Tuning of the Mg Alloy AZ31 Anodizing Process for Biodegradable Implants

Zaffora A, Di Franco F, Virtù D, Carfì Pavia F, Ghersi G, Virtanen S, Santamaria M (2021)

Publication Type: Journal article

Publication year: 2021

Journal

ACS Applied Materials and Interfaces American Chemical Society

DOI: 10.1021/acsami.0c22933

Abstract

Coatings were grown on the AZ31 Mg alloy by a hard anodizing process in the hot glycerol phosphate-containing electrolyte. Anodizing conditions were optimized, maximizing corrosion resistance estimated by impedance measurements carried out in Hank's solution at 37 °C. A post anodizing annealing treatment (350 °C for 24 h) allowed us to further enhance the corrosion resistance of the coatings mainly containing magnesium phosphate according to energy-dispersive X-ray spectroscopy and Raman analyses. Gravimetric measurements revealed a hydrogen evolution rate within the limits acceptable for application of AZ31 in biomedical devices. In vitro tests demonstrated that the coatings are biocompatible with a preosteoblast cell line.

Authors with CRIS profile

Sannakaisa Virtanen Professur für Werkstoffwissenschaften (Korrosion und Oberflächentechnik)

Involved external institutions

Università degli Studi di Palermo IT Italy (IT)

How to cite

APA:

Zaffora, A., Di Franco, F., Virtù, D., Carfì Pavia, F., Ghersi, G., Virtanen, S., & Santamaria, M. (2021). Tuning of the Mg Alloy AZ31 Anodizing Process for Biodegradable Implants. ACS Applied Materials and Interfaces. https://doi.org/10.1021/acsami.0c22933

MLA:

Zaffora, Andrea, et al. "Tuning of the Mg Alloy AZ31 Anodizing Process for Biodegradable Implants." ACS Applied Materials and Interfaces (2021).

BibTeX: Download