The Effect of Zirconium Addition on Corrosion Behavior of Zn-Zr Alloys as Biodegradable Orthopedic Implant Application

Rizki Yuni Pratiwi, Achmad Fauzi Trinanda, Moh Waqyan Ghani Fahmi, Sotya Astutiningsih, Ahmad Zakiyuddin

Research output: Contribution to journalConference articlepeer-review

Abstract

In this work, corrosion behaviour of zinc-based alloys with addition of 0.5%, 1%, and 2% of zirconium for biodegradable material as orthopaedic implant were investigated. The potentiodynamic polarization method is carried out to determine the corrosion resistance and corrosion rate of each composition in order to observe the effect of zirconium addition in a Kokubo simulated body fluid solution. The result showed that the addition of 0.5% and 1% of zirconium would decrease the corrosion rate of Zn-xZr alloys corresponding to 0.079 mm/year and 0.116 mm/year whereas the 2% addition would increase the rate to 0.188 mm/year due to the formation of Zr-rich precipitates inside the alloys. The passivation zone on the polarization curve showed the formation of the protected thin layer on the surface of the alloys which caused the corrosion rate to decrease, therefore confirmed the degradable ability of the Zn-xZr alloys. In general, the corrosion rates of Zn-xZr alloys were higher than Fe-based alloys and lower than Mg-based alloys. Moreover, the corrosion rates were much lower than the maximum rate of 0.4 mm/year for biodegradable implants so Zn-xZr alloys were suitable as biodegradable material implant for orthopaedic application.

Original languageEnglish
Article number012085
JournalIOP Conference Series: Materials Science and Engineering
Volume833
Issue number1
DOIs
Publication statusPublished - 30 Jun 2020
Event2nd International Conference on Chemistry and Material Science, IC2MS 2019 - Malang, East Java, Indonesia
Duration: 2 Nov 20193 Nov 2019

Fingerprint

Dive into the research topics of 'The Effect of Zirconium Addition on Corrosion Behavior of Zn-Zr Alloys as Biodegradable Orthopedic Implant Application'. Together they form a unique fingerprint.

Cite this