Comparative Evaluation of Protective Coatings for High Temperature Alloys 640513
Recently there have been many new developments in aluminum-base diffusion coatings as well as with other coating materials for protection of metal parts in high temperature oxidizing environments. Evaluation is described of many of these coatings on three separate laboratory test devices, for determining (1) resistance to erosion in a high velocity high temperature oxidizing atmosphere, (2) resistance to cracking and oxidation in a thermal fatigue test, and (3) sensitivity to light impact damage at elevated temperatures. Experience with diffused aluminum base coatings on some turbine engine components is discussed, and limitations of the evaluated coatings are cited.
Citation: Nichols, E., Burger, J., and Hanink, D., "Comparative Evaluation of Protective Coatings for High Temperature Alloys," SAE Technical Paper 640513, 1964, https://doi.org/10.4271/640513. Download Citation
Author(s):
E. S. Nichols, J. A. Burger, D. K. Hanink
Affiliated:
Allison Div., General Motors Corp.
Pages: 14
Event:
SAE World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Engine components
Coatings, colorants, and finishes
Corrosion
Erosion
Metals
Drag
Aluminum
Alloys
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