C using ellipsometer and coulometric techniques. Films found on the alloys were progressively thinner as the alloy concentration was increased. The correlations with potential dependence suggest that the inverse logarithmic law may be applicable. The optical constants of the alloys in the film-free condition were similar but different from those of the films. The optical constants of the films on the alloys were similar.

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Growth kinetics of passive films on Fe, FeNi, FeCr, FeCrNi alloys

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