Investigation of the Friction and Corrosion Behavior of Laser-Clad Cobalt-Based Coatings in Sea Water

Cui, Chen; Wu, Meiping

doi:10.1007/s11041-021-00709-2

Cited by 1 publication

(1 citation statement)

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“…Stellite alloys are a kind of cobalt-based alloy with splendid high-temperature properties, wear and corrosion resistance, and impact resistance. [1][2][3] Surface-modified materials created with Stellite alloys have a wide range of application contexts in the field of surface engineering. Due to the discrete distribution of hard phases, Stellite alloys can maintain high wear resistance in environments at high temperatures [4][5][6] and have good service performance in combustion turbines, 7 hightemperature valves 8 and petrochemical components.…”

Section: Introductionmentioning

confidence: 99%

Effect of Mo on wear resistance of Stellite31 cladding layer

Lu,

Liu,

Pan

et al. 2024

Surface Engineering

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Stellite alloys are a kind of cobalt-based alloys, which have excellent properties and are widely used in numerous areas. However, the wear resistance of Stellite alloys is poor at room temperature. In this study, Stellite31 cladding layers added with 0%, 1%, 2% and 3% of Mo(wt-%) were prepared by laser cladding. The grain sizes were measured by scanning electron microscope images, the distributions of Mo were analysed by energy dispersive X-ray spectrometry, the physical phase compositions were analysed by X-ray diffractometer, and the wear resistance was evaluated by reciprocating friction wear tester and wet sand wear testing machine. The results showed that the grain sizes of the cladding layers decreased with the increase of Mo content, the wear loss of the cladding layers became lower and the friction coefficient decreased under the same test conditions. It was concluded that increasing the Mo content could improve the wear resistance of the Stellite31 cladding layer at room temperature.

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