Journal
TRIBOLOGY INTERNATIONAL
Volume 146, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2019.106135
Keywords
Plasma electrolytic oxidation; Graphene oxide; Tribology properties; Corrosion resistance
Categories
Funding
- National Natural Science Foundation of China [51601015]
- Beijing Natural Science Foundation [2182017]
- Science and Technology Project of Science and Technology Project of Beijing Municipal Education Commission [KM201910017004]
- URT program of Beijing Institute of Petrochemical Technology [2018J00044, 2018J00046]
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Graphene oxide (GO) was incorporated into a plasma electrolytic oxidation (PEO)-based coating to further promote the tribological properties and corrosion resistance of AZ31 Mg alloys. The results demonstrated that the embedded GO additives reduced the surface roughness and porosity, promoted the formation of blocked pores and minor-sized structures, and enhanced the microhardness of the GO-containing coatings. The composite coating prepared with 20 mL L-1 GO additive was sufficient for sustaining a low and stable friction coefficient and high wear endurance. In addition, the inclusion of a GO additive in the composite coating could effectively decrease the corrosion rate and enhance the polarization resistance.
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