Abstract
Whiskers formed on the surface of a Ni-20Cr alloy during oxidation at high temperatures (1000 and 1200°C) were studied by scanning electron microscopy. The growth of these whiskers was attributed to the presence of water vapor in the atmosphere. The nature of these whiskers and their growth direction have been determined by electron diffraction with a transmission electron microscope (TEM). Their composition, determined by X-ray energy dispersive analysis (EDX), was NiCr2O4. The growth direction was of the (011) type.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
C. S. Giggins and F. S. Pettit,Trans. Metall. Soc. A.I.M.E. 245, 2495–2507 (1969).
G. C. Wood,Werks. Korros. No. 6, 431–503 (1971).
W. C. Hagel and A. V. Seybolt,J. Electrochem. Soc. 108, 1146–1152 (1961).
J. Stringer, B. A. Wilcox, and R. I. Jaffee,Oxid. Met. 11, 11–47 (1972).
I. G. Wright, B. A. Wilcox, and R. I. Jaffee,Oxid. Met. 3, 275–305 (1974).
P. Moulin, F. Armanet, G. Béranger, and P. Lacombe,Mem. Sci. Rev. Metall. 143–160 (March 1977).
F. Armanet, P. Moulin, A. M. Huntz, A. Vejux, and G. Béranger,Mem. Sci. Rev. Metall. 119–132 (February 1979).
F. Armanet, 3rd Cycle Thesis, Université de Technologie de Compiègne, France (1976).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Armanet, F., Vejux, A., Johannesson, G. et al. The composition and growth direction of whiskers obtained during oxidation at 1000 and 1200°C of a Ni-20Cr alloy in air containing water vapor. Oxid Met 15, 3–8 (1981). https://doi.org/10.1007/BF00603753
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00603753