Mechanical Properties of Magnesium-Based Alloys for Orthopedic Applications

Keywords

magnesium alloys, Young’s modulus, microhardness, adhesive strength

Abstract

Magnesium alloys with Ca, Zn and Ga were obtained by induction melting, followed by EB-PVD of Ag and Cu nanoparticles. Their elastic modulus measured using nanoindentation is in the range of elasticity of human cortical bone tissues up to 30 GPa. Two-phase structure and the uniformity of alloying elements distribution were confirmed by SEM/EDX, XRF and XRD. Adhesion strength of coatings exceeds the minimum required value of 22 MPa and their antimicrobial properties were also medically approved.

References

1. Zhao D., Witte F., Lu F., Wang J., Li J., Qin L. Current status on clinical applications of magnesium-based orthopaedic implants: A review from clinical translational perspective // Biomaterials. – 2016. – 112. – P. 287-302. https://doi.org/10.1016/j.biomaterials.2016.10.017
2. Bazhenov V., Koltygin A., Komissarov A., Li A., Bautin V., Khasenova R., Anishchenko A., Seferyan A., Komissarova J. Gallium-containing magnesium alloy for potential use as temporary implants inosteosynthesis // J. Magnes. Alloy. –2020. – 8. – P.352–363. https://doi.org/10.1016/j.jma.2020.02.009
3. Gonzalez J., Qing Hou R., Nidadavolu E., Willumeit-Römer R., Feyerabend F. Magnesium degradation under physiological conditions – Best practice // Bioact. Mater. – 2018. – 3. – P.174–185. https://doi.org/10.1016/j.bioactmat.2018.01.003
4. Menze R., Wittchow E. In vitro and in vivo evaluation of a novel bioresorbable magnesium scaffold with different surface modifications // J. Biomed. Mater. Res. B Appl. Biomater. – 2021. – 109. – P.1292–1302. https://doi.org/10.1016/j.biomaterials.2019.119414
5. Khokhlova J., Khokhlov M. 3d-visualization of magnesium strengthening mechanisms for a description of experimentally obtained data of alloying effect in Mg-Ga system // J. Magnes. Alloy. – 2020. – 8. –P.546–551. https://doi.org/10.1016/j.jma.2020.02.004
6. Khokhlova J., Khokhlov M., Synyuk V. Magnesium alloy AZ63A reinforcement by alloying with gallium and using high-disperse ZrO₂ particles // Magnes. Alloy. – 2016. – 4. – P.265–269. https://doi.org/10.1016/j.jma.2016.10.001
7. Gornostai O., Khokhlov M., Stelmakh Y., Khohlova J., Maksymchuk I. and Kharchenko Y., “Increasing the Productivity of EBPVD Process for Obtaining of Ag and Cu Antimicrobial Nanocoating on Mg-Based Alloy Implants in Osteosynthesis,” // 2024 IEEE 14th International Conference Nanomaterials: Applications & Properties (NAP), Riga, Latvia. – 2024. – P.1–4.