Comparative analysis of tribological behavior of plasma- and high-velocity oxygen fuel-sprayed WC-10Co-4Cr coatings

Cui, Shiyu; Miao, Qiang; Liang, Wenping; Xu, Yang; Li, Baiqiang

doi:10.1108/ilt-09-2015-0129

Cited by 12 publications

(5 citation statements)

References 18 publications

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“…Thermally sprayed tungsten carbide/cobalt (WC-Co) coatings have many practical applications in the field of aviation, automobile, mechanical power, energy, papermaking and so on (Mohanty and Roy, 2012; Cui et al , 2017). WC-Co coatings can be prepared by various thermal spraying techniques.…”

Section: Introductionmentioning

confidence: 99%

Tribological behaviour of low-pressure plasma sprayed WC-Co coatings at elevated temperatures

Geng

Huang

et al. 2019

ILT

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Purpose This paper aims to investigate the effect of coating microstructure, mechanical and oxidation property on the tribological behaviour of low-pressure plasma spraying (LPPS) tungsten carbide/cobalt (WC-Co) coatings. Design/methodology/approach WC-12Co and WC-17Co coatings were deposited via the LPPS spraying method. Tribological tests on the coatings were performed using a high-temperature ball-on-disc tribometer at temperatures from room temperature (RT, approximately 25 °C) up to 800 °C in ambient air. Findings WC-12Co coating contained brittle phases, pores and microcracks, which led to the low hardness, and finally promoted the splat delamination and the carbide debonding during wear. WC-17Co coating had higher cobalt content which benefited the coating to contain more WC particles, less brittle phases, pores and nearly no microcracks, and resulted in the high hardness and better wear resistance. Higher cobalt content also decelerated the oxidation rate of the coating and promoted the formation of cobalt oxides and CoWO4, which were able to maintain the load-bearing capacity and improve the tribological behaviour of the coating below 650°C. Above 650°C, the increase of oxidation degree and the decrease of mechanical property deteriorated the wear resistance of coatings. Originality/value The LPPS WC-Co coating with higher cobalt content had better tribological properties at different temperatures. The LPPS WC-Co coatings should not be used as wear-resistant coatings above 650 °C.

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Section: Introductionmentioning

confidence: 99%

Tribological behaviour of low-pressure plasma sprayed WC-Co coatings at elevated temperatures

Geng

Huang

et al. 2019

ILT

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“…The reason for the low content of N and C atoms in the wear area is that EDS analysis of N and C elements with lighter atomic mass is only qualitative analysis (Xue et al , 2021). In the comprehensive results, it was found that the wear mechanism of carbide coating on TA15 substrates is abrasive wear and oxidation wear (Cui et al , 2017). S1 and S3 samples have clearly been worn through at 300°C [Figure 5(d)–(f)].…”

Section: Resultsmentioning

confidence: 99%

Microstructure, mechanical and tribological properties of Ta(C, N) coatings deposited on TA15 substrates with different nitrogen partial pressure

Miao

Liang

et al. 2022

ILT

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Purpose The purpose of this paper is to obtain the optimal N2/Ar ratio parameters for preparing Ta (C, N) coating. Three coatings with different N2/Ar ratios were prepared on the TA15 substrate, and their effects on the wear properties of the coatings were discussed. Design/methodology/approach Ta(C, N) coatings with three different N2/Ar ratios were prepared on TA15 substrates using the double cathode glow metallurgical plasma alloying technique (DGMPA) using a step-by-step diffusion method. Findings With the increase of N2/Ar flow ratio, the hardness and elastic modulus of the coating first increase and then decrease. Compared with the S1 sample (N2/Ar gas ratio 25: 75) and the S3 sample (N2/Ar gas ratio 75: 25), the S2 sample (N2/Ar gas ratio 50: 50) has better mechanical properties, with hardness increased by 48.45% and 6.8%, respectively, and elastic strain ratio increased by 22.8% and 28.5%, respectively. Moreover, the wear degree of the S2 sample is less than other samples. The wear rate of the S2 sample was 32.4% lower than the S3 sample at 300°C and 14.3% lower than the S3 sample at 500°C. Therefore, the S2 sample has the best mechanical properties and the best high temperature wear resistance. Originality/value Ta(C, N) coatings were prepared by DGMPA technology, and the wear mechanism of Ta(C, N) coatings with different N2/Ar ratios was investigated to reduce the wear rate.

