Abstract
The aim of this paper is to discuss the applicability of different analytical techniques to study the corrosion phenomena and mechanisms of amorphous and nanocrystalline metallic alloys. We focus here on atmospheric corrosion of soft magnetic Fe-based materials prepared by a plane-flow casting method followed by annealing. The samples were exposed at rural and industrial sites for 2 to 6 months. The techniques of (conversion electron) Mössbauer spectrometry, X-ray diffraction and transmission electron microscopy are considered. These analytical techniques provide useful information regarding the nature, composition, morphology and crystallinity of the corrosion film and are, moreover, highly suitable for understanding the possible structural rearrangement of noncrystalline materials. Substantial differences in the corrosion resistance according to the alloy composition and crystallinity have been observed. The most resistant Si-containing, partly crystallized alloy proved the presence of a pure amorphous protective oxide film on the surface. Fe oxide particles in other systems showed a needle-like morphology and poor crystalline order and were identified as lepidocrocite.
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References
Fontana, M.G. (1987) Corrosion Engineering, McGraw-Hill Book Comp., New York.
Oh, S.J., Cook, D.C., and Townsend, H.E. (1999) Atmospheric corrosion of different steels in marine, rural and industrial environments, Corrosion Science 41, 1687–1702.
Sousa, C.A.C., Kiminami, C.S. (1997) Crystallization and corrosion resistance of amorphous FeCuNbSiB, J. Non-Cryst. Solids 219, 155–159.
Brand, R.A. (1987) NORMOS programs, internal report, Angewandte Physik, Universitat Duisburg (unpublished).
Greneche, J.M. (1997) Nanocrystalline iron-based alloys investigated by Missbauer spectrometry, Hyp. Interactions 110, 81–91.
Cornell, R.M., Schwertmann, U. (1996) The Iron Oxides, VCH Verlagsges. mbH, Weinheim.
Greneche, J.M., Miglierini, M., and Slawska-Waniewska, A. (2000) Iron based nanocrystalline alloys investigated by 57Fe MOssbauer spectrometry, Hyp. Interactions 126, 27–34.
Wu, Y.Q., Bitoh, T., Hono, K., Makino, A., and Inoue, A. (2001) Microstructure and properties of nanocrystalline Fe-Zr-Nb-B soft magnetic alloys with low magnetostriction, Acta Mater. 49, 4069–4077.
Sousa, C.A.C., Kuri, S.E., Politti, F.S., May, J.E., and Kiminami, C.S. (1999) Corrosion resistance of amorphous and polycrystalline FeCuNbSiB alloys in sulphuric acid solution, J. Non-Cryst. Solids 247, 69–73.
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© 2005 Kluwer Academic Publishers
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Sedlačková, K., Haider, F., Sitek, J., Seberíni, M. (2005). Application of Different Analytical Techniques in the Understanding of the Corrosion Phenomena of Non-Crystalline Alloys. In: Idzikowski, B., Švec, P., Miglierini, M. (eds) Properties and Applications of Nanocrystalline Alloys from Amorphous Precursors. NATO Science Series, vol 184. Springer, Dordrecht. https://doi.org/10.1007/1-4020-2965-9_21
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DOI: https://doi.org/10.1007/1-4020-2965-9_21
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-2963-9
Online ISBN: 978-1-4020-2965-3
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