Investigation of Mechanical and Corrosion Properties of New Mg-Zn-Ga Amorphous Alloys for Biomedical Applications.

Autor:	Bazhenov VE; Casting Department, National University of Science and Technology 'MISiS', Leninskiy pr. 4, 119049 Moscow, Russia., Gorobinskiy MV; Casting Department, National University of Science and Technology 'MISiS', Leninskiy pr. 4, 119049 Moscow, Russia., Bazlov AI; Laboratory of Advanced Green Materials, National University of Science and Technology 'MISiS', Leninskiy pr. 4, 119049 Moscow, Russia., Bautin VA; Department of Metallurgy Steel, New Production Technologies and Protection of Metals, National University of Science and Technology 'MISiS', Leninskiy pr. 4, 119049 Moscow, Russia., Koltygin AV; Casting Department, National University of Science and Technology 'MISiS', Leninskiy pr. 4, 119049 Moscow, Russia., Komissarov AA; Laboratory of Hybrid Nanostructured Materials, National University of Science and Technology 'MISiS', Leninskiy pr. 4, 119049 Moscow, Russia.; Laboratory of Medical Bioresorption and Bioresistance, Russian University of Medicine, Dolgorukovskaya 4, 127473 Moscow, Russia., Ten DV; Laboratory of Hybrid Nanostructured Materials, National University of Science and Technology 'MISiS', Leninskiy pr. 4, 119049 Moscow, Russia., Li AV; Laboratory of Hybrid Nanostructured Materials, National University of Science and Technology 'MISiS', Leninskiy pr. 4, 119049 Moscow, Russia., Drobyshev AY; Laboratory of Medical Bioresorption and Bioresistance, Russian University of Medicine, Dolgorukovskaya 4, 127473 Moscow, Russia., Kang Y; High Temperature Thermo-Chemistry Laboratory, Seoul National University-Research Institute of Advanced Materials, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea., Jung IH; High Temperature Thermo-Chemistry Laboratory, Seoul National University-Research Institute of Advanced Materials, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea., Shin KS; Laboratory of Medical Bioresorption and Bioresistance, Russian University of Medicine, Dolgorukovskaya 4, 127473 Moscow, Russia.; Magnesium Technology Innovation Center, Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
Jazyk:	angličtina
Zdroj:	Journal of functional biomaterials [J Funct Biomater] 2024 Sep 20; Vol. 15 (9). Date of Electronic Publication: 2024 Sep 20.
DOI:	10.3390/jfb15090275
Abstrakt:	Magnesium alloys are considered as promising materials for use as biodegradable implants due to their biocompatibility and similarity to human bone properties. However, their high corrosion rate in bodily fluids limits their use. To address this issue, amorphization can be used to inhibit microgalvanic corrosion and increase corrosion resistance. The Mg-Zn-Ga metallic glass system was investigated in this study, which shows potential for improving the corrosion resistance of magnesium alloys for biodegradable implants. According to clinical tests, it has been demonstrated that Ga ions are effective in the regeneration of bone tissue. The microstructure, phase composition, and phase transition temperatures of sixteen Mg-Zn-Ga alloys were analyzed. In addition, a liquidus projection of the Mg-Zn-Ga system was constructed and validated through the thermodynamic calculations based on the CALPHAD-type database. Furthermore, amorphous ribbons were prepared by rapid solidification of the melt for prospective alloys. XRD and DSC analysis indicate that the alloys with the most potential possess an amorphous structure. The ribbons exhibit an ultimate tensile strength of up to 524 MPa and a low corrosion rate of 0.1-0.3 mm/year in Hanks' solution. Therefore, it appears that Mg-Zn-Ga metallic glass alloys could be suitable for biodegradable applications.
Databáze:	MEDLINE
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