Effect of Mo Content on Microstructure and Fatigue Properties of Ni60 Coating Produced by Plasma Cladding

Wen, Feijuan; Long, Zhang; Xing, Zhiguo; Wen, Pengcheng; Zhou, Peishan

doi:10.1007/s11666-023-01576-4

Cited by 2 publications

(1 citation statement)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When added to alloy coatings, graphene can reduce the friction coefficient, increase the hardness, and improve the wear resistance. Plasma cladding technology [10][11][12][13][14][15], a metal-based coating preparation process, offers significant advantages in enhancing the surface properties, reducing the production costs, and improving the efficiency. It is difficult to incorporate graphene into CuCrZr powder due to substantial density differences and the poor material compatibility.…”

Section: Introductionmentioning

confidence: 99%

Study on the Effects of GO on the Microstructure and Wear Resistance of CuCrZr Plasma Cladding Coatings

Wang,

Xiang,

Qiao

et al. 2024

Coatings

View full text Add to dashboard Cite

This study investigates the enhancement of wear resistance in CuCrZr rails through the plasma cladding of CuCrZr-GO coatings with a varying graphene oxide (GO) content. The microstructure, phase composition, and mechanical properties of CuCrZr coatings containing 0%, 0.2%, 0.4%, 0.6%, and 0.8% GO were examined using scanning electron microscopy (SEM), X-ray diffraction (XRD), ESD surface scanning, friction and wear tests, and hardness analysis. The findings indicated that increasing the GO content from 0% to 0.6% results in a transition in the coating microstructure from columnar to equiaxed crystals, leading to an improved density. However, at 0.8% GO, numerous porosity defects were observed. The coating containing 0.6% graphene oxide (GO) exhibited a superior performance, with a hardness of 75, a friction coefficient of approximately 0.7, and a wear mass of 2.84 mg under a 10 N load. In comparison to the CuCrZr coating lacking GO, the hardness showed an increase of around 4.8%, the friction coefficient decreased by approximately 5.1%, and the wear mass diminished by 59.4%. These findings hold significant implications for extending the operational lifespan of electromagnetic railguns.

show abstract