Effect of reinforcing particles on the wear rate of low-pressure cold-sprayed WC-based MMC coatings

Melendez, N.M.; Narulkar, V. V.; Fisher, G.; McDonald, André

doi:10.1016/j.wear.2013.08.006

Cited by 83 publications

(29 citation statements)

References 57 publications

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“…It has been observed the distribution of tungsten carbide (WC) consists of angular shape, which is in light contrast dissolve into metallic binder of Co and Ni, which is in dark contrast. WC is preferentially melted into the both binder phases in high temperature during thermal spray process [13]. Pores which have been formed during deposition process within the coatings have an effect on some of mechanical properties such as elastic modulus, shear modulus and hardness that may affect the wear performance [14].…”

Section: Results and Discussion 31 Microstructure Analysismentioning

confidence: 99%

Wear and Corrosion Behavior of Tungsten Carbide Based Coating on Carbon Steel

Ahmad

Kamdi

Tobi

2018

IJIE

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Section: Results and Discussion 31 Microstructure Analysismentioning

confidence: 99%

Wear and Corrosion Behavior of Tungsten Carbide Based Coating on Carbon Steel

Ahmad

Kamdi

Tobi

2018

IJIE

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“…The particle reinforcements are limited by the initial particle size in ex-situ particle reinforced composite coatings [12]. Besides, the properties of composite coatings are decreased on account of the poor wettability and the interfacial reactions between the reinforcements and the metal matrix [13].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Wear Behavior of In-Situ NbC Reinforced Composite Coatings

et al. 2020

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In the present study, plasma spray welding was used to prepare an in-situ niobium carbide (NbC) reinforced Ni-based composite coating on the low carbon steel, and the phase composition and the microstructure of the composite coatings were studied. The wear resistance and the wear mechanism of the composite coatings were also researched by the wear tests. The results showed that the main phases of the composite coating were NbC, γ-Ni, Cr23C6, Ni3Si, CrB, Cr5B3, Cr7C3 and FeNi3. A number of fine in-situ NbC particles and numerous chromium carbide particles were distributed in the γ-Ni matrix. The increase in the mass fraction of Nb and NiCr-Cr3C2 could lead to the increase in NbC particles in the composite coatings. Due to the high hardness of NbC and chromium carbides, the micro-hardness and the wear resistance of the composite coatings were advanced. The composite coating with the powder mixtures of 20% (Nb + NiCr-Cr3C2) and 80% NiCrBSi had the highest micro-hardness and the best wear resistance in this study. The average micro-hardness reached the maximum value 1025HV0.5. The volume loss was 39.2 mm3, which was merely 37% of that of the NiCrBSi coating and 6% of that of the substrate under the identical conditions.

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“…Even then, the studies employing such concept are limited in the literature and involve successful depositions of W-Cu by Kang and Kang [10] and Deng et al [11], W-Ni-Fe by Xia et al [12], and low tungsten content in W-90Ta coatings by Barnett et al [13] only. Considering their excellent wear properties, a significantly broader series of studies involved the research of cemented carbides in a form of WC-Co [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31], WC-Ni [32][33][34][35][36][37][38][39][40][41], WC-Co-Ni [42], WC-Co-Cr [31,[43][44][45], or WC-Cu-MoS 2 [46,47]. Unfortunately, the carbides could not be used for PFCs and so we could not built on these results.…”

Section: Introductionmentioning

confidence: 99%

Cold Sprayed Tungsten Armor for Tokamak First Wall

et al. 2019

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Harnessing nuclear fusion is a challenging task, in particular because of the demands put on the used materials. In tokamaks, future energy sources, the inner-most chambers are to be coated with dense coatings of W, or W-Cr-based alloys. So far, the attempts for such coatings formation by other methods failed due to oxidation, high porosity, insufficient adhesion, high specific surface, or even insufficient thickness below 10 μ m. Cold spraying seems a promising technology for the task. In our study, we demonstrate the first successful fabrication of thick pure W coatings. W-Cr and W-Cr-Ti coatings were further prepared without oxidation of the metals. All coatings exhibited high hardness levels, good interface quality with three tested substrates and, importantly, a promising potential for formation of stable Cr 2 WO x phases.

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Effect of reinforcing particles on the wear rate of low-pressure cold-sprayed WC-based MMC coatings

Cited by 83 publications

References 57 publications

Wear and Corrosion Behavior of Tungsten Carbide Based Coating on Carbon Steel

Wear and Corrosion Behavior of Tungsten Carbide Based Coating on Carbon Steel

Microstructure and Wear Behavior of In-Situ NbC Reinforced Composite Coatings

Cold Sprayed Tungsten Armor for Tokamak First Wall

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