ZnMg0.8Ca0.2 (wt%) biodegradable alloy - the influence of thermal treatment and extrusion on microstructural and mechanical characