Abrasive wear of high velocity oxygen fuel (HVOF) superalloy coatings under vibration load

Kandeva, M. K.; Ivanova, B.; Karastoyanov, Dimitar; Grozdanova, Tsvetinka; Assenova, Emilia

doi:10.1088/1757-899x/174/1/012010

“…[34][35][36] It is reported that the density, bond strength, and cohesion strength of HVOF-sprayed coatings are better than the coatings produced using other thermal spray techniques. 37,38 Ceramic and ceramic-based composite coatings can be used in various applications where protection against wear, oxidation, and corrosion at high temperatures and pressures 39 are desired. The literature suggests that ceramic-based coatings/films can be deposited using techniques like atomic layer deposition, micro-arc alloying, or the sol-gel method.…”

Section: Introductionmentioning

confidence: 99%

Development of Al₂O₃-based hybrid ceramic matrix composite coating to mitigate the erosive wear of advanced steel

Gupta

¹

,

Kumar

²

2020

Proceedings of the Institution of Mechanical Engineers, Part L:

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Steels are susceptible to surface- and subsurface-related degradations (e.g. corrosion and wear) depending upon the working environment; however, desired properties can resolve these issues. The authors have selected the high-velocity oxygen-fuel process to develop alumina-based composite coatings on ASME SA 387 GR22 CL2 steel. The coating material chosen comprises ceria and hexagonal boron nitride as the reinforcements. The metallurgical characteristics of coatings are recorded using X-ray diffraction and scanning electron microscopy. Mechanical properties are mapped using a nano-indenter; and an air jet erosion test rig is used to evaluate erosion wear response. Improvements in the mechanical properties and erosive wear resistance of the hybrid coating are attributed to microstructural changes and the generation of new phases. The values of [Formula: see text], [Formula: see text], and [Formula: see text] are used to develop the mechanistic understanding of coatings’ erosion behavior. Splat cracking and splat detachment are the observed erosion wear mechanisms.

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“…Due to the high velocity and low contact time of the particles with oxygen under definite conditions they do not form oxides, which, in fact, is a prerequisite for good tribological properties of the coatings [25,26]. HVOF-coatings are the object of intensive investigations and they are continuously being improved [27][28][29][30][31][32][33][34][35][36][37][38][39][40][41]. The results of studies of the authors and those of other researchers show that the mechanical and tribological characteristics of the HVOF-coatings, depend not only on the parameters of the technological regime of deposition, but also to a great extent they depend on the chemical composition and on the concentrations of the chemical elements in the powder composite material, the size of the particles, and on the temperature of the substrate.…”

Section: Introductionmentioning

confidence: 99%

“…The results of studies of the authors and those of other researchers show that the mechanical and tribological characteristics of the HVOF-coatings, depend not only on the parameters of the technological regime of deposition, but also to a great extent they depend on the chemical composition and on the concentrations of the chemical elements in the powder composite material, the size of the particles, and on the temperature of the substrate. The results also depend on the type and the dimensions of the contact (point type, linear type, planar type) [29,31,35]. The papers [35,36] present interesting results concerning the ceramic coatings with aluminum oxide matrix (Al 2 O 3 ) with matrix of 3% titanium oxide (TiO 2 ) and zirconium oxide (ZrO 2 ) matrix with 30% calcium oxide (CaO) on the basis of non-alloy structural steel of the S235JR class.…”

Section: Introductionmentioning

confidence: 99%

Influence of Chromium Concentration on the Abrasive Wear of Ni-Cr-B-Si Coatings Applied by Supersonic Flame Jet (HVOF)

