In-vitro evaluation of Zn-42Mg-4Ca alloy fabricated by powder metallurgy as a biodegradable biomaterial
International Journal of Development Research
In-vitro evaluation of Zn-42Mg-4Ca alloy fabricated by powder metallurgy as a biodegradable biomaterial
Received 08th October, 2020; Received in revised form 07th November, 2020; Accepted 04th December, 2020; Published online 30th January, 2021
Copyright © 2021, Jorge Alberto Carvalho, Márcio T. Fernandes, Alexandre A. Ribeiro and José Adilson Castro. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
In this study, a biodegradable alloy Zn-42Mg-4Ca alloy fabricated by powder metallurgy was evaluated. The idea was to create an alloy that could optimize the good behaviors of some recognized biocompatible elements as zinc, magnesium, and calcium. The alloy's corrosion resistancewas investigated, evaluating its biodegradation behavior in a simulated physiological environment and the potential-dynamic polarization curve. Additionally, microhardness analyses were carried out as a mechanical characteristic representative of the alloy, and complementary optical and scanning electron microscopy for microstructure. The results showed a good corrosion behavior, good superficial resistance, and microstructure properties that could point out some reasons for the interesting results achieved with the evaluated alloy, founding to be potentially used as a biodegradable implant because it exhibited a satisfactory biodegradation rate (0.09 mg cm-2h-1)which could prevent their premature rupture during the required period of bone healing.
