Performance characterization of Ni60-WC coating on steel processed with supersonic laser deposition

Luo, Fang; Cockburn, Andrew; Sparkes, Martin; Lupoi, Rocco; Chen, Zhijun; O’Neill, W; Yao, Jianhua; Liu, Rong

doi:10.1016/j.dt.2014.09.003

Cited by 30 publications

(8 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several studies on WC-metal systems with laser melting processes have been conducted. These systems include WC-Co [1][2][3], WC-Ni [4][5][6][7][8][9], and WC-Fe [9,10]. Recently, designs for AM techniques such as functional gradient materials [6,11,12] and lattice structures [13][14][15] have been applied to increase fracture toughness.…”

Section: Introductionmentioning

confidence: 99%

Effect of different WC particle shapes on laser-exposed microstructures during the directed energy deposition

et al. 2021

View full text Add to dashboard Cite

Tungsten carbide (WC) in Ni-based powders is a promising candidate for laser-based additive manufacturing because WC is an extremely hard material, whereas Ni is tough and weldable. However, WC particles that are directly exposed to a laser beam can be degraded or disintegrated into tungsten and carbon as a result of excess energy. In contrast, particles in the melt pool are relatively stable. In this study, the direct energy deposition method was used with irregular and spherical WC particles in metal powder. Irregular WC particles were found to be more directly affected by laser irradiation. To explain the effects of WC particle shapes on direct laser damage, a finitepoint calculation was performed to estimate the sinking time in the melt pool. The rectangular shape particles a longer sinking time depending on the rotation angle, whereas the spherical particles sank uniformly based on the difference in the effective area of resistance.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of different WC particle shapes on laser-exposed microstructures during the directed energy deposition

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Furthermore, nickel can also reduce the phase transformation temperature and thus be very advantageous for grain refinement purposes [27]. Nowadays, nickel-based self-fluxing alloy powder is catching the attention of a multitude of investigators and a number of intensive researches [28][29][30][31][32] have already been carried out to successfully fabricate wear-resistant surfaces for harsh and aggressive environments.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Tribological Properties of LA43M Magnesium Alloy by Ni60 Coating via Ultra-High-Speed Laser Cladding

et al. 2020

View full text Add to dashboard Cite

Laser modification techniques have been widely adopted in the field of surface engineering. Among these modified techniques, ultra-high-speed laser cladding is trending most nowadays to fabricate wear-resistant surfaces. The main purpose of this research is to provide a detailed insight of ultra-high-speed laser cladding of hard Ni60 alloy on LA43M magnesium alloy to enhance its surface mechanical properties. Multiple processing parameters were investigated to obtain the optimal result. The synthesized coating was studied microstructurally by field emission scanning electron microscopy (FESEM) equipped with an energy dispersive spectrometer (EDS) and X-ray diffraction (XRD). The microhardness and wear resistance of the Ni60 coating were analyzed under Vickers hardness and pin on disc tribometer respectively. The obtained results show that the dense Ni60 coating was fabricated with a thickness of 300 μm. No cracks and porosities were detected in cross-sectional morphology. The Ni60 coating was mainly composed of γ-Ni and hard phases (chromium carbides and borides). The average microhardness of coating was recorded as 948 HV0.3, which is approximately eight times higher than that of the substrate. Meanwhile, the Ni60 coating exhibited better wear resistance than the substrate, which was validated upon the wear loss and wear mechanism. The wear loss recorded for the substrate was 6.5 times higher than that of the coating. The main wear mechanism in the Ni60 coating was adhesive while the substrate showed abrasive characteristics.

show abstract

“…Ni35A possesses high plasticity but low hardness. However, its hardness could be improved by incorporating add-on materials [ 9 ]. TiC has a high melting point, high hardness, outstanding wear resistance, and a low coefficient of friction.…”

Section: Introductionmentioning

confidence: 99%

Computational and Experimental Investigation of Micro-Hardness and Wear Resistance of Ni-Based Alloy and TiC Composite Coating Obtained by Laser Cladding

Lian

Zhang

et al. 2019

Materials

View full text Add to dashboard Cite

The influence of processing parameters on the micro-hardness and wear resistance of a Ni-based alloy and titanium carbide (TiC) composite cladding layer was studied. Mathematical models were developed to predict the micro-hardness and wear resistance of the cladding layer by controlling the laser cladding processing parameters. Key processing parameters were the laser power, scanning speed, gas flow, and TiC powder ratio. The models were validated by analysis of variance and parameter optimization. Results show that the micro-hardness is positively correlated with laser power and TiC powder ratio, where the TiC powder ratio shows the most significant impact. The wear volume decreased with an increasing TiC powder ratio. The targets for the processing parameter optimization were set to 62 HRC for micro-hardness and a minimal volume wear. The difference between the model prediction value and experimental validation result for micro-hardness and wear volume were 1.87% and 6.33%, respectively. These models provide guidance to optimize the processing parameters to achieve a desired micro-hardness and maximize wear resistance in a composite cladding layer.

show abstract

Performance characterization of Ni60-WC coating on steel processed with supersonic laser deposition

Cited by 30 publications

References 24 publications

Effect of different WC particle shapes on laser-exposed microstructures during the directed energy deposition

Effect of different WC particle shapes on laser-exposed microstructures during the directed energy deposition

Enhanced Tribological Properties of LA43M Magnesium Alloy by Ni60 Coating via Ultra-High-Speed Laser Cladding

Computational and Experimental Investigation of Micro-Hardness and Wear Resistance of Ni-Based Alloy and TiC Composite Coating Obtained by Laser Cladding

Contact Info

Product

Resources

About