Gallium-containing magnesium alloy for potential use as temporary implants in osteosynthesis
В. Е. Баженов, А. В. Колтыгин, A. A. Komissarov, Anna Li, V. A. Bautin, Regina Khasenova, Alexey Anishchenko, A. G. Seferyan, Julia Komissarova, Yuri Estrin
Abstract
In recent years magnesium alloys have been studied intensively with a view to their potential use in bioresorbable medical implants. In the present work the microstructure and the corrosion properties of a new bioresorbable Mg-4 wt% Ga-4 wt% Zn alloy and its variants with low Ca, Nd or Y additions were investigated. These alloys are of interest due to the efficacy of gallium as an element inhibiting bone resorption, osteoporosis, Paget's disease, and other illnesses. A severe plastic deformation technique of equal channel angular pressing (ECAP) was shown to provide the alloys with favorable mechanical properties. In addition, a desirable low rate of degradation in a simulated body fluid (Hanks’ solution) was achieved.