Abstract
Aluminide coatings were obtained by means of the CVD–FBR technique at 525°C for 1.5 hr under a reactive-gas mixture composed of 10 vol.% H2+1 vol.% HCl, the rest being Ar as the fluidizing inert gas. Subsequent heat treatment at temperatures to 900°C was conducted to enhance interdiffusion of the components. As a result, substoichiometric Ni–Al phases were found to form. Uncoated and coated plus heat-treated specimens were then subjected to 950°C oxidation for up to about 200 hr under isothermal conditions. The coated plus heat-treated specimens had much lower oxidation rates than the uncoated ones because of the formation of protective alumina scales. Loss of protective behavior occurred only by spalling of the alumina scales upon cooling from the oxidation temperature. The higher oxidation rates of uncoated specimens have been attributed to nodule formation and minor subsequent spalling of the oxide scale.
Similar content being viewed by others
REFERENCES
N. Voudoris and G. N. Angelopoulos, High Temp. Mater. Proc. 2, 165 (1998).
M. Schütze, The Protectiûe Oxide Scales and Their Breakdown, D. R. Holmes, ed. (Wiley and The Institute of Corrosion, Chichester, 1997), p. 24.
C. Mennicke, E. Schumann, C. Ulrich, and M. Rühle, Mater. Sci. Forum 251–254, 389 (1997).
V. K. Tolypgo, J. R. Dryden, and D. R. Clarke, Acta Mater. 46, 927 (1998).
C. Sarioglu, J. R. Blachere, F. S. Pettit, and G. H. Meier, Microscopy of Oxidation 3, S. B. Newcomb and J. A. Pettit, eds. (The Institute of Materials, London, 1997), p. 41.
V. K. Tolypgo and D. R. Clarke, Mater. Sci. Eng. A, in press.
G. W. Goward, Surf. Coatings Technol. 108–109, 73 (1998).
A. Sanjurjo, K. H. Lau, and B. Wood, Surf. Coatings Technol. 54–55, 219 (1992).
K. H. Lau, A. Sanjurjo, and B. Wood, Surf. Coatings Technol. 54–55, 234 (1992).
S. Kinkel, G. N. Angelopoulos, and W. Dahl, Surf. Coatings Technol. 64, 119 (1994).
S. Kinkel, G. N. Angelopoulos, D. C. Papamantellos, and W. Dahl, Steel Res. 66(7), 318 (1995).
F. J. Pérez, M. P. Hierro, F. Pedraza, C. Gomez, M.C. Carpintero, and J. A. Trilleros, Surf. Coatings Technol. 120–121, 151 (1999).
L. Levin, A. Ginzburg, L. Klinger, T. Werber, A. Katsman, and P. Schaaf, Surf. Coatings Technol. 196, 209 (1998).
O. Kubaschewski, Iron-Binary Phase Diagrams (Springer-Verlag, Vienna, 1982), p. 5.
D. Li and D. Lin, Scripta Mater. 36(11), 1289 (1997).
M. A. Phillips and B. Gleeson, Oxid. Met. 50(5/6), 399 (1998).
S. Oki, S. Gohda, and G. Ueno, Surface Modification Technologies XI (The Institute of Materials, London, 1998), p. 246.
L. A. Willey, Metals Handbook, 8th edn. (ASM, Ohio, 1973), p. 382.
P. A. Choquet, E. R. Naylor, and R. A. Rapp, Mater. Sci. Eng. A121, 413 (1989).
Z. Liu and W. Gao, Oxid. Met. 54(3/4), 189 (2000).
N. S. Quan and D. J. Young, Oxid. Met. 25, 107 (1986).
B. Pieraggi, Oxid. Met. 27, 177 (1987).
H. Hindam and D. P. Whittle, Oxid. Met. 18, 767 (1982).
E. Otero, F. J. Pérez, M. P. Hierro, C. Gómez, F. Pedraza, J. L. de Segovia, and E. Román, Surf. Coatings Technol. 108–109, 127 (1998).
G. Aguilar, PhD Thesis, Université de Bourgogne, France (1991).
J. Stringer, Surf. Coatings Technol. 108–109, 1 (1998).
F. J. Pérez, F. Pedraza, M. P. Hierro, M.C. Carpintero, and C. Gómez, Surf. Coatings Technol., (in press) (2001).
T. F. An, H. R. Guan, X. F. Sun, and Z. Q. Hu, Oxid. Met. 54(3/4), 301 (2000).
F. H. Stott, G. C. Wood, and J. Stringer, Oxid. Met. 8, 113 (1995).
S. C. Tsai, A. M. Huntz, and C. Dolin, Mater. Sci. Eng. A. 212, 6 (1996).
P. Tomaszewick and G. R. Wallwork, Oxid. Met. 19, 165 (1983).
F. J. Pérez, M. J. Cristóbal, M. P. Hierro, G. Arnau, and J. Botella, Oxid. Met. 54(1/2), 87 (2000).
S. E. Sadique, M. A. H. Mollah, M. M. Ali, M. M. Haque, S. Basri, M. M. H. M. Ahmad, and S. M. Sapuan, Oxid. Met. 54(5/6), 385 (2000).
M. R. Brickey and J. L. Lee, Oxid. Met. 54(3/4), 237 (2000).
F. H. Stott and G. C. Wood, Mater. Sci. Eng. 87, 267 (1987).
S. E. Sadique, M. A. H. Mollah, M. M. Ali, M. M. Haque, S. Basri, M. M. H. M. Ahmad and S. M. Sapuan, J. Corros. Sci. Eng. 1 (2000), submitted for public revision.
G. C. Allen, B. R. Browsher, S. Dickinson, G. M. Fotios, A. L. Nichols, and R. K. Wild, Oxid. Met. 28, 33 (1987).
F. J. Pérez, M. J. Cristóbal, G. Arnau, M. P. Hierro, and J. J. Saura, Oxid. Met. 55(1/2), 105 (2001).
C. H. Yang, P. A. Labun, G. Welsch, and T. E. Mitchell, J. Mater. Sci. 22, 449 (1987).
J. Klower, Oxidation of Intermetallics, H. J. Grabke and M. Schutze, eds. (Wiley, New York, 1996), p. 203.
P. S. Liu, K. M. Liang, and S. R. Gu, Oxid. Met. 54(3/4), 277 (2000).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Pérez, F.J., Pedraza, F., Hierro, M.P. et al. Comparison of the High-Temperature Oxidation of Uncoated and CVD–FBR Aluminized AISI-304 Stainless Steel. Oxidation of Metals 58, 563–588 (2002). https://doi.org/10.1023/A:1020529223965
Issue Date:
DOI: https://doi.org/10.1023/A:1020529223965