Abstract: Magnesium has been a focal point of significant exploration in the biomedical engineering
domain for many years due to its exceptional attributes, encompassing impressive specific strength,
low density, excellent damping abilities, biodegradability, and the sought-after quality of biocompatibility.
The primary drawback associated with magnesium-based implants is their susceptibility to
corrosion and wear in physiological environments, which represents a significant limitation. Research
findings have established that plasma electrolytic oxidation (PEO) induces substantial modifications
in the surface characteristics and corrosion behavior of magnesium and its alloy counterparts. By subjecting
the surface to high voltages, a porous ceramic coating is formed, resulting in not only altered
surface properties and corrosion resistance, but also enhanced wear resistance. However, a drawback
of the PEO process is that excessive pore formation and porosity within the shell could potentially
undermine the coating’s corrosion and wear resistances. Altering the electrolyte conditions by introducing
micro- and nano-particles can serve as a valuable approach to decrease coating porosity
and enhance their ultimate characteristics. This paper evaluates the particle adhesion, composition,
corrosion, and wear performances of particle-incorporated coatings applied to magnesium alloys
through the PEO method.
Keywords: magnesium implants; plasma electrolytic oxidation; particles incorporation; composite
coatings; corrosion behavior; wear resistance
https://doi.org/10.3390/lubricants11120519
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