Hybrid Co-Cr/W-WC and Ni-W-Cr-B/W-WC Coating Systems

Vernhes, L.; Azzi, M.; Bousser, Étienne; Schmitt, Thomas; Lamarre, J.-M.; Klemberg-Sapieha, J.E.

doi:10.1007/s11666-015-0357-5

Cited by 9 publications

(2 citation statements)

References 18 publications

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“…An implementation of TS ceramic coatings to improve compression resistance has been reported for metal seated ball valve applications [ 112 , 113 , 114 ]. These ceramic coatings have improved the load carrying capacity and tribological performance of the base material, leading to extended service life of hydrometallurgy components.…”

Section: Growth Opportunities For Thermal Spray In the Iron And Steel...mentioning

confidence: 99%

Applications and Developments of Thermal Spray Coatings for the Iron and Steel Industry

et al. 2023

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The steel making processes involves extreme and harsh operating conditions; hence, the production hardware is exposed to degradation mechanisms under high temperature oxidation, erosion, wear, impact, and corrosive environments. These adverse factors affect the product quality and efficiency of the steel making industry, which contributes to production downtime and maintenance costs. Thermal spray technologies that circumvent surface degradation mechanisms are also attractive for their environmental safety, effectiveness and ease of use. The need of thermal spray coatings and advancement in terms of materials and spray processes are reviewed in this article. Application and development of thermal spray coatings for steel making hardware from the molten metal processing stages such as electric arc and basic oxygen furnaces, through to continuous casting, annealing, and the galvanizing line; to the final shaping process such as cold and hot rolling of the steel strips are highlighted. Specifically, thermal spray feedstock materials and processes that have potential to replace hazardous hard chrome plating are discussed. It is projected that novel coating solutions will be incorporated as awareness and acceptance of thermal spray technology grows in the steel making sectors, which will improve the productivity of the industry.

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Section: Growth Opportunities For Thermal Spray In the Iron And Steel...mentioning

confidence: 99%

Applications and Developments of Thermal Spray Coatings for the Iron and Steel Industry

et al. 2023

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“…These hard coatings act as protective barriers, enhancing resistance to abrasion, corrosion, and high temperatures. This approach, known as duplex surface engineering, leverages multiple established surface technologies to create a multi-layered coating, ensuring the longevity and reliability of critical components operating in demanding environments [12][13][14][15][16]. Goldbaum et al [17] developed a duplex structure using cold spray technology and PVD for aerospace part repair.…”

Section: Introductionmentioning

confidence: 99%

Duplex surface engineering of cold spray Ti coatings and physical vapor-deposited TiN and AlTiN thin films

Alidokht,

Liang,

Bessette

et al. 2024

Surf. Topogr.: Metrol. Prop.

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The feasibility of a duplex coating based on cold spray technology and magnetron sputtering was evaluated for repair applications requiring a “thin-on-thick” layered structure. Commercially pure angular-shaped Ti grade 4 particles are fed to a cold spray gun and accelerated toward a Ti alloy substrate to deposit thick coatings (~4.5 mm). TiN and AlTiN thin films are deposited on polished cold spray coatings using a four-source closed-field unbalanced magnetron sputtering (CFUBMS) system. Microstructure was characterized using focused ion beam (FIB) lift-out, scanning electron microscopy (SEM), and electron channeling contrast imaging (ECCI). The nanoindentation technique was used to evaluate the mechanical properties of coatings. The H/E ratios and H3/E2 ratios for TiN films were found to be 0.098 and 0.26 GPa, respectively, while those for AlTiN films were measured at 0.066 and 0.052 GPa, respectively, suggesting higher capacity of TiN films to withstand both elastic and plastic deformation. Using scratch testing, the adhesion of TiN and AlTiN thin films to cold spray Ti was investigated, with TiN-Ti duplex coatings exhibiting better performance compared to AlTiN-Ti coatings. Tribological testing was performed on duplex coatings using a reciprocating tribometer equipped with an alumina ball counterface. The wear rate for AlTiN-Ti coatings after 2000 sliding cycles was found to be (1.0 x 10-3 ± 0.1 x 10-3 mm3/Nm), three orders of magnitudes higher than that for TiN-Ti (8 x 10-6 ± 2 x 10-6 mm3/Nm. SEM was used to reveal worn surface morphologies and cross-sectional analysis of the wear track. Subsurface microstructural changes due to wear were examined using focused ion beam cross-sectioning, revealing bending cracks and tribofilm formation.

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Nanostructured and Conventional Cr2O3, TiO2, and TiO2-Cr2O3 Thermal-Sprayed Coatings for Metal-Seated Ball Valve Applications in Hydrometallurgy

Vernhes¹,

Bekins²,

Lourdel³

et al. 2016

J Therm Spray Tech

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Hybrid Co-Cr/W-WC and Ni-W-Cr-B/W-WC Coating Systems

Cited by 9 publications

References 18 publications

Applications and Developments of Thermal Spray Coatings for the Iron and Steel Industry

Applications and Developments of Thermal Spray Coatings for the Iron and Steel Industry

Duplex surface engineering of cold spray Ti coatings and physical vapor-deposited TiN and AlTiN thin films

Nanostructured and Conventional Cr2O3, TiO2, and TiO2-Cr2O3 Thermal-Sprayed Coatings for Metal-Seated Ball Valve Applications in Hydrometallurgy

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