TECHNICAL PAPERS: Gas Turbines: Manufacturing, Materials, and Metallurgy

Aluminizing Behaviors of Vacuum Plasma Sprayed MCrAlY Coatings

[+] Author and Article Information
Y. Itoh, M. Saitoh, Y. Ishiwata

Metal and Ceramics Technology R&D Department, Toshiba Corporation, 2-4 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan

J. Eng. Gas Turbines Power 124(2), 270-275 (Mar 26, 2002) (6 pages) doi:10.1115/1.1423914 History: Received December 01, 2000; Revised February 01, 2001; Online March 26, 2002
Copyright © 2002 by ASME
Your Session has timed out. Please sign back in to continue.


Bettridge,  D. F., and Ubank,  R. G., 1986, “Quality Control of High-Temperature Protective Coatings,” Mater. Sci. Technol., 2, pp. 232–242.
Mevrel,  R., 1989, “State of the Art on High-Temperature Corrosion-Resistant Coatings,” Mater. Sci. Eng., A, A120, pp. 13–24.
Nicholls,  J. R., and Stephenson,  D. J., 1991, “High Temperature Coatings for Gas Turbine,” Surf. Eng., 22, pp. 156–163.
Das,  D. K., Singh,  V., and Joshi,  S. V., 1998, “Evolution of Aluminide Coating Microstructure on Nickel-Base Cast Superalloy CM-247 in a Single-Step High-Activity Aluminizing Process,” Metall. Mater. Trans. A, 29A, pp. 2173–2188.
Duvall, D. S., and Ruckle, D. L., 1982, “Ceramic Thermal Barrier Coatings for Turbine Engine Components,” ASME Paper 82-GT-322.
Miller,  A. M., 1987, “Current States of Thermal Barrier Coatings—An Overview,” Surf. Coat. Technol., 30, pp. 1–11.
Wortman,  D. J., Nagaraj,  B. A., and Duderstadt,  E. C., 1989, “Thermal Barrier Coatings for Gas Turbine Use,” Mater. Sci. Eng., A, A121, pp. 433–440.
Wu,  B. C., Chao,  C. H., and Chang,  E., 1990, “Effect of Bond Coat Pre-Aluminizing Treatment on the Properties of ZrO2–8wt.%Y2O3/Co-29Cr-6Al-1Y Thermal Barrier Coatings,” Mater. Sci. Eng., A, A124, pp. 215–221.
Mazars, P., Manesse, D., and Lopvet, C., 1987, “Degradation of MCrAlY Coatings by Interdiffusion,” ASME Paper 87-GT-58.
Itoh,  Y., 1999, “Reaction Diffusion Behaviors for Interface Between Ni-Based Super Alloys and Vacuum Plasma Sprayed MCrAlY Coatings,” ASME J. Eng. Gas Turbines Power, 121, pp. 476–483.
Heumann,  T., 1952, “Zur Berechnung von Diffusions Koeffizienten bei Ein- und Mehrphasiger Diffusion in Festen Legierungen,” Zeit. Physik. Chem., 201, pp. 168–189.
Wagner,  C., 1956, “Reaktionstypen bei der Oxydation von Legierungen,” Z. Elektrochem., 63, No. 7, pp. 772–782.
Kidson,  G. V., 1961, “Some Aspects of the Growth of Diffusion Layers in Binary Systems,” J. Nucl. Mater., 3, No. 1, pp. 21–29.


Grahic Jump Location
SEM observation of vacuum-plasma sprayed MCrAlY coatings before aluminizing; (a) CoCrAlY coating, (b) NiCoCrAlY coating
Grahic Jump Location
SEM observation and EPMA analysis of aluminide coatings at 1223 K for 10 h; (a) aluminized layer of IN738LC, (b) over-aluminized layer of as-sprayed CoCrAlY coating, (c) over-aluminized layer of heat-treated CoCrAlY coating
Grahic Jump Location
Aluminizing behavior for IN738LC
Grahic Jump Location
Over-aluminizing behaviors for various kinds of vacuum-plasma sprayed MCrAlY coatings; (a) as-sprayed MCrAlY coatings (b) heat-treated MCrAlY coatings
Grahic Jump Location
Temperature dependency of diffusion rate constant on a parabolic time law; (a) as-sprayed MCrAlY coatings (b) heat-treated MCrAlY coatings
Grahic Jump Location
Effect of nickel content in as-sprayed MCrAlY coating on aluminizing behaviors in comparison with heat-treated MCrAlY coatings; (a) material constant, k0 (mm/s1/2), (b) material constant, c (/K)
Grahic Jump Location
Relative density of MCrAlY coatings measured by Archimedes method




Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In