Preparation and Characterization of Laser Clad NiCrBSi Coating Reinforced with WC

Wang, Dongsheng; Chu, Jiaqing; Qu, Guang; Zhou, Xinhua

doi:10.1088/1742-6596/1965/1/012110

J. Phys.: Conf. Ser.

2021

DOI: 10.1088/1742-6596/1965/1/012110

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Preparation and Characterization of Laser Clad NiCrBSi Coating Reinforced with WC

Dongsheng Wang

Jiaqing Chu

Guang Qu

et al.

Abstract: NiCrBSi coating reinforced with WC was prepared on the steel substrate surface of 42CrMo alloy structure based on coaxial powder-feeding laser cladding technology by using the YLS-6000 fiber laser. Phase composition, microstructure, microhardness and wear resistance of specimens were discussed by the X-ray diffractometer (XRD), scanning electron microscope (SEM), microhardness meter and ring-block friction wear testing machine. Results demonstrated that the composite coating is mainly composed of γ-Ni solid so… Show more

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Cited by 2 publications

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Surface Modification of 42CrMo Steels: A Review from Wear and Corrosion Resistance

Zhang,

Wang,

Liu

et al. 2024

Coatings

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This work reviews surface modification techniques for improving the wear and corrosion resistance of 42CrMo steel. The advantages and disadvantages of various methods, including thermal spraying, deposition, hardfacing, laser cladding, nitriding, and laser surface treatment, are discussed. The review elaborates on the materials commonly employed in laser cladding technology, including iron-based, cobalt-based, nickel-based, and high-entropy alloys and reinforced composite coatings. Furthermore, the mechanisms and methods of improving the wear and corrosion resistance of 42CrMo steel are summarized. Finally, this review presents research shortcomings and future opportunities of surface modification techniques. This review also provides a theoretical guide for the application of 42CrMo steel.

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Surface Modification of 42CrMo Steels: A Review from Wear and Corrosion Resistance

Zhang,

Wang,

Liu

et al. 2024

Coatings

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Research on the Preparation Process and Performance of a Wear-Resistant and Corrosion-Resistant Coating

Wang

2022

Crystals

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In order to study the wear resistance and corrosion resistance of a composite material with a Fe316L substrate and Co-Cr-WC coating, Co-Cr alloy coatings with different mass fractions of WC (hard tungsten carbide) were prepared on a Fe316L substrate by laser cladding technology. The phase composition, microstructure and element distribution were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The hardness of the samples was tested by a Vickers microhardness tester, the friction coefficient and wear amount of the samples were tested by a friction and wear tester, and the corrosion resistance of the samples was tested by an electrochemical corrosion workstation. The results showed that the macroscopic appearance of the coating surface was good without obvious cracks, and the microstructures were mostly equiaxed crystals, cellular crystals and dendrites. With the addition of WC, the structures near the particles became more refined and extended from the surface of the WC particles. When the WC content was 40%, defects such as fine cracks appeared in the coating. The average microhardness of the 30%WC-Co-Cr coating was 732.6 HV, which was 2.29 times that of the Fe316L matrix; the friction coefficient was 0.16, and the wear amount was 14.64 × 10−6 mm3 N−1 m−1, which were 42.1% and 44.47% of the matrix, respectively; the self-corrosion voltage of the cladding layer was 120 mV, and the self-corrosion current was 7.263 × 10−4 A/cm2, which were 30.3% and 7.62% of the substrate, respectively. The experimental results showed that the laser cladding Co-Cr-WC composite cladding layer could significantly improve the wear resistance and corrosion resistance of the Fe316L matrix under the optimal laser process parameters.

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Preparation and Characterization of Laser Clad NiCrBSi Coating Reinforced with WC

Cited by 2 publications

References 10 publications

Surface Modification of 42CrMo Steels: A Review from Wear and Corrosion Resistance

Surface Modification of 42CrMo Steels: A Review from Wear and Corrosion Resistance

Research on the Preparation Process and Performance of a Wear-Resistant and Corrosion-Resistant Coating

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