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“…From the above discussion, it can be noticed that the use of Nickel is suggested by several researchers for erosion and corrosion slurry environment. Researchers (Berger, 2015; Cui et al , 2017; Vencl, Mrdak and Hvizdos, 2017; Kumar et al , 2018b; Singh et al , 2019) reported that the Ni, WC, Co and Ti elements are the popular choice as coating materials which can be deposited by varying the blending with other powders to obtain the alloy or composite coatings.…”

Section: Introductionmentioning

confidence: 99%

Tribo-performance analysis of HVOF sprayed 86WC-10Co4Cr & Ni-Cr₂O₃ on AISI 316L steel using DOE-ANN methodology

Singh

2021

ILT

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Purpose The purpose of this paper is to carry out erosion wear investigation on high-velocity oxy-fuel (HVOF)-deposited 86WC-10Co4Cr and synergistic Ni/Chromia powder (i.e. 80Ni-20Cr2O3) on AISI 316L. Design/methodology/approach Design of experiments-artificial neural network (DOE-ANN) methodology was adopted to calculate the erosion wear. Taguchi’s orthogonal array L16 (42) was used to perform set-of-erosion experiments followed by lower-the-better rule. The artificial neural network (ANN) model is used on erosion wear data obtained from the experiments. Findings Experimental results indicate that 86WC-10Co4Cr provided better erosion wear resistance as compared to Ni/Chromia. The erosion wear of 86WC-10Co4Cr and synergistic Ni/Chromia coatings increases with an increase in time duration, solid concentration and time. The magnitude of erosion generated by ashes was comparatively lower than sand. The arithmetic mean roughness (Ra) of finished AISI 316L, 86WC-10Co4Cr and Ni/Chromia coating was found as 0.46 ± 0.13, 6.50 ± 0.16 and 7.04 ± 0.23 µm, respectively. Surface microhardness of AISI 316L, 86WC-10Co4Cr and Ni/Chromia coating was found as 197 ± 18, 1,156 ± 18 and 1,021± 21 HV, respectively. Practical implications The present results can be useful for estimation of erosion wear in slurry pumps used in mining industry for the conveying of sand and in thermal power plants for the conveying of ashes to the dyke area. Originality/value The erosion wear of HVOF-sprayed 86WC-10Co4Cr and Synergistic Ni/Chromia powders was studied experimentally as well as predicted by the ANN model, and wear mechanisms are well discussed by scanning electron micrographs.

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Comparative analysis of tribological behavior of plasma- and high-velocity oxygen fuel-sprayed WC-10Co-4Cr coatings

Cited by 12 publications

References 18 publications

Tribological behaviour of low-pressure plasma sprayed WC-Co coatings at elevated temperatures

Tribological behaviour of low-pressure plasma sprayed WC-Co coatings at elevated temperatures

Microstructure, mechanical and tribological properties of Ta(C, N) coatings deposited on TA15 substrates with different nitrogen partial pressure

Tribo-performance analysis of HVOF sprayed 86WC-10Co4Cr & Ni-Cr₂O₃ on AISI 316L steel using DOE-ANN methodology

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Comparative analysis of tribological behavior of plasma- and high-velocity oxygen fuel-sprayed WC-10Co-4Cr coatings

Cited by 12 publications

References 18 publications

Tribological behaviour of low-pressure plasma sprayed WC-Co coatings at elevated temperatures

Tribological behaviour of low-pressure plasma sprayed WC-Co coatings at elevated temperatures

Microstructure, mechanical and tribological properties of Ta(C, N) coatings deposited on TA15 substrates with different nitrogen partial pressure

Tribo-performance analysis of HVOF sprayed 86WC-10Co4Cr & Ni-Cr2O3 on AISI 316L steel using DOE-ANN methodology

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Tribo-performance analysis of HVOF sprayed 86WC-10Co4Cr & Ni-Cr₂O₃ on AISI 316L steel using DOE-ANN methodology