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Thermal Barrier Stability and Wear Behavior of CVD Deposited Aluminide Coatings for MAR 247 Nickel Superalloy

In this paper, aluminide coatings of various thicknesses and microstructural uniformity obtained using chemical vapor deposition (CVD) were studied in detail. The optimized CVD process parameters of 1040 °C for 12 h in a protective hydrogen atmosphere enabled the production of high density and poros...

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Autores principales: Kukla, Dominik, Kopec, Mateusz, Kowalewski, Zbigniew L., Politis, Denis J., Jóźwiak, Stanisław, Senderowski, Cezary
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7503252/
https://www.ncbi.nlm.nih.gov/pubmed/32883042
http://dx.doi.org/10.3390/ma13173863
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author Kukla, Dominik
Kopec, Mateusz
Kowalewski, Zbigniew L.
Politis, Denis J.
Jóźwiak, Stanisław
Senderowski, Cezary
author_facet Kukla, Dominik
Kopec, Mateusz
Kowalewski, Zbigniew L.
Politis, Denis J.
Jóźwiak, Stanisław
Senderowski, Cezary
author_sort Kukla, Dominik
collection PubMed
description In this paper, aluminide coatings of various thicknesses and microstructural uniformity obtained using chemical vapor deposition (CVD) were studied in detail. The optimized CVD process parameters of 1040 °C for 12 h in a protective hydrogen atmosphere enabled the production of high density and porosity-free aluminide coatings. These coatings were characterized by beneficial mechanical features including thermal stability, wear resistance and good adhesion strength to MAR 247 nickel superalloy substrate. The microstructure of the coating was characterized through scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) analysis. Mechanical properties and wear resistance of aluminide coatings were examined using microhardness, scratch test and standardized wear tests, respectively. Intermetallic phases from the Ni-Al system at specific thicknesses (20–30 µm), and the chemical and phase composition were successfully evaluated at optimized CVD process parameters. The optimization of the CVD process was verified to offer high performance coating properties including improved heat, adhesion and abrasion resistance.
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spelling pubmed-75032522020-09-23 Thermal Barrier Stability and Wear Behavior of CVD Deposited Aluminide Coatings for MAR 247 Nickel Superalloy Kukla, Dominik Kopec, Mateusz Kowalewski, Zbigniew L. Politis, Denis J. Jóźwiak, Stanisław Senderowski, Cezary Materials (Basel) Article In this paper, aluminide coatings of various thicknesses and microstructural uniformity obtained using chemical vapor deposition (CVD) were studied in detail. The optimized CVD process parameters of 1040 °C for 12 h in a protective hydrogen atmosphere enabled the production of high density and porosity-free aluminide coatings. These coatings were characterized by beneficial mechanical features including thermal stability, wear resistance and good adhesion strength to MAR 247 nickel superalloy substrate. The microstructure of the coating was characterized through scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) analysis. Mechanical properties and wear resistance of aluminide coatings were examined using microhardness, scratch test and standardized wear tests, respectively. Intermetallic phases from the Ni-Al system at specific thicknesses (20–30 µm), and the chemical and phase composition were successfully evaluated at optimized CVD process parameters. The optimization of the CVD process was verified to offer high performance coating properties including improved heat, adhesion and abrasion resistance. MDPI 2020-09-01 /pmc/articles/PMC7503252/ /pubmed/32883042 http://dx.doi.org/10.3390/ma13173863 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kukla, Dominik
Kopec, Mateusz
Kowalewski, Zbigniew L.
Politis, Denis J.
Jóźwiak, Stanisław
Senderowski, Cezary
Thermal Barrier Stability and Wear Behavior of CVD Deposited Aluminide Coatings for MAR 247 Nickel Superalloy
title Thermal Barrier Stability and Wear Behavior of CVD Deposited Aluminide Coatings for MAR 247 Nickel Superalloy
title_full Thermal Barrier Stability and Wear Behavior of CVD Deposited Aluminide Coatings for MAR 247 Nickel Superalloy
title_fullStr Thermal Barrier Stability and Wear Behavior of CVD Deposited Aluminide Coatings for MAR 247 Nickel Superalloy
title_full_unstemmed Thermal Barrier Stability and Wear Behavior of CVD Deposited Aluminide Coatings for MAR 247 Nickel Superalloy
title_short Thermal Barrier Stability and Wear Behavior of CVD Deposited Aluminide Coatings for MAR 247 Nickel Superalloy
title_sort thermal barrier stability and wear behavior of cvd deposited aluminide coatings for mar 247 nickel superalloy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7503252/
https://www.ncbi.nlm.nih.gov/pubmed/32883042
http://dx.doi.org/10.3390/ma13173863
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