A comparison of the corrosion behaviour of polycrystalline and nanocrystalline cobalt

The corrosion behaviour of polycrystalline (grain size: 8 μm) and nanocrystalline (grain size: 12 nm) Co was studied in 0.25 M Na 2SO 4 solution. It is shown that grain size reduction has little effect on the overall corrosion performance of Co. The role of S impurities in nanocrystalline Co is also...

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Bibliographic Details
Published in:Scripta materialia 2003-05, Vol.48 (9), p.1379-1384
Main Authors: Kim, S.H., Aust, K.T., Erb, U., Gonzalez, F., Palumbo, G.
Format: Article
Language:English
Subjects:
Applied sciences
Corrosion
Corrosion tests
Electroplating
Exact sciences and technology
Grain boundaries
Metals. Metallurgy
Nanocrystalline cobalt
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Summary:The corrosion behaviour of polycrystalline (grain size: 8 μm) and nanocrystalline (grain size: 12 nm) Co was studied in 0.25 M Na 2SO 4 solution. It is shown that grain size reduction has little effect on the overall corrosion performance of Co. The role of S impurities in nanocrystalline Co is also discussed.
ISSN:1359-6462
1872-8456
DOI:10.1016/S1359-6462(02)00651-6