Evaluation of oxidation behavior of laser clad CoWSi–WSi2 coating on pure Ni substrate at different temperatures

Mehrizi, M. Zarezadeh; Shamanian, M.; Saidi, A.; Shoja-Razazvi, R.; Beigi, R.

doi:10.1016/j.ceramint.2015.04.041

Cited by 29 publications

(6 citation statements)

References 20 publications

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“…Laser cladding leads to the formation of a uniform coating on the substrate material with no signs of crack, and they offer enhanced mechanical properties [122]. Laser cladding has added advantages of high energy density, enhanced metallurgical bonding with the substrate, uniform coating thickness, high compactness, and high performance in comparison with physical vapor deposition (PVD) and chemical vapor deposition (CVD) techniques [123,124]. Grohl et al [8] performed laser cladding through the off-axis powder injection of Al alloy 6061 powder on a 6061-T6511 substrate material using a 4 kW high power diode laser.…”

Section: Laser Claddingmentioning

confidence: 99%

Surface Modification of 6xxx Series Aluminum Alloys

et al. 2022

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Due to their superior mechanical properties, formability, corrosion resistance, and lightweight nature, 6xxx series aluminum (Al) alloys are considered as a promising structural material. Nevertheless, the successful application of these materials depends on their response to the external environment. Recently, designers considered the surface properties an equally important aspect of the component design. Due to this concern, these alloys are subjected to varieties of surface modification methodologies. Many methodologies are explored to modify the 6xxx series Al alloys surfaces effectively. These methods are anodizing, plasma electrolytic oxidation (PEO), cladding, friction stir processing, friction surfacing, melting, alloying, and resolidification using high energy beams, etc. This review work discusses some of these methods, recent research activities on them, important process variables, and their role on the final properties of the surfaces.

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Section: Laser Claddingmentioning

confidence: 99%

Surface Modification of 6xxx Series Aluminum Alloys

et al. 2022

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“…At the beginning of the 1980s, the conventional overlay laser cladding technique was proposed, which involved rapid heating and nonequilibrium solidification that produces dense and porosity-free coatings. These coatings undergo marginal distortion, low heat affecting of substrate and metallurgical bonding between substrate and clad layers [16][17][18].This technique results in high compactness along with remarkable physical and chemical performance [19][20][21]. However, there are several drawbacks which are associated with this conventional process which confines its operational use.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2020

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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.

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“…The results indicated that the alloy coatings comprising Mo 2 Ni 3 Si primary dendrites and ductile phase NiMo exhibited outstanding wear resistance at room temperature due to its high strength and hardness. In recent years, ternary metal silicides, such as Cr 13-Ni 5 Si 2 , CoWSi, Ti 2 Ni 3 Si and Mn 3 Ni 2 Si, have attracted the attention of many researchers because of their excellent wear resistance [18][19][20][21]. As is known, nickel-based solid solution (γ-Ni ss ) with face-centred cubic structure possesses outstanding toughness and strength.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and wear behaviour of laser-cladded γ-Ni_ss/Mo₂Ni₃Si coating

Liu

Zhang

Liu

et al. 2019

Surface Engineering

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A series of γ-Ni ss /Mo 2 Ni 3 Si composite coatings were deposited on the hot-rolled 0.45 wt-% C steel plate using DJ-HL-T5000B CO 2 laser system. The microstructure and phase constitution were studied by XRD and SEM with an attached EDS. Microhardness, toughness and dry sliding wear behaviour of the alloy coating were studied. Research results show that all the designed coatings with different compositions are composed of γ-Ni ss and Mo 2 Ni 3 Si. The volume fraction of Mo 2 Ni 3 Si, as well as the average microhardness, shows an increased tendency as the Ni content decreases from 65% to 50%. The addition of γ-Ni ss ductile phase can effectively improve the toughness of Mo 2 Ni 3 Si-based alloy and prevent the spread of the cracks. Furthermore, the wear resistance of laser-cladded γ-Ni ss /Mo 2 Ni 3 Si coatings exhibits a distinct improvement compared with that of the substrate. The wear mass loss and wear mechanism are affected by the volume fraction of Mo 2 Ni 3 Si.

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Evaluation of oxidation behavior of laser clad CoWSi–WSi2 coating on pure Ni substrate at different temperatures

Cited by 29 publications

References 20 publications

Surface Modification of 6xxx Series Aluminum Alloys

Surface Modification of 6xxx Series Aluminum Alloys

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

Microstructure and wear behaviour of laser-cladded γ-Ni_ss/Mo₂Ni₃Si coating

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Evaluation of oxidation behavior of laser clad CoWSi–WSi2 coating on pure Ni substrate at different temperatures

Cited by 29 publications

References 20 publications

Surface Modification of 6xxx Series Aluminum Alloys

Surface Modification of 6xxx Series Aluminum Alloys

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

Microstructure and wear behaviour of laser-cladded γ-Niss/Mo2Ni3Si coating

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Microstructure and wear behaviour of laser-cladded γ-Ni_ss/Mo₂Ni₃Si coating