| Abstrakt: |
In the present study, an attempt has been made to develop in-situgrown ceramic layer on additively manufactured Zr metal by thermal oxidation (TO) treatment. Detailed characterization and testings were performed to determine the thickness of the ceramic layer, oxide phases, hardness, surface roughness, wettability in-vitrowear, and in-vitrocorrosion resistance of theses oxidized specimens. The X-ray diffraction analysis confirmed the formation of ZrO2in the in-situoxide layer and its thickness increased significantly at higher oxidation temperatures. However, among the samples, lowest in-vitrowear rate (2.12 ± 0.36 × 10–6mm3/N m) was demonstrated by the samples oxidized at 600 °C for 6 h. Further this obtained wear rate was correleted with thickness of oxide layer, contact angle, surface rougness, and hardness. It is also noticed that the formation of oxide phases on Zr significantly increase the in-vitrocorrosion resistance compared to untreated Zr substrate in Hanks Balanced Salt solution (HBSS). |
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