TY - JOUR
T1 - In-Vitro Corrosion and Wear Studies of Ceramic Layers on Additively Manufactured Zr Metal for Implant Applications
AU - Reger, Nimu Chand
AU - Devi, K. Bavya
AU - Balla, Vamsi Krishna
AU - Das, Mitun
N1 - Publisher Copyright:
© 2023, The Indian Institute of Metals - IIM.
PY - 2023/7
Y1 - 2023/7
N2 - In the present study, an attempt has been made to develop in-situ grown 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-vitro wear, and in-vitro corrosion resistance of theses oxidized specimens. The X-ray diffraction analysis confirmed the formation of ZrO2 in the in-situ oxide layer and its thickness increased significantly at higher oxidation temperatures. However, among the samples, lowest in-vitro wear rate (2.12 ± 0.36 × 10–6 mm3/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-vitro corrosion resistance compared to untreated Zr substrate in Hanks Balanced Salt solution (HBSS).
AB - In the present study, an attempt has been made to develop in-situ grown 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-vitro wear, and in-vitro corrosion resistance of theses oxidized specimens. The X-ray diffraction analysis confirmed the formation of ZrO2 in the in-situ oxide layer and its thickness increased significantly at higher oxidation temperatures. However, among the samples, lowest in-vitro wear rate (2.12 ± 0.36 × 10–6 mm3/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-vitro corrosion resistance compared to untreated Zr substrate in Hanks Balanced Salt solution (HBSS).
KW - Contact angle
KW - Corrosion resistance
KW - Hardness
KW - In-vitro wear
KW - Thermal oxidation
KW - Zirconium
KW - ZrO and ZrO
UR - http://www.scopus.com/inward/record.url?scp=85150219769&partnerID=8YFLogxK
U2 - 10.1007/s12666-023-02893-6
DO - 10.1007/s12666-023-02893-6
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AN - SCOPUS:85150219769
SN - 0972-2815
VL - 76
SP - 1949
EP - 1958
JO - Transactions of the Indian Institute of Metals
JF - Transactions of the Indian Institute of Metals
IS - 7
ER -