Abstract
The rehealing ability of the protective oxide scales formed on a microcrystalline coating of the Ni-base superalloy K38G has been studied. The results indicated that the oxide scales on the coating may be rehealed when the original scales are destroyed, and the coating still has excellent resistance against high-temperature oxidation. When the original Al2O3 oxide scales spall, mixed-oxide scales of both (Al, Cr)2O3 and TiO2 can form on the surface. The mixed scales are very protective and adherent.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Hanyi Lou, Fuhui Wang, Bangjie Xia, and Lixin Zhang,Oxid. Met. 38, 299 (1992).
Hanyi Lou, Fuhui Wang, Shenlong Zhu, Bangjie Xia, and Lixing Zhang,Surf. Coat. Technol. 63, 105 (1994).
Bangjie Xia, Hanyi Lou, and Lixin Zhang,Chin. J. Mater. Sci. Technol. 9, 116 (1993).
Hanyi Lou, Fuhui Wang, Bangjie Xia, and Lixin Zhang,Chin. J. Met. Sci. Technol. 8, 347 (1992).
J. A. Thornton, inDeposition Technologies for Films and Coatings, Developments and Applications, R. F. Bunshah, ed. (Noyes, NJ, 1982), p. 170.
C. Wagner,Z. Elektrochem. 63, 772 (1959).
S. W. Yang,Oxid. Met. 15, 375 (1981).
J. Litz, A. Rahmal, and M. Schorr,Oxid. Met. 30, 95 (1988).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Lou, H., Zhu, S. & Wang, F. Rehealing ability of oxide scales formed on microcrystalline K38G coatings. Oxid Met 43, 317–328 (1995). https://doi.org/10.1007/BF01047033
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF01047033