RAMT

Authors

E.D. Abdrakhmanova ^1, ² , E.D. Khafizova ¹ , M.V. Polenok ¹ , R.K. Islamgaliev ¹ , Zhen Li ² , Li Li ² , Yingru Liang ² , Meng Zhang ²

¹ Ufa University of Science and Technology, Zaki Validi Str., 32, Ufa, 450076, Russia

² Harbin Engineering University, Nantong Str, No. 145, Harbin Heilongjiang, 150001, China

10.17586/2687-0568-2025-7-2-71-78

Rev. Adv. Mater. Technol., 2025, vol. 7, no. 2, pp. 71–78

Abstract

Interest in biodegradable materials for temporary implants based on zinc alloys has been growing annually. The Zn-Fe-Mg alloys are of special interest, as each of its constituent elements is independently considered as biodegradable metallic material. This study presents a comprehensive investigation of the Zn-1%Fe-1%Mg and Zn-1%Fe-5%Mg alloys subjected to high-pressure torsion. A comparative analysis was conducted on the microstructure of the alloys in both as-cast and deformed states, highlighting differences in their phase composition, strength and cytotoxicity. When the magnesium content exceeds 3 wt.%, an additional phase (MgZn2) precipitates alongside the existing Mg2Zn11 phase. Deformation processing of the Zn-1%Fe-1%Mg alloy effectively reduces its brittleness and promotes a more homogeneous distribution of the Mg2Zn11 eutectic throughout the sample volume. In contrast, the Zn-1%Fe-5%Mg alloy retains excessive brittleness even after deformation. The addition of magnesium was found also to accelerate corrosion rates. Nevertheless, the strength, corrosion, and cytotoxicity properties of the Zn-1%Fe-1%Mg alloy meet the requirements for biodegradable materials.

Keywords

Zn; Biodegradable materials; Corrosion; High pressure torsion; Cytotoxicity

Foundings

Ufa University of Science and Technology: PRIORITY-2030

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Effect of Mg Content on the Structure, Properties and Cytotoxicity of Biodegradable Zn-Fe-Mg Alloys

Authors

Abstract

Keywords

Foundings