Tribological and high-temperature mechanical characterization of cold sprayed and PTA-deposited Stellite coatings

Baiamonte, Lidia; Tuluí, M.; Bartuli, Cecilia; Marini, Danilo; Marino, A.; Menchetti, F.; Pileggi, R.; Pulci, Giovanni; Marra, Francesco

doi:10.1016/j.surfcoat.2019.04.032

Cited by 23 publications

(5 citation statements)

References 19 publications

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“…shows the electrochemical impendence spectroscopy (EIS) results of 20%, 50%, 60% overlap rate. Nyquist diagram composed of the Z' and Z″, and the corrosion resistance was reflected by the radius of capacitive arc (Figure.5(a)), and lager capacitive arc means better corrosion resistance[10]. It could be seen that the radius of capacitive arc (50% overlap rate coating) was the largest and its impedance value was the best, which was consistent with the polarization curve.…”

supporting

confidence: 69%

Corrosion Resistance Mechanism of Stellite-6 Coating on 42CrMo Substrate by Overlap Remelting

Gong,

Sun

et al. 2023

J. Phys.: Conf. Ser.

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To delay the corrosion rate of 42CrMo steel in oil and gas drilling industry, Co-based coatings were prepared on 42CrMo steel through laser cladding at different overlap rate (20%, 50% and 60%). The relationships between microstructure and corrosion behaviour of Stellite-6 coating in Cl ion corrosion medium were analysed by means of SEM, polarization curve and EIS. The results showed that the microstructures of Stellite-6 coating were mainly equiaxial crystal, and the corrosion form of cladding Stellite-6 alloy was pitting corrosion. The best corrosion resistance of Stellite-6 coating was the coating prepared at the overlap rate 50%. The formation of passivation films (Cr2O3 and Cr(OH)3) on the coating could obviously improve the corrosion resistance in Cl ion corrosion medium.

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supporting

confidence: 69%

Corrosion Resistance Mechanism of Stellite-6 Coating on 42CrMo Substrate by Overlap Remelting

Gong,

Sun

et al. 2023

J. Phys.: Conf. Ser.

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“…A spray welding layer of cobalt-based alloy has an excellent high temperature impact wear resistance and outstanding high temperature oxidative stability [17,18]. By optimizing the plasma spray welding process parameters, the quality of the spray welding layer has been improved, and different methods were proposed to reduce the spray welding layer cracks [19][20][21][22]. By adding different materials to the alloy powder to make composite materials, the structure and performance of the plasma spray welding layer are improved [23,24].…”

Section: Introductionmentioning

confidence: 99%

Microscopic Characteristics and Properties of Fe-Based Amorphous Alloy Compound Reinforced WC-Co-Based Coating via Plasma Spray Welding

Wang

et al. 2020

Processes

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Plasma spray welding, as one of the material surface strengthening techniques, has the advantages of low alloy material consumption, high mechanical properties and good coating compactness. Here, the Co alloy, WC and Fe-based amorphous alloy composite coating is prepared by the plasma spray welding method, and the coating characteristics are investigated. The results indicate that the coatings have a full metallurgical bond in the coating/substrate interface, and the powder composition influences the microstructures and properties of the coating. The hardness of coatings increases with the mass fraction of the Fe-based amorphous alloy. The spray welding layer has a much higher wear resistance compared with the carbon steel, and the Fe-20 exhibits a superior wear resistance when compared to others. The results indicate that the amorphous alloy powders are an effective additive to prepare the coating by plasma spray welding for improving the wear resistance of the coating.

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“…Raw samples obtained were cut longitudinal to the casting axis and perpendicular to the woven fabric in order to obtain two samples for each casting. The rods obtained (4 × 3 × 50 and 4 × 2 × 50 mm) for the short and long fibers, respectively, were prepared for four bending tests [13,14] at room temperature with a Zwick Roell Z2.5 testing machine (Zwick Roell, Ulm, Germania). Before mechanical tests, the porosity of the samples was evaluated by density measurement using a ME54 Mettler-Toledo (Mettler-Toledo, Milano, Italy) analytical balance, equipped with a tool for solid density measurements by the Archimedes principle.…”

Section: Methodsmentioning

confidence: 99%

Basalt Short Fibers Dispersion and Fabric Impregnation with Magnesium Alloy (AZ63): First Results

Marini

Valente

2019

Materials

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Magnesium is one of the lightest structural metals used in different industrial sectors and many works in the literature have studied its reinforcement by filler addition. Basalt fibers are natural fillers that have good mechanical properties, excellent resistance to high temperatures, and lower cost than carbon fibers. Considering this, in recent years, they have been increasingly used in the production of composite materials with polymeric matrices. However, very little information is available in the literature about the use of basalt fibers as reinforcement in metal matrix composite materials. It is well known that the impregnation of fiber reinforcement affects the mechanical behavior of the composite materials. The aim of this study was to investigate the impregnation and the behavior of basalt fibers in a magnesium alloy composite material manufactured by a centrifugal casting technique.

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Tribological and high-temperature mechanical characterization of cold sprayed and PTA-deposited Stellite coatings

Cited by 23 publications

References 19 publications

Corrosion Resistance Mechanism of Stellite-6 Coating on 42CrMo Substrate by Overlap Remelting

Corrosion Resistance Mechanism of Stellite-6 Coating on 42CrMo Substrate by Overlap Remelting

Microscopic Characteristics and Properties of Fe-Based Amorphous Alloy Compound Reinforced WC-Co-Based Coating via Plasma Spray Welding

Basalt Short Fibers Dispersion and Fabric Impregnation with Magnesium Alloy (AZ63): First Results

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