Room temperature and 600 °C erosion behaviour of various chromium carbide composite coatings

Venkatesh, L.; Venkataraman, B.; Tak, Manish; Sivakumar, G.; Gundakaram, R.; Joshi, Shrikant V.; Samajdar, Indradev

doi:10.1016/j.wear.2019.01.025

Cited by 10 publications

(7 citation statements)

References 17 publications

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“…The spalling pits are most commonly found surrounding the pores. With the successive impact of erodent particles on the coated surface, the microcracks steadily extended till the first layer of a spalling pit is generated 26,28 …”

Section: Resultsmentioning

confidence: 99%

“…With the successive impact of erodent particles on the coated surface, the microcracks steadily extended till the first layer of a spalling pit is generated. 26,28 Figure 11D shows an eroded WC + Cr 3 C 2 composite coated surface with a homogenous distribution of the strong phases WC and Cr 3 C 2 in the bonding phase Co 3 W 3 C, where Cr is generally flat and dense. No evidence of severe erosion or damage signs were found.…”

Section: Analysis Of Eroded Worn Surfacesmentioning

confidence: 99%

“…The coated sample has a lower corrosion rate (CR) and greater corrosion resistance than bare metal. [22][23][24][25] Venkatesh et al 26,27 investigated the microstructure of the chromium carbide-NiCrMoNb composite coating on a low carbon steel substrate. Carburization and oxidation resulted in the formation of chromium carbides with lower carbon content and chromium oxides.…”

Section: Introductionmentioning

confidence: 99%

“…The coated sample has a lower corrosion rate (CR) and greater corrosion resistance than bare metal 22–25 . Venkatesh et al 26,27 . investigated the microstructure of the chromium carbide–NiCrMoNb composite coating on a low carbon steel substrate.…”

Section: Introductionmentioning

confidence: 99%

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Erosive and corrosive wear performance and characterization studies of plasma‐sprayed WC/Cr ₃ C ₂ coating on SS316

Maharajan¹,

Rex²,

Ravindran³

et al. 2022

Int J Applied Ceramic Tech

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Plasma spray coating with ceramic carbide is a promising approach for improving the surface quality of the materials. In this work, the effectiveness of tungsten carbide (WC), chromium carbide (Cr3C2), and the composite coating of the two powders in the weight ratio of 50:50 were investigated. In the erosion test, aluminum oxide (Al2O3) particles were combined with a high‐speed air‐jet and impinged at 90° on the top surface of the material. Electrochemical polarization and electrochemical impedance spectroscopy studies were conducted with a 3.5 wt.% of sodium chloride (NaCl) solution as the electrolyte. Using a scanning electron microscope, the surface morphology of powders and coatings, as well as the mechanisms of erosion and corrosion, were studied. Energy‐dispersive X‐ray analysis and X‐ray diffractometry were used to reveal the composition and elemental distribution of the feedstock powders and coatings. Because of the presence of hard phases, the composite coating shows the highest average microhardness of 1350.2 HV. The composite coating exhibits improved erosive wear resistance with an increase in erodent exposure time. The Cr3C2 coating has a reduced corrosion current density of 1.404 × 10−5 mA/cm2 and a higher charge transfer resistance of 2086.75 Ω cm2 due to passivation.

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Section: Resultsmentioning

confidence: 99%

Section: Analysis Of Eroded Worn Surfacesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Erosive and corrosive wear performance and characterization studies of plasma‐sprayed WC/Cr ₃ C ₂ coating on SS316

Maharajan¹,

Rex²,

Ravindran³

et al. 2022

Int J Applied Ceramic Tech

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“…The effect of erosion wear is significant when it comes to gas-turbine efficiency. The turbine blades of hot-gas-path components are subjected to efficiency loss because of the impact of solid-particle erosion on blade surfaces [71].…”

Section: Erosion-protection Coatingsmentioning

confidence: 99%

Wear Characteristics of Superalloy and Hardface Coatings in Gas Turbine Applications–A Review

Pauzi

Ghazali

Zamri

et al. 2020

Metals

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In the gas-turbine research field, superalloys are some of the most widely used materials as they offer excellent strength, particularly at extreme temperatures. Vital components such as combustion liners, transition pieces, blades, and vanes, which are often severely affected by wear, have been identified. These critical components are exposed to very high temperatures (ranging from 570 to 1300 °C) in hot-gas-path systems and are generally subjected to heavy repair processes for maintenance works. Major degradation such as abrasive wear and fretting fatigue wear are predominant mechanisms in combustion liners and transition pieces during start–stop or peaking operation, resulting in high cost if inadequately protected. Another type of wear-like erosion is also prominent in turbine blades and vanes. Nimonic 263, Hastelloy X, and GTD 111 are examples of superalloys used in the gas-turbine industry. This review covers the development of hardface coatings used to protect the surfaces of components from wear and erosion. The application of hardface coatings helps reduce friction and wear, which can increase the lifespan of materials. Moreover, chromium carbide and Stellite 6 hardface coatings are widely used for hot-section components in gas turbines because they offer excellent resistance against wear and erosion. The effectiveness of these coatings to mitigate wear and increase the performance is further investigated. We also discuss in detail the current developments in combining these coating with other hard particles to improve wear resistance. The principles of this coating development can be extended to other high-temperature applications in the power-generation industry.

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Wear Resistance under Different Temperatures of NiCr-Cr3C2 Coating Remelted by Tungsten Inert Gas Arc

Yuan

Dong

et al. 2020

J. of Materi Eng and Perform

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Room temperature and 600 °C erosion behaviour of various chromium carbide composite coatings

Cited by 10 publications

References 17 publications

Erosive and corrosive wear performance and characterization studies of plasma‐sprayed WC/Cr ₃ C ₂ coating on SS316

Erosive and corrosive wear performance and characterization studies of plasma‐sprayed WC/Cr ₃ C ₂ coating on SS316

Wear Characteristics of Superalloy and Hardface Coatings in Gas Turbine Applications–A Review

Wear Resistance under Different Temperatures of NiCr-Cr3C2 Coating Remelted by Tungsten Inert Gas Arc

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Room temperature and 600 °C erosion behaviour of various chromium carbide composite coatings

Cited by 10 publications

References 17 publications

Erosive and corrosive wear performance and characterization studies of plasma‐sprayed WC/Cr 3 C 2 coating on SS316

Erosive and corrosive wear performance and characterization studies of plasma‐sprayed WC/Cr 3 C 2 coating on SS316

Wear Characteristics of Superalloy and Hardface Coatings in Gas Turbine Applications–A Review

Wear Resistance under Different Temperatures of NiCr-Cr3C2 Coating Remelted by Tungsten Inert Gas Arc

Contact Info

Product

Resources

About

Room temperature and 600 °C erosion behaviour of various chromium carbide composite coatings

Erosive and corrosive wear performance and characterization studies of plasma‐sprayed WC/Cr ₃ C ₂ coating on SS316

Erosive and corrosive wear performance and characterization studies of plasma‐sprayed WC/Cr ₃ C ₂ coating on SS316