Microstructural and tribological properties of induction cladded NiCrBSi /WC composite coatings

Kılıçay, Koray; Buytoz, Soner; Ulutan, Mustafa

doi:10.1016/j.surfcoat.2020.125974

Cited by 27 publications

(12 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The XRD spectrum of the coating shows the presence of the Ni/Ni 3 B phase, Cr 7 C 3 and CrB. The CrB borides and Cr 7 C 3 carbides are often present in NiCrBSi coatings, which was also confirmed by several authors [ 19 , 44 ].…”

Section: Resultssupporting

confidence: 73%

Tribological Properties of Solid Solution Strengthened Laser Cladded NiCrBSi/WC-12Co Metal Matrix Composite Coatings

et al. 2022

View full text Add to dashboard Cite

NiCrBSi, WC-12Co and NiCrBSi with 30, 40 and 50 wt.% WC-12Co coatings were produced on low carbon steel by laser cladding with an Nd:YAG laser with a multi-jet coaxial cladding-nozzle. The microstructure properties after WC-12Co alloying were investigated by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), electron backscatter diffraction (EBSD) and Vickers hardness tests. The resulting microstructures consisted of a γ-Ni and Ni3B matrix, strengthened with Co and W, Ni3Si, CrB, Cr7C3, Cr23C6, WC/W2C phases. In coatings with 30, 40 and 50 wt.% WC-12Co, a solid solution, strengthened multi-matrix NiCrWCo phase formed, which yielded a higher matrix hardness. Wear tests that monitored the friction coefficients were performed with a tribometer that contained a ball-on-disc configuration, Al2O3 counter-body and reciprocal sliding mode at room temperature. The major wear mode on the NiCrBSi coatings without the WC-12Co was adhesive with a high wear rate and visible material loss by flaking, delamination and micro-ploughing. The addition of WC-12Co to the NiCrBSi coating significantly increased the wear resistance and changed the major wear mechanism from adhesion to three-body abrasion and fatigue wear.

show abstract

Section: Resultssupporting

confidence: 73%

Tribological Properties of Solid Solution Strengthened Laser Cladded NiCrBSi/WC-12Co Metal Matrix Composite Coatings

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Tungsten carbide (WC) is a cemented carbide material with high hardness, thermal stability, and wear resistance. It has a low thermal expansion coefficient and good wettability with Ni-based alloys and is widely used as reinforcement [11,12]. Yao [13] studied the influence of WC(Co) content on the microstructure and wear behaviour of NiCrBSi-WC(Co) coatings, produced by high-velocity oxyfuel (HVOF) spraying technique.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and corrosion behaviour of WC/NiCrBSi coatings by vacuum cladding

Zhang

Wang

et al. 2022

Materials Science and Technology

View full text Add to dashboard Cite

In this work, the WC-NiCrBSi and in-situ synthesised WC (IWC)-NiCrBSi coatings were successfully fabricated on SS 316 L using vacuum cladding process to investigate the WC-reinforced NiCrBSi alloy by the two methods. XRD, SEM and EDS were performed to characterise the phase constituents, microstructure and chemical composition, respectively. Subsequently, electrochemical corrosion and cavitation tests of the coatings were carried out in 3.5 wt-% NaCl solution. The results showed that the WC-NiCrBSi cladding coating was mainly composed of γ-Ni, FeNi3, WC, Cr23C6 and CrB phases, while the IWC-NiCrBSi cladding coating was composed of γ-Ni, WC, FeNi3, Cr23C6, Cr7C3, CrB phases. The corrosion current density of the WC-NiCrBSi and IWC-NiCrBSi coatings were 5.01 × 10−7 and 3.57 × 10−7 A/cm2, respectively. The combined analysis of cumulative weight loss curve and cavitation morphology revealed a better cavitation resistance by the IWC-NiCrBSi coating than the WC-NiCrBSi coating in 3.5 wt-% NaCl solution.

show abstract

“…Kılıçay et al [65] pointed out that the Gibbs free energy of WC formation is −0.04 kJ/mol at 1200 • C, which is slightly lower than that of W 2 C formation (−0.03 kJ/mol at 1200 • C). However, Cr may draw C from WC to form a chrome carbide structure at a high temperature [65]. Therefore, a relatively high content of Cr is observed from the EDS result of point 4.…”

Section: Microstructure Featuresmentioning

confidence: 97%

“…It has been reported that the decarbonization of WC → W 2 C + C would take place at a high temperature [64,65]. Kılıçay et al [65] pointed out that the Gibbs free energy of WC formation is −0.04 kJ/mol at 1200 • C, which is slightly lower than that of W 2 C formation (−0.03 kJ/mol at 1200 • C). However, Cr may draw C from WC to form a chrome carbide structure at a high temperature [65].…”

Section: Microstructure Featuresmentioning

confidence: 99%

Phase Transformation-Induced Improvement in Hardness and High-Temperature Wear Resistance of Plasma-Sprayed and Remelted NiCrBSi/WC Coatings

Sha

Chen

Liu

et al. 2020

Metals

View full text Add to dashboard Cite

The remelting method is introduced to improve the properties of the as-sprayed NiCrBSi coatings. In this work, tungsten carbide (WC) was selected as reinforcement and the as-sprayed and remelted NiCrBSi/WC composite coatings were investigated by X-ray diffraction, scanning electron microscopy, hardness test and tribology test. After spraying, WC particles are evenly distributed in the coating. The remelting process induced the decarburizing reaction of WC, resulting in the formation of dispersed W2C. The dispersed W2C particles play an important role in the dispersion strengthening. Meanwhile, the pores and lamellar structures are eliminated in the remelted NiCrBSi/WC composite coating. Due to these two advantages, the hardness and the high-temperature wear resistance of the remelted NiCrBSi/WC composite coating are significantly improved compared with those with an as-sprayed NiCrBSi coating; the as-sprayed NiCrBSi coating, as-sprayed NiCrBSi/WC composite coating and remelted NiCrBSi/WC composite coating have average hardness of 673.82, 785.14, 1061.23 HV, and their friction coefficients are 0.3418, 0.3261, 0.2431, respectively. The wear volume of the remelted NiCrBSi/WC composite coating is only one-third of that of the as-sprayed NiCrBSi coating.

show abstract

Microstructural and tribological properties of induction cladded NiCrBSi /WC composite coatings

Cited by 27 publications

References 31 publications

Tribological Properties of Solid Solution Strengthened Laser Cladded NiCrBSi/WC-12Co Metal Matrix Composite Coatings

Tribological Properties of Solid Solution Strengthened Laser Cladded NiCrBSi/WC-12Co Metal Matrix Composite Coatings

Microstructure and corrosion behaviour of WC/NiCrBSi coatings by vacuum cladding

Phase Transformation-Induced Improvement in Hardness and High-Temperature Wear Resistance of Plasma-Sprayed and Remelted NiCrBSi/WC Coatings

Contact Info

Product

Resources

About