Chemical and mechanical stability of air annealed cathodic arc evaporated CrAlON coatings

Eluxka Almandoz, Gonzalo G. Fuentes, José Fernández, Javier Martinez de Bujanda, Rafael J. Rodríguez, Fco. Javier Pérez-Trujillo, Germán Alcalá, Arturo Lousa, Yi Qin

Research output: Contribution to journalArticle

Abstract

This study reports the synthesis and characterization of ternary Cr-Al-O and quaternary Cr-Al-O-N coatings deposited by cathodic arc physical vapour deposition, for various nitrogen and oxygen mass flow ratios during the growth process. The composition, microstructure, indentation hardness and modulus of the films have been characterized by scanning electron microscopy, electron probe micro-analysis, X-ray diffraction, and nanoindentation techniques. The evolution of the microstructure and mechanical properties of the coatings after ambient air annealing from 800 °C up to 1100 °C have been investigated. As the oxygen to nitrogen mass flow increases, the as-deposited coatings exhibit lower hardness, higher roughness, lower crystallinity and a more marked columnar structure. At oxygen to nitrogen mass flow ratios bigger than 10/90, the coatings exhibit a stoichiometry of the type (CrAl)2+εO3−ε. Only the coatings with an oxygen to nitrogen mass flow ratio smaller than 10/90 retained nitrogen in their compositions. In all cases, the coatings developed a cubic fcc lattice structure.
After annealing at 1100 °C the resulting microstructure showed a clear dependency upon the initial composition of the films. The evolution of the microstructure during the high temperature tests, as well as the analysis of the nanoindentation hardness, composition and thickness also provided valuable information about the combined effects of the thermal stability and the oxidation of the deposited coatings.
LanguageEnglish
Pages153-161
Number of pages9
JournalSurface and Coatings Technology
Volume351
Early online date29 Jul 2018
DOIs
Publication statusPublished - 15 Oct 2018

Fingerprint

Mechanical stability
Chemical stability
arcs
coatings
mass flow
Coatings
Nitrogen
air
Air
nitrogen
Oxygen
microstructure
Microstructure
hardness
Hardness
oxygen
Nanoindentation
nanoindentation
Chemical analysis
high temperature tests

Keywords

  • CrAION coatings
  • wear
  • cathodic arc evaporation
  • thermal stability

Cite this

Almandoz, E., Fuentes, G. G., Fernández, J., Martinez de Bujanda, J., Rodríguez, R. J., Pérez-Trujillo, F. J., ... Qin, Y. (2018). Chemical and mechanical stability of air annealed cathodic arc evaporated CrAlON coatings. Surface and Coatings Technology, 351, 153-161. https://doi.org/10.1016/j.surfcoat.2018.07.081
Almandoz, Eluxka ; Fuentes, Gonzalo G. ; Fernández, José ; Martinez de Bujanda, Javier ; Rodríguez, Rafael J. ; Pérez-Trujillo, Fco. Javier ; Alcalá, Germán ; Lousa, Arturo ; Qin, Yi. / Chemical and mechanical stability of air annealed cathodic arc evaporated CrAlON coatings. In: Surface and Coatings Technology. 2018 ; Vol. 351. pp. 153-161.
@article{05450cbfa528483bbcd678a7cc31c94d,
title = "Chemical and mechanical stability of air annealed cathodic arc evaporated CrAlON coatings",
abstract = "This study reports the synthesis and characterization of ternary Cr-Al-O and quaternary Cr-Al-O-N coatings deposited by cathodic arc physical vapour deposition, for various nitrogen and oxygen mass flow ratios during the growth process. The composition, microstructure, indentation hardness and modulus of the films have been characterized by scanning electron microscopy, electron probe micro-analysis, X-ray diffraction, and nanoindentation techniques. The evolution of the microstructure and mechanical properties of the coatings after ambient air annealing from 800 °C up to 1100 °C have been investigated. As the oxygen to nitrogen mass flow increases, the as-deposited coatings exhibit lower hardness, higher roughness, lower crystallinity and a more marked columnar structure. At oxygen to nitrogen mass flow ratios bigger than 10/90, the coatings exhibit a stoichiometry of the type (CrAl)2+εO3−ε. Only the coatings with an oxygen to nitrogen mass flow ratio smaller than 10/90 retained nitrogen in their compositions. In all cases, the coatings developed a cubic fcc lattice structure.After annealing at 1100 °C the resulting microstructure showed a clear dependency upon the initial composition of the films. The evolution of the microstructure during the high temperature tests, as well as the analysis of the nanoindentation hardness, composition and thickness also provided valuable information about the combined effects of the thermal stability and the oxidation of the deposited coatings.",
keywords = "CrAION coatings, wear, cathodic arc evaporation, thermal stability",
author = "Eluxka Almandoz and Fuentes, {Gonzalo G.} and Jos{\'e} Fern{\'a}ndez and {Martinez de Bujanda}, Javier and Rodr{\'i}guez, {Rafael J.} and P{\'e}rez-Trujillo, {Fco. Javier} and Germ{\'a}n Alcal{\'a} and Arturo Lousa and Yi Qin",
year = "2018",
month = "10",
day = "15",
doi = "10.1016/j.surfcoat.2018.07.081",
language = "English",
volume = "351",
pages = "153--161",
journal = "Surface and Coatings Technology",
issn = "0257-8972",

