Effects of WC particles on microstructure and wear behavior of laser cladding Ni60 composite coatings

Chen, Chunlun; Feng, Aixin; Wei, Yacheng; Wang, Yu; Pan, Xiaoming; Song, Xiangyu

doi:10.1016/j.optlastec.2023.109425

Cited by 41 publications

(5 citation statements)

References 29 publications

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“…However, microcracks were observed in the WC composite coatings. Chen et al [7] also reported similar findings. The study compared the effects of incorporating micron-sized and nano-sized WC particles on the properties of nickel-based composite cladding coatings.…”

Section: Introductionsupporting

confidence: 54%

Effects of ZrW2O8 Content on the Microstructures and Properties of Composite Coatings Produced by Laser Cladding

Zhang,

Liu,

Pang

2024

Coatings

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Addressing the issue of cracking in laser-cladding Ni-based composite coatings with WC particles, this study explored an approach to fabricating a crack-free coating by incorporating ZrW2O8 powder. The influence of varying ZrW2O8 contents on the crack susceptibility, microstructure, microhardness, wear resistance, and corrosion resistance of Ni60/WC composite coatings was systematically examined. The findings indicate that the ZrW2O8 content significantly impacts the microstructure and functional properties of the coating. Furthermore, it is suggested that the main contributors to preventing crack formation and diffusion are believed to be the pressure interaction caused by the negative expansion effect of ZrW2O8, as well as the in situ phase transition and diffusion toughening of ZrO2 during its decomposition process. The feasibility of achieving crack selfhealing through the addition of specific amounts of ZrW2O8 powder has been conclusively demonstrated.

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Section: Introductionsupporting

confidence: 54%

Effects of ZrW2O8 Content on the Microstructures and Properties of Composite Coatings Produced by Laser Cladding

Zhang,

Liu,

Pang

2024

Coatings

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“…During the initial friction stage, the sample surface appears rough, and the friction coefficient undergoes significant fluctuations. In the stable friction stage, the friction coefficient of the coating exhibits fluctuations within a certain range, which are possibly attributed to the micro-cutting of hard-phase particles within the coating upon contact with the counter-abrasive ball [39]. Figure 13 depicts the histograms of wear weight loss of fused samples and substrate Ti6Al4V at various scanning speeds The wear weight first decreases and then increases.…”

Section: Friction and Wear Performancementioning

confidence: 99%

Microstructure and Wear Resistance of Ti6Al4V Titanium Alloy Laser-Clad Ni60/WC Composite Coating

Feng,

Ma,

Tian

et al. 2024

Materials

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In this paper, Ni60/WC wear-resistant coatings have been created on the Ti6Al4V substrate surface using a pre-layered powder laser cladding method by deploying various scanning speeds of 8, 10, 12, and 14 mm/s. The coatings are characterized through X-ray diffraction (XRD), scanning electron microscopy (SEM), and a high-speed reciprocating fatigue wear tester. It is found that the phase composition of the coating comprises the synthesized, hard phase TiC and TiB2, the silicides WSi2 and W5Si3, and NiTi and γ-Ni solid solutions. At different scanning speeds, there is a metallurgical fusion line in the bonding area of the fused cladding layer, indicating a good metallurgical bonding between the substrate and the powder. At a low scanning speed, the coating develops into coarse dendrites, which shows significant improvement with scanning speed. The microhardness first increases and then decreases with the scanning speed, and the coating’s average microhardness was 2.75–3.13 times higher than that of the substrate. The amount of mass wear has been reduced by 60.1–79.7% compared to the substrate. The wear behavior of the coatings was studied through detailed analysis of wear surfaces’ microstructures and the amount of wear to identify the optimum scanning speed.

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“…Although the size of WC particles decreases under 1,200 W conditions, the C and W formed by the decarburization reaction of WC promotes the formation of carbides and W-rich phases in the coating. It plays a role in solid solution strengthening (Chen et al, 2023). When the laser power is further increased, the WC particles on the substrate surface have been completely dissolved.…”

Section: Microhardness Analysismentioning

confidence: 99%

“…It is related to drilling speed, development efficiency, and national energy security issues. Laser cladding technology uses a high-energy laser beam to rapidly heat and cool a material surface for the preparation of protective coatings with properties such as high hardness, wear and corrosion resistance (Wang et al, 2022a;Chen et al, 2023;Wu et al, 2023). The protective coatings prepared by laser cladding technology are able to achieve metallurgical bonding with the metal substrate (Qunshuang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

A new type of high hardness coating for improving drill bit stability in unconventional oil and gas development

Xuan,

Wang

2023

Front. Energy Res.

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In deep unconventional oil and gas development, the problem faced is that PDC bits are eroded by solid-liquid high-speed fluids, resulting in damage. It has led to serious damage to the stability of the drill bit, a decrease in the service life of the drill bit, and an increase in the difficulty in efficient drilling. The essence is that the surface hardness and erosion resistance of the drill bit are not strong enough. Therefore, improving the stability of drill bits is a crucial and urgent problem to be solved. In this paper, Ni60A + 20% WC + 0.3% graphene composite coatings were prepared on a Q235 steel substrate, which is a new type of high hardness coating. Moreover, the effects of microstructure and microhardness of the composite coatings at different laser powers (800 W, 1200 W, 1600 W, and 2000 W) were investigated. The results show that the laser power can significantly affect the microstructure of the coating. The phase composition of the composite coatings is essentially the same at different laser powers. However, there are significant differences in the content of each phase. When the laser power is higher than 1200W, the content of M23C6, Cr3C2 and Fe3C in the composite coating increases and the microhardness of the coating decreases. When the laser power is below 1200 W, the dilution rate of the substrate is low and a metallurgical bond cannot be formed between the composite coating and the substrate.

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Effects of WC particles on microstructure and wear behavior of laser cladding Ni60 composite coatings

Cited by 41 publications

References 29 publications

Effects of ZrW2O8 Content on the Microstructures and Properties of Composite Coatings Produced by Laser Cladding

Effects of ZrW2O8 Content on the Microstructures and Properties of Composite Coatings Produced by Laser Cladding

Microstructure and Wear Resistance of Ti6Al4V Titanium Alloy Laser-Clad Ni60/WC Composite Coating

A new type of high hardness coating for improving drill bit stability in unconventional oil and gas development

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