Microstructure and properties evolution of Co06/Ni60A duplex coating on copper by plasma cladding

Li, Dan; Zhang, Chao; Wang, Ruidong; Zhang, Jun; Hu, Rong; Zhang, Kun; Li, Guangshi; Lu, Xionggang

doi:10.1016/j.surfcoat.2021.127978

Cited by 15 publications

(4 citation statements)

References 41 publications

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“…This indicates that the worn coating is still in the upper area (Figure 5). Wear loss weight is a technical indicator that directly reflects the wear resistance of materials [3]. This shows that the solid solution of in-situ generated TiC ceramic particles in the nickel matrix can indeed improve the wear resistance of the material.…”

Section: Resultsmentioning

confidence: 99%

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An in-situ synthesised TiC/Ni60A composite coating on copper by plasma cladding

Wang

Zhang

et al. 2023

Materials Science and Technology

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The in-situ synthesis of TiC reinforced Ni-based coatings were prepared on copper substrates by using precursor materials (TiFe and Cr3C2) by plasma cladding. The coating consisted mainly of γ-(Cu, Fe, Ni), TiC, CrB and Cr23C6. The generated TiC particles tend to float up to the upper part of the coating to aggregate and grow, so the TiC concentration in the upper part is larger. The hardness of the TiC composite coating is distributed in a gradient, and the average hardness is 700 HV, which is 13.0 times that of the copper matrix. The wear mechanism of TiC composite coating is abrasive wear, and the wear resistance is 13.0 times that of the copper substrate.

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Section: Resultsmentioning

confidence: 99%

“…However, low hardness and poor wear resistance make it prone to failure in abrasive environments, thereby reducing its service life [2]. Therefore, it is necessary to take some surface cladding techniques to improve the performance of the copper material surface [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

An in-situ synthesised TiC/Ni60A composite coating on copper by plasma cladding

Wang

Zhang

et al. 2023

Materials Science and Technology

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“…Furthermore, Figure 11 d clearly shows the presence of a large amount of wear debris and a few cracks on the surface of the Cu substrate. This is due to the surface of Cu being prone to continuous plastic deformation under contact stress because of the low hardness, thus resulting in large area tearing, which is a typical adhesive wear [ 45 ]. In addition, Figure 11 e demonstrates that, after the friction wear test, the surface of LGC is relatively flat and, though it is a great improvement over the Cu substrate, the peeling of the coating material still results in some wear debris, cracks, and pits.…”

Section: Resultsmentioning

confidence: 99%

Microstructure and Properties of Nickel-Based Gradient Coatings Prepared Using Cold Spraying Combined with Laser Cladding Methods

et al. 2023

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A cold spray–laser cladding composite gradient coating (CLGC) was successfully formed on a Cu substrate. In comparison with traditional laser cladding gradient coatings (LGC), cold spraying the pre-set Ni-Cu alloy’s intermediate transition layer not only mitigates the negative impacts due to the high reflectivity of the copper substrate but also helps to minimize the difference in the coefficients of thermal expansion (CTE) between the substrate and coating. This reduces the overall crack sensitivity and improves the cladding quality of the coating. Besides this, the uniform distribution of hard phases in CLGC, such as Ni11Si12 and Mo5Si3, greatly increases its microhardness compared to the Cu substrate, thus resulting in the value of 478.8 HV0.5 being approximately 8 times that of the Cu substrate. The friction coefficient of CLGC is lowered compared to both the Cu substrate and LGC with respective values of 0.28, 0.54, and 0.43, and its wear rate is only one-third of the Cu substrate’s. These results suggest CLGC has excellent anti-wear properties. In addition, the wear mechanism was determined from the microscopic morphology and element distribution and was found to be oxidative and abrasive. This approach combines cold spraying and laser cladding to form a nickel-based gradient coating on a Cu substrate without cracks, holes, or other faults, thus improving the wear resistance of the Cu substrate and improving its usability.

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“…The results showed that the front-end temperature of the tuyere was directly related to the coating material. Li D et al [18] prepared a dual-phase wear-resistant layer structure of Co06/Ni60A using plasma cladding technology, which established a gradient temperature field at the front end of the tuyere and is referred to as a gradient wear-resistant layer. This new coating structure has been shown to have better long-term stability during use.…”

Section: Introductionmentioning

confidence: 99%

Optimization Study of Annular Wear-Resistant Layer Structure for Blast Furnace Tuyere

Zhu

Zhang

Zong

et al. 2023

Metals

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A new tuyere small sleeve coating structure that balances the high thermal conductivity of the copper substrate with the high wear resistance of the protective layer was developed in this paper. This structure can achieve a low-carbon blast furnace by reducing the heat loss from the tuyere. The 3D model was established via Solidworks for modeling and Ansys for numerical simulation, the temperature field of the annular wear-resistant layer structure tuyere small sleeve with different widths of the wear-resistant layer was analyzed and compared with the temperature and stress field of traditional tuyere small sleeve. The results show that the design of the annular wear-resistant layer structure of the tuyere small sleeve is more effective. The new annular wear-resistant layer structure for the tuyere small sleeve results in a decrease of 24 K in the average temperature of the wear-resistant coating. The comparison of this structure with tuyere sleeves without wear-resistant coatings shows a 16.7% reduction in heat loss, improves the wear resistance of the tuyere, providing new technological ideas for low-carbon blast furnace production. Compared with the tuyere sleeve completely covered with a wear-resistant coating, the maximum thermal stress of this structure decreased from 624.98 Mpa to 427.99 Mpa, resulting in a reduction of 31.5%, which is beneficial for the service life of the tuyere sleeve. The copper surface temperature of the new tuyere small sleeve is in a safe range when the temperature is below 2273 K.

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Microstructure and properties evolution of Co06/Ni60A duplex coating on copper by plasma cladding

Cited by 15 publications

References 41 publications

An in-situ synthesised TiC/Ni60A composite coating on copper by plasma cladding

An in-situ synthesised TiC/Ni60A composite coating on copper by plasma cladding

Microstructure and Properties of Nickel-Based Gradient Coatings Prepared Using Cold Spraying Combined with Laser Cladding Methods

Optimization Study of Annular Wear-Resistant Layer Structure for Blast Furnace Tuyere

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