Modern Problems of Materials Science

Influence of Yttrium Concentration on the Crystal Lattice Parameters of Sealing Coatings Applied by Flame Spraying Method

Yelyzaveta Fasol, Vadim Kubich

National University «Zaporizhzhia Polytechnic», Ukraine

https://doi.org/10.15407/msse2025.01.074

PDF DocumentPDF

Keywords

sealing coating, yttrium alloying, crystal lattice, flame spraying, heat resistance

Abstract

This study examines the influence of different yttrium concentrations (0.1%, 0.3%, and 0.5%) on the crystal lattice parameters of KNA-82 sealing coatings for gas turbine engines. It was established that coatings with 0.3% yttrium content demonstrate optimal lattice parameters, providing increased erosion resistance during high-temperature operation.

References

  1. Wu Y., Li Y., Xu Y., Kang M., Wang J., Sun. B. Unveiling the precipitation-induced high-temperature oxidation behavior in a Ni-Al-Y alloy // Lett. – 2021. – 297. – № 129977. 10.1016/j.matlet.2021.129977
  2. Boguslaiev V.O., Greshta V.L., Kubich V.I., Fasol Ye.O. Effect of alloying heat-resistant packing coatings on their tribotechnical, physical and mechanical properties // Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetuthis. – 2020. – 6. – P. 41–47. 33271/nvngu/2020-6/041
  3. Ullah A., Khan A., Bao Z.B., Yang Y.F., Xu M.M., Zhu S.L., Wang F.H. Temperature effect on early oxidation behavior of NiCoCrAlY coatings: Microstructure and phase transformation. Acta Metall. Sin. (Engl. Lett.). – 2022. – 35. – P. 975–984. 1007/s40195-021-01310-5