Effect of Rotary Swaging on Mechanical and Operational Properties of Zn–1%Mg and Zn–1%Mg–0.1%Ca Alloys

• Published in: Metals (Basel ) 2023-08, Vol.13 (8), p.1386
• Main Authors: Martynenko, Natalia, Anisimova, Natalia, Rybalchenko, Georgy, Rybalchenko, Olga, Serebryany, Vladimir, Zheleznyi, Mark, Shinkareva, Maria, Gorbenko, Artem, Temralieva, Diana, Lukyanova, Elena, Sannikov, Andrey, Koltygin, Andrey, Kiselevskiy, Mikhail, Yusupov, Vladimir, Dobatkin, Sergey
• Format: Article
• Language: English
• Subjects: Alloys; Analysis; Annealing; Biocompatibility; Biodegradation; Blood cells; Bones; Calcium; Corrosion; Corrosion and anti-corrosives; Corrosion resistance; Deformation; Degradation; Ductility; Electrodes; Fractures; Grain size; Injuries; Intermetallic compounds; Intermetallic phases; Magnesium base alloys; Mechanical properties; Medical equipment; Microstructure; Phase composition; Radiation; Recrystallization; Rotary swaging; rotary swaging (RS); Specialty metals industry; Swaging; Temperature; Tensile strength; Transplants & implants; Zinc; zinc alloys
• ISSN: 2075-4701; 2075-4701
• DOI: 10.3390/met13081386

A study of microstructure, phase composition, mechanical properties, corrosion processes, and biocompatibility in vitro of the Zn–1%Mg and Zn–1%Mg–0.1%Ca alloys in an annealed state and after rotary swaging (RS) is presented. Partially recrystallized microstructure is formed in the studied alloys after RS at 200 °C. RS reduces the mass fraction of intermetallic phases in comparison with annealed states of the alloys. RS at 200 °C increases the strength of the Zn–1%Mg and Zn–1%Mg–0.1%Ca alloys up to 248 ± 9 and 249 ± 9 with the growth of ductility up to 10.3 ± 3% and 14.2 ± 0.9%, respectively. The structure after RS at 200 °C does not lead to a change in the corrosion resistance of the studied alloys. However, an increase in the incubation period of the alloys in a growth medium slows down the degradation process due to the formation of a film consisting of degradation products. Rotary swaging does not impair the biocompatibility of the Zn–1%Mg and Zn–1%Mg alloys, maintaining the viability and integrity of blood cells, preventing hemolysis, and ensuring the adhesion and proliferation of osteogenic cells on the surface of samples.