Abstract
The Type II (700 °C) hot corrosion resistance of Ni–36Al (at.%) base alloys with various additions of Pt, Co, and/or Cr was investigated. It was found that the addition of either 5 at.% Pt or 5 at.% Cr was highly beneficial, i.e., extended the protective incubation stage. This was shown, via a thorough examination of the scales formed on these alloys during 700 °C oxidation, to be due to an enhanced ability to rapidly form a protective, pure Al2O3 scale. Addition of either 5 at.% Cr or 5 at.% Co to a Ni–36Al–5Pt alloy was found to be highly detrimental. These latter results are explained by examining subsurface phase transformations that occur during exposure; extensive transient oxidation was also found to play a significant role in the presence of Co.
Similar content being viewed by others
References
J. R. Nicholls, MRS Bulletin 28, 659 (2003).
G. J. Tatlock, T. J. Hurd, and J. S. Punni, Platinum Metals Review 31, 26 (1987).
E. J. Felten and F. S. Pettit, Oxidation of Metals 10, 189 (1976).
J. Schaeffer, G. M. Kim, G. H. Meier, and F. S. Pettit, in The Role of Active Elements in the Oxidation Behavior of High Temperature Metals and Alloys, ed. E. Lang (Elsevier, Amsterdam, 1989), pp. 231–267.
Y. Zhang, J. A. Haynes, W. Y. Lee, I. G. Wright, B. A. Pint, K. M. Cooley, and P. K. Liaw, Metallurgical and Materials Transactions A 32A, 1727 (2001).
J. A. Haynes, B. A. Pint, K. L. More, Y. Zhang, and I. G. Wright, Oxidation of Metals 58, 513 (2008).
H. Svensson, P. Knutsson, and K. Stiller, Oxidation of Metals 71, 143 (2009).
B. Gleeson, N. Mu, and S. Hayashi, Journal of Materials Science 44, 1704 (2009).
C. Leyens, B. A. Pint, and I. G. Wright, Surface and Coatings Technology 133–134, 15 (2000).
M. N. Task, B. Gleeson, F. S. Pettit, and G. H. Meier, Surface and Coatings Technology 206, 1552 (2011).
H. Lai, P. Knutsson, and K. Stiller, Materials at High Temperatures 28, 302 (2011).
K. L. Luthra, Metallurgical Transactions A 13A, 1843 (1982).
K. L. Luthra, Metallurgical Transactions A 13A, 1853 (1982).
Materials Preparation Center, Ames Laboratory USDOE, Ames, IA, USA. http://www.mpc.ameslab.gov.
K. L. Luthra and D. A. Shores, Journal of the Electrochemical Society 127, 2202 (1980).
C. S. Giggins and F. S. Pettit, Journal of the Electrochemical Society 118, 1782 (1971).
S. W. Guan and W. W. Smeltzer, Oxidation of Metals 42, 375 (1994).
S. Tin, L. Zhang, G. Brewster, and M. K. Miller, Metallurgical and Materials Transactions A 37A, 1389 (2006).
Task, M.N., Gleeson, B., Pettit, F.S., and G.H. Meier, unpublished research.
Acknowledgments
This work was funded by the U. S. Office of Naval Research under project number N00014-10-1-0661. We gratefully acknowledge Dr. David Shifler, the program manager for this project. Also, thanks are due to Prof. Arthur Heuer and Dr. David Hovis at Case Western Reserve University for the XPS and TOF–SIMS analyses.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Task, M.N., Gleeson, B., Pettit, F.S. et al. Compositional Factors Affecting Protective Alumina Formation Under Type II Hot Corrosion Conditions. Oxid Met 80, 541–552 (2013). https://doi.org/10.1007/s11085-013-9410-2
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11085-013-9410-2