Research and development of magnesium alloy Mg-1%Zn-0.06%Ca for application in medicine

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Abstract

Biodegradable and biocompatible magnesium alloy materials show a promising future in medical applications and are currently the subject of active research. This paper presents the results of using combined thermomechanical processing by means of equal-channel angular pressing (ECAP) and subsequent extrusion, to produce the long-sized rods from magnesium alloy Mg-1%Zn-0.06%Ca with an ultrafine-grained structure and enhanced mechanical properties. The thermomechanical conditions have been determined through the use of computer modeling, with specific attention paid to intervals of strain rates, the degree of deformation, and the stress-strain state during the ECAP and extrusion processes. An experimental deformation was conducted, and the structure of the rods obtained through combined processing was investigated. The results demonstrate that the combined processing of the initial homogenized alloy, comprising ECAP and subsequent extrusion, enabled the formation of UFG structure with a grain size of approximately 1 µm and the creation of nano-sized particles, which led to a significant increase in the mechanical properties of the alloy in the rod-shaped samples intended for the manufacture of promising implants in maxillofacial surgery.

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About the authors

A. V. Botkin

Ufa University of Science and Technology

Email: ruslan.valiev@ugatu.su
ORCID iD: 0000-0001-9522-280X

Doct. of Sci. (Tech), Prof.

Russian Federation, Ufa

E. P. Volkova

Ufa University of Science and Technology

Email: ruslan.valiev@ugatu.su
ORCID iD: 0009-0004-7183-4077

Junior Researcher

Russian Federation, Ufa

G. D. Khudododova

Ufa University of Science and Technology

Email: ruslan.valiev@ugatu.su
ORCID iD: 0000-0002-1273-8518

Junior Researcher

Russian Federation, Ufa

O. B. Kulyasova

Ufa University of Science and Technology

Email: ruslan.valiev@ugatu.su
ORCID iD: 0000-0002-1761-336X

Cand. of Sci. (Tech), Docent

Russian Federation, Ufa

R. K. Islamgaliev

Ufa University of Science and Technology

Email: ruslan.valiev@ugatu.su
ORCID iD: 0000-0002-6234-7363

Doct. of Sci. (Physics and Mathematics), Prof.

Russian Federation, Ufa

R. Z. Valiev

Ufa University of Science and Technology

Author for correspondence.
Email: ruslan.valiev@ugatu.su
ORCID iD: 0000-0003-4340-4067

Doct. of Sci. (Physics and Mathematics), Prof., Director

Russian Federation, Ufa

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Supplementary files

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2. Fig.1. Distribution of the average normal stress in the billet and location schemes of the areas selected for analysis: a – at ECAP (fourth pass); b – at extrusion

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3. Fig.2. Distribution of the strain degree in the billet in the radial direction and location schemes of areas selected for analysis: a – at ECAP (fourth pass); b – at extrusion

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4. Fig.3. Distribution of strain rate in the billet in the radial direction and location schemes of areas for analysis: a – at ECAP (fourth pass); b – at extrusion

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5. Fig.4. Billets: a – initial after homogenization annealing; b – processed by ECAP and extrusion

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6. Fig.5. Structure of the Mg-1%Zn-0.06%Ca alloy samples after: homogenization annealing (a), ECAP+E (b-f); b – general view, SEM; c – dislocation structure in coarse grains, TEM; d – view of fine grains, TEM; e – nanoparticles, TEM; f – diffraction pattern from the nanoparticles

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Copyright (c) 2025 Botkin A.V., Volkova E.P., Khudododova G.D., Kulyasova O.B., Islamgaliev R.K., Valiev R.Z.