}

Almandoz, E, Fuentes, GG, Fernández, J, Martinez de Bujanda, J, Rodríguez, RJ, Pérez-Trujillo, FJ, Alcalá, G, Lousa, A & Qin, Y 2018, 'Chemical and mechanical stability of air annealed cathodic arc evaporated CrAlON coatings' Surface and Coatings Technology, vol. 351, pp. 153-161. https://doi.org/10.1016/j.surfcoat.2018.07.081

Chemical and mechanical stability of air annealed cathodic arc evaporated CrAlON coatings. / Almandoz, Eluxka; Fuentes, Gonzalo G.; Fernández, José; Martinez de Bujanda, Javier ; Rodríguez, Rafael J. ; Pérez-Trujillo, Fco. Javier ; Alcalá, Germán; Lousa, Arturo; Qin, Yi.

In: Surface and Coatings Technology, Vol. 351, 15.10.2018, p. 153-161.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Chemical and mechanical stability of air annealed cathodic arc evaporated CrAlON coatings

AU - Almandoz, Eluxka

AU - Fuentes, Gonzalo G.

AU - Fernández, José

AU - Martinez de Bujanda, Javier

AU - Rodríguez, Rafael J.

AU - Pérez-Trujillo, Fco. Javier

AU - Alcalá, Germán

AU - Lousa, Arturo

AU - Qin, Yi

PY - 2018/10/15

Y1 - 2018/10/15

N2 - This study reports the synthesis and characterization of ternary Cr-Al-O and quaternary Cr-Al-O-N coatings deposited by cathodic arc physical vapour deposition, for various nitrogen and oxygen mass flow ratios during the growth process. The composition, microstructure, indentation hardness and modulus of the films have been characterized by scanning electron microscopy, electron probe micro-analysis, X-ray diffraction, and nanoindentation techniques. The evolution of the microstructure and mechanical properties of the coatings after ambient air annealing from 800 °C up to 1100 °C have been investigated. As the oxygen to nitrogen mass flow increases, the as-deposited coatings exhibit lower hardness, higher roughness, lower crystallinity and a more marked columnar structure. At oxygen to nitrogen mass flow ratios bigger than 10/90, the coatings exhibit a stoichiometry of the type (CrAl)2+εO3−ε. Only the coatings with an oxygen to nitrogen mass flow ratio smaller than 10/90 retained nitrogen in their compositions. In all cases, the coatings developed a cubic fcc lattice structure.After annealing at 1100 °C the resulting microstructure showed a clear dependency upon the initial composition of the films. The evolution of the microstructure during the high temperature tests, as well as the analysis of the nanoindentation hardness, composition and thickness also provided valuable information about the combined effects of the thermal stability and the oxidation of the deposited coatings.

AB - This study reports the synthesis and characterization of ternary Cr-Al-O and quaternary Cr-Al-O-N coatings deposited by cathodic arc physical vapour deposition, for various nitrogen and oxygen mass flow ratios during the growth process. The composition, microstructure, indentation hardness and modulus of the films have been characterized by scanning electron microscopy, electron probe micro-analysis, X-ray diffraction, and nanoindentation techniques. The evolution of the microstructure and mechanical properties of the coatings after ambient air annealing from 800 °C up to 1100 °C have been investigated. As the oxygen to nitrogen mass flow increases, the as-deposited coatings exhibit lower hardness, higher roughness, lower crystallinity and a more marked columnar structure. At oxygen to nitrogen mass flow ratios bigger than 10/90, the coatings exhibit a stoichiometry of the type (CrAl)2+εO3−ε. Only the coatings with an oxygen to nitrogen mass flow ratio smaller than 10/90 retained nitrogen in their compositions. In all cases, the coatings developed a cubic fcc lattice structure.After annealing at 1100 °C the resulting microstructure showed a clear dependency upon the initial composition of the films. The evolution of the microstructure during the high temperature tests, as well as the analysis of the nanoindentation hardness, composition and thickness also provided valuable information about the combined effects of the thermal stability and the oxidation of the deposited coatings.

KW - CrAION coatings

KW - wear

KW - cathodic arc evaporation

KW - thermal stability

UR - https://www.sciencedirect.com/journal/surface-and-coatings-technology

U2 - 10.1016/j.surfcoat.2018.07.081

DO - 10.1016/j.surfcoat.2018.07.081

M3 - Article

VL - 351

SP - 153

EP - 161

JO - Surface and Coatings Technology

T2 - Surface and Coatings Technology

JF - Surface and Coatings Technology

SN - 0257-8972

ER -

Almandoz E, Fuentes GG, Fernández J, Martinez de Bujanda J, Rodríguez RJ, Pérez-Trujillo FJ et al. Chemical and mechanical stability of air annealed cathodic arc evaporated CrAlON coatings. Surface and Coatings Technology. 2018 Oct 15;351:153-161. https://doi.org/10.1016/j.surfcoat.2018.07.081