Influence of deposition parameters on Tribological Performance of HVOF Coating: A review

Vats, Alok; Kumar, Arun; Patnaik, Amar; Meena, M.L.

doi:10.1088/1757-899x/1017/1/012015

Cited by 10 publications

(3 citation statements)

References 31 publications

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“…One of these processes is high velocity oxy-fuel (HVOF), a common combustion-spraying method, using oxygen as oxidant, and widely employed in different industries [2,4], where process parameters play an essential role on the coating properties and performance (porosity, microhardness, tribological behavior, etc. ), as has recently been documented [5].…”

Section: Introductionmentioning

confidence: 59%

Tribocorrosion Performance of WC-12Co HVOF-Sprayed Coatings Reinforced with Carbon Nanotubes

et al. 2023

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WC-12Co HVOF-sprayed coatings (~400 µm in thickness) reinforced with multiwalled carbon nanotubes (MWCNTs), were deposited on a steel substrate. The aim of this work is to provide and analyze data from HVOF WC-12Co sprayed coatings, concerning the influence of the addition of MWCNTs on their tribocorrosion performance, in a 3.5% NaCl electrolyte. Electrochemical data (current density and corrosion potential from potentiodynamic polarization curves) and wear data (coefficients of friction, coating volume losses and wear constants) are reported for the coatings, with and without the addition of MWCNTs (labeled WCCNT and WCAS-RECEIVED, respectively), considering the synergistic effects of wear and corrosion coupling. Scanning electron microscopy (SEM) and profilometry are used to explain both the wear and corrosion mechanisms that account for each coating’s performance in this environment. During the tribocorrosion tests, similar wear constants, of the order of approximately 10−12 m3/Nm, were found for all samples, with an increase of ~20% due to the MWCNTs presence. However, for the coatings reinforced with MWCNTs, a remarkable increase in icorr, representing almost 3 times the icorr of the WCAS-RECEIVED coating, was determined. The above results illustrate the complex mechanisms that occur when these coatings are tested under tribocorrosion conditions, which give rise to concurrent interacting phenomena, involving both electrochemical and mechanical responses.

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Section: Introductionmentioning

confidence: 59%

Tribocorrosion Performance of WC-12Co HVOF-Sprayed Coatings Reinforced with Carbon Nanotubes

et al. 2023

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“…The HVOF technique, renowned for providing wear-and corrosion-resistant coatings with high hardness, low porosity, and enhanced density, has gained widespread acceptance across various industries [18]. Hong et al [19] conducted an examination of the microstructure and morphological characteristics of two categories of HVOF-sprayed nanostructured WC-10Co-4Cr coatings.…”

Section: Introductionmentioning

confidence: 99%

Improvement in Corrosion Performance of ECAPed AZ80/91 Mg Alloys Using SS316 HVOF Coating

Naik,

Sharma,

Anne

et al. 2023

Materials

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Mg AZ80/91 alloys are highly popular due to their lightweight, high strength-to-weight ratio, and good machinability. However, their moderate mechanical properties and corrosion resistance have limited their use in the automotive, aerospace, and defense sectors. This study primarily aims to enhance the mechanical performance and corrosion resistance of Mg AZ80/91 alloys, making them more suitable for applications in the aerospace and automotive industries. Firstly, equal-channel angular pressing (ECAP) of Mg AZ80/91 alloys has been attempted to improve their mechanical properties. Secondly, a high-velocity oxy-fuel (HVOF) coating of SS316 was applied over the Mg AZ80/91 substrate to enhance its corrosion resistance. In the second step, an HVOF coating of SS316 is applied over the Mg AZ80/91 substrate for better corrosion resistance. The experimental findings demonstrate that the application of an SS316 coating on the ECAP-4P AZ80/91 Mg alloy substrate results in a uniform and dense layer with an average thickness of approximately 80 ± 5 µm. The HVOF-based SS316 coating on 4P-ECAP leads to a noteworthy enhancement in microhardness and a reduction in the corrosion rate, especially in a NaCl solution (3.5 wt.%). This improvement holds great promise for producing reliable, long-lasting, and resilient automotive, aerospace, and defense components. The application of an HVOF-based SS316 coating onto the AZ80 Mg alloy, which had not undergone ECAP treatment, led to a substantial enhancement in corrosion resistance. This resulted in a notable decrease in the corrosion current density, reducing it from 0.297 mA/cm2 to 0.10 µA/cm2.

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“…A minor drawback of AISI 1045 is that, unlike other medium carbon steels, it does not sustain complete hardening except for short parts of up to 60 mm. Surface treatment technologies have been the subject of extensive investigation for decades for AISI 1045 to enhance mechanical properties by thermal spray coating [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16],plasma arc cladding [17],electron beam cladding [18],tungsten inert gas arc cladding [19 22], laser beam cladding [23][24][25][26][27] and other surface modification methods.In order to apply the required coating, the HVOF process employs a mix of heat and kinetic energy to melt and accelerate powder particles. In the production of coatings, combustion and gas dynamics are crucial.…”

Section: Introductionmentioning

confidence: 99%

A Critical Review of Coating on AISI 1045 Steel Substrate by High Velocity Oxygen Fuel (HVOF)

Alam

Das

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Coating of surface is a cost-effective way to make materials, equipment, and machine components with desired surface characteristics including high hardness, resistance against erosion, wear and corrosion. To obtain the necessary characteristics, several coatings are employed. The surface characteristic of the AISI1045 steel is not optimum, despite its desired strength, resistance against wear, hardness or corrosion. Thermal spraying is currently a leading way in which materials are avoided for days to wear abrasively, corrosion at high temperatures, erosive wear and stress because of increased material life in use. Spraying using high-velocity oxygen fuel (HVOF) is a kind of thermal spraying noted for its resistance against wear, micro-hardness and thick micro structured coatings. The aim of this review paper is to provide a state-of-the-art about the research done by various scholars to improve physical, mechanical, wear, erosion and corrosion characteristics of AISI 1045 by the application of different or combination of coating powders utilising the HVOF Spray method.

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Influence of deposition parameters on Tribological Performance of HVOF Coating: A review

Cited by 10 publications

References 31 publications

Tribocorrosion Performance of WC-12Co HVOF-Sprayed Coatings Reinforced with Carbon Nanotubes

Tribocorrosion Performance of WC-12Co HVOF-Sprayed Coatings Reinforced with Carbon Nanotubes

Improvement in Corrosion Performance of ECAPed AZ80/91 Mg Alloys Using SS316 HVOF Coating

A Critical Review of Coating on AISI 1045 Steel Substrate by High Velocity Oxygen Fuel (HVOF)

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