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A Comparison Of The Corrosion Behaviour Of Nanocrystalline And Normal Crystalline Nickel

Published online by Cambridge University Press:  25 February 2011

R. Rofagha ,
R. Langer ,
A. M. El-Sherik ,
U. Erb ,
G. Palumbo  and
K. T. Aust
R. Rofagha
Affiliation:
Department of Materials and Metallurgical Engineering, Queen's University, Kingston, CanadaK7L 3N6
R. Langer
Affiliation:
Department of Materials and Metallurgical Engineering, Queen's University, Kingston, CanadaK7L 3N6
A. M. El-Sherik
Affiliation:
Department of Materials and Metallurgical Engineering, Queen's University, Kingston, CanadaK7L 3N6
U. Erb
Affiliation:
Department of Materials and Metallurgical Engineering, Queen's University, Kingston, CanadaK7L 3N6
G. Palumbo
Affiliation:
Ontario Hydro Research Division, 800 Kipling Avenue, Toronto, Canada, M8Z 5S4
K. T. Aust
Affiliation:
Department of Metallurgy and Material Science, University of Toronto, Toronto, CanadaM5S 1A4
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Abstract

The effect of grain size on the corrosion behaviour of nickel in 2N sulphuric acid is evaluated by potentiodynamic testing and characterization of the corrosion morphology for grain sizes ranging from 100μ to 32nm. The influence of the grain boundary component on key electrochemical parameters (free corrosion potential, passivation current density and potential, transpassive dissolution rate) is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 238: Symposium Cb – Structure and Properties of Interfaces in Materials , 1991 , 751
Copyright
Copyright © Materials Research Society 1992

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References

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