The Influence of Casting Technology on the Mechanical Properties and Microstructure of the WE43 Alloy for Medical Applications
DOI:
https://doi.org/10.24425/afe.2026.157998Abstract
Melting and casting technologies were developed for the aluminum-free magnesium alloy WE43, which is a promising candidate for biomedical applications due to its high biocompatibility. The alloy was melted in a steel crucible under a protective high-purity argon atmosphere at approximately 710°C to prevent oxidation. To evaluate the influence of the casting method on the final properties of the material, samples were prepared using three different technologies: from ingots, from castings produced by gravity casting into a steel mold, and from components obtained by high-pressure die-casting using a horizontal cold-chamber machine. The prepared samples were subjected to chemical composition analysis, non-destructive testing, mechanical characterization (hardness and tensile strength), and detailed microstructural evaluation using optical and electron microscopy. The results demonstrated that the alloy exhibited tensile strengths in the range of 100–200 MPa and porosity between 1.0–2.6%, while the microstructure was refined as a result of the applied casting techniques. The aim of this study was to identify the optimal production route to ensure the alloy's highest possible quality and performance of the alloy for biomedical use. Based on a comparative analysis of all the test results, the most suitable form and processing conditions of the WE43 alloy were determined for further development as the matrix material in an innovative, biodegradable magnesium-based biomaterial.
References
[1] Ghodrati H. (2025). A narrative review of recent developments in osseointegration and anti-corrosion of titanium dental implants with nano surface. Bone Reports. 25, 101846, 1-12. DOI:10.1016/j.bonr.2025.101846.
[2] Wu T., Li H. & Chen W.-Y. (2025). Mechanisms and targeted treatments of cobalt-encephalopathy from cobalt-chromium orthopedic implants. Neuroscience. 584, 32-47. DOI:10.1016/j.neuroscience.2025.08.008.
[3] Nouri, A., & Wen, C. (2021). Stainless steels in orthopaedics. In M. Niinomi, M. Nakai, & T. Narushima (Eds.), Structural biomaterials: Properties, characteristics and selection (pp. 67–101). Elsevier.
[4] Li, H., Zheng, Y.F. & Qin, L. (2014). Progress of biodegradable metals. Progress in Natural Science: Materials International. 24(5), 414-422. https://doi.org/10.1016/j.pnsc.2014.08.014.
[5] Qin, Y., Wen, P., Guo, H., Xia, D., Zheng, Y., Jauer, L., Poprawe, R., Voshage, M. & Schleifenbaum, J. H. (2019). Additive manufacturing of biodegradable metals: current research status and future perspectives. Acta Biomaterialia. 98, 3-22. https://doi.org/10.1016/j.actbio.2019.04.046.
[6] Leda, H. (2012). Engineering materials in biomedical applications. Poznań, Wydawnictwo Politechniki Poznańskiej. (in Polish).
[7] Bai, L., Gong, C., Chen, X., Sun, Y., Zhang, J., Cai, L., Zhu, S. & Xie, S.Q. (2019). Additive manufacturing of customized metallic orthopedic implants: materials, structures and surface modifications. Metals. 9, 1004, 1-26. DOI:10.3390/met9091004.
[8] Rogala-Wielgus, D., Majkowska-Marzec, B., Zieliński, A., Bartmański, M., & Bartosewicz, B. (2021). Mechanical behavior of Bi-layer and dispersion coatings composed of several nanostructures on Ti13Nb13Zr alloy. Materials. 14(11), 2905, 1-19. DOI: 10.3390/ma14112905.
[9] Bartmański, M., Ronowska, A., Mania, S., Banach-Kopeć, A., & Kozłowska, J. (2024). Biological and antibacterial properties of chitosan-based coatings with AgNPs and CuNPs obtained on oxidized Ti13Zr13Nb titanium alloy. Materials Letters. 360(1), 135997. DOI: 10.1016/j.matlet.2024.135997.
[10] Maciej, A., et al. (2023). Microstructure and corrosion resistance of Ti and Ti-40Nb alloy modified by plasma electrolytic oxidation in tricalcium phosphate suspension. Electrochimica Acta. 468, 143185, 1-5. DOI:10.1016/j.electacta.2023.143185.
[11] Zhang, Y., Gao, M., Etim, I. P., Tan, L., & Yang, K. (2019). Optimising the torsional properties and corrosion resistance of biodegradable WE43 Mg alloy by ECAP and subsequent ageing. Materials Technology. 35(7), 402-410. DOI: 10.1080/10667857.2019.1688539.
[12] Torkian, A., Faraji, G., Pedram, S. (2019). Mechanical properties and In-vivo biodegradability of Mg-Zr-Y-Nd-La magnesium alloy produced by a combined severe plastic deformation. Rare Metals. 40(9), 651-662. DOI:10.1007/s12598-019-01353-9.
[13] Salandari-Rabori, A., et al. (2017). Microstructure and superior mechanical properties of a multi-axially forged WE magnesium alloy. Journal of Alloys and Compounds. 693,406-413. https://doi.org/10.1016/j.jallcom.2016.09.198.
[14] Rzychoń, T. & Kiełbus, A. (2007). Microstructure of WE43 casting magnesium alloy. Journal of Achievements in Materials and Manufacturing Engineering. 21(1), 31-34.
[15] Qiao, H., Lei, S., Cui, S., Li, X., Qin, X., & Wang, H. (2025). Research on thermoforming process of WE43 rare earth magnesium alloy plate. Discover Applied Sciences. 7(8), 800. https://doi.org/10.1007/s42452-025-07259-9.
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