Kandeva

¹

,

Kalitchin²,

Stoyanova

³

2021

Metals

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This research work studies the characteristics of wear and wear resistance of composite powder coatings, deposited by supersonic flame jet (HVOF), which contain composite mixtures Ni-Cr-B-Si having different chromium concentrations—9.9%, 13.2%, 14%, 16%, and 20%, at one and the same size of the particles and the same content of the remaining elements. The coating of 20% Cr does not contain B and Si. Out of each powder composite, coatings have been prepared without any preliminary thermal treatment of the substrate and with preliminary thermal treatment of the substrate up to 650 °C. The coatings have been tested under identical conditions of dry friction over a surface of solid, firmly-attached, abrasive particles using tribological testing device “Pin-on-disk”. Results have been obtained and the dependences of the hardness, mass wear, intensity of the wearing process, and absolute and relative wear resistance on the Cr concentration under identical conditions of friction. It has been found out that for all the coatings the preliminary thermal treatment of the substrate leads to a decrease in the wear intensity. Upon increasing Cr concentration the wear intensity diminishes and it reaches minimal values at 16% Cr. In the case of coatings having 20% Cr concentration, the wear intensity is increased, which is due to the absence of the components B and Si in the composite mixture, whereupon no inter-metallic structures are formed having high hardness and wear resistance. The obtained results have no analogues in the current literature and they have not been published by the authors.

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“…Due to the high velocity and low contact time of the particles with oxygen under definite conditions they do not form oxides, which, in fact, is a prerequisite for good tribological properties of the coatings [25,26]. HVOF-coatings are the object of intensive investigations and they are continuously being improved [27][28][29][30][31][32][33][34][35][36][37][38][39][40][41]. The results of studies of the authors and those of other researchers show that the mechanical and tribological characteristics of the HVOF-coatings, depend not only on the parameters of the technological regime of deposition, but also to a great extent they depend on the chemical composition and on the concentrations of the chemical elements in the powder composite material, the size of the particles, and on the temperature of the substrate.…”

Section: Introductionmentioning

confidence: 99%

Influence of Chromium Concentration on the Abrasive Wear of Ni-Cr-B-Si Coatings Applied by Supersonic Flame Jet (HVOF)

Kandeva¹,

Kalitchin²,

Stoyanova³

2021

Prime Archives in Material Science

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This research work studies the characteristics of wear and wear resistance of composite powder coatings, deposited by supersonic flame jet (HVOF), which contain composite mixtures Ni-Cr-B-Si having different chromium concentrations-9.9%, 13.2%, 14%, 16%, and 20%, at one and the same size of the particles and the same content of the remaining elements. The www.videleaf.com have no analogues in the current literature and they have not been published by the authors.

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Abrasive wear of high velocity oxygen fuel (HVOF) superalloy coatings under vibration load

Cited by 6 publications

References 8 publications

Development of Al₂O₃-based hybrid ceramic matrix composite coating to mitigate the erosive wear of advanced steel

Development of Al₂O₃-based hybrid ceramic matrix composite coating to mitigate the erosive wear of advanced steel

Influence of Chromium Concentration on the Abrasive Wear of Ni-Cr-B-Si Coatings Applied by Supersonic Flame Jet (HVOF)

Influence of Chromium Concentration on the Abrasive Wear of Ni-Cr-B-Si Coatings Applied by Supersonic Flame Jet (HVOF)

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Abrasive wear of high velocity oxygen fuel (HVOF) superalloy coatings under vibration load

Cited by 6 publications

References 8 publications

Development of Al2O3-based hybrid ceramic matrix composite coating to mitigate the erosive wear of advanced steel

Development of Al2O3-based hybrid ceramic matrix composite coating to mitigate the erosive wear of advanced steel

Influence of Chromium Concentration on the Abrasive Wear of Ni-Cr-B-Si Coatings Applied by Supersonic Flame Jet (HVOF)

Influence of Chromium Concentration on the Abrasive Wear of Ni-Cr-B-Si Coatings Applied by Supersonic Flame Jet (HVOF)

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Development of Al₂O₃-based hybrid ceramic matrix composite coating to mitigate the erosive wear of advanced steel

Development of Al₂O₃-based hybrid ceramic matrix composite coating to mitigate the erosive wear of advanced steel