The Influence of Steel and Cast Iron as Substrate Materials on the Microstructure, Microhardness and Wear Resistance of Nickel-base Ti-Al Plasma Spray Coatings

Authors

  • Hristo Skulev Institute of Metal Science, Equipment and Technologies with Hydro- and Aerodynamics Centre “Acad. A. Balevski”, Bulgarian Academy of Sciences
  • Deyan Veselinov Institute of Metal Science, Equipment and Technologies with Hydro- and Aerodynamics Centre “Acad. A. Balevski”, Bulgarian Academy of Sciences

DOI:

https://doi.org/10.7546/CRABS.2022.11.13

Keywords:

plasma spray, nickel alloy, coatings, steel, cast iron

Abstract

This paper studies the influence of different substrate materials on the phase composition, microstructure, microhardness, and wear resistance of Ni-Cr-B-Si-C-Ti-Al plasma spray coatings. Two types of substrate metals were studied – AISI 1045 steel and Pig-P3 Si grey cast iron. It has been found that in the as-coated condition the surface layers have a phase composition of γ-Ni, Cr23C6, γ-TiAl, TiN, and α-Ti(N, O) on steel substrate, and γ-Ni, α-Ti, TiN, Ni3B, CrB, Cr23C6, α-Ti(N, O), Ni3Si on cast iron. The microhardness and wear resistance of the plasma sprayed Ni-Cr-B-Si-C-Ti-Al coatings is tested. The wear volume of the coatings has been tested for up to 60 min. The deposits on cast iron substrates demonstrate lower wear than those on the steel substrate.

Author Biographies

Hristo Skulev, Institute of Metal Science, Equipment and Technologies with Hydro- and Aerodynamics Centre “Acad. A. Balevski”, Bulgarian Academy of Sciences

Mailing Address:
Institute of Metal Science, Equipment and Technologies
with Hydro- and Aerodynamics Centre “Acad. A. Balevski”,
Bulgarian Academy of Sciences
67 Shipchenski prohod Blvd
1574 Sofia, Bulgaria

E-mail: skulev@ims.bas.bg

Deyan Veselinov, Institute of Metal Science, Equipment and Technologies with Hydro- and Aerodynamics Centre “Acad. A. Balevski”, Bulgarian Academy of Sciences

Mailing Address:
Institute of Metal Science, Equipment and Technologies
with Hydro- and Aerodynamics Centre “Acad. A. Balevski”,
Bulgarian Academy of Sciences
67 Shipchenski prohod Blvd
1574 Sofia, Bulgaria

E-mail: dveselinov@ims.bas.bg

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Published

30-11-2022

How to Cite

[1]
H. Skulev and D. Veselinov, “The Influence of Steel and Cast Iron as Substrate Materials on the Microstructure, Microhardness and Wear Resistance of Nickel-base Ti-Al Plasma Spray Coatings”, C. R. Acad. Bulg. Sci. , vol. 75, no. 11, pp. 1656–1662, Nov. 2022.

Issue

Section

Engineering Sciences