Slurry Aluminizing of Turbine Blades
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Keywords

aluminide coatings
nickel superalloys
diffusion treatment
Ceral

How to Cite

Bujny, M., Cieśla, J., Góral, M., Wierzbinska, M., Ochał, K., & Kubaszek, T. (2025). Slurry Aluminizing of Turbine Blades. Advances in Mechanical and Materials Engineering, 42(1), 191-197. https://doi.org/10.7862/rm.2025.15

Abstract

This paper presents the results of a study on the application of a slurry method to produce aluminide coatings on aircraft engine turbine blades. The coating was produced on ZS6K alloy blades by 1, 2 and 3 times spray painting with intermediate drying followed by diffusion annealing in Ar atmosphere for 2, 4 and 6 hours at 900, 950 and 1000°C. The coatings were evaluated with consideration of thickness structure and aluminum content. The results indicated that the use of single-painting did not allow - regardless of temperature and annealing time - to obtain a uniform aluminide coating. The use of two-time painting and diffusion annealing at time 4 hours makes it possible to obtain coatings with a thickness of 60–80 μm containing 26–30 wt. % of aluminum. Three-coat painting makes it possible to obtain coatings close to 100 μm thick containing 28–32 wt. % of aluminum.

https://doi.org/10.7862/rm.2025.15
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References

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