Effect of HfO2 Particles on Ceramic Coating Fabricated on Ti6Al4V Alloy via Plasma Electrolytic Oxidation
نویسندگان
چکیده
Hafnium dioxide (HfO2) has a wide bandgap and high dielectric constant. We prepared ceramic coatings on Ti6Al4V alloys via plasma electrolytic oxidation (PEO) in an electrolyte with HfO2 particles. The influence of the particles microstructure, phase composition, elemental distribution, corrosion resistance PEO was systematically investigated. results showed that addition increased voltage (from 462 to 472 V) promoted microarc sintering reaction so thickness hardness resulting coating increased. Moreover, quantity micropores surface caused by discharge decreased after adding X-ray diffraction patterns confirmed were incorporated into remelting microarc. Furthermore, remarkably introducing HfO2, which attributed increase electrode potential densification structure.
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ژورنال
عنوان ژورنال: Coatings
سال: 2023
ISSN: ['2079-6412']
DOI: https://doi.org/10.3390/coatings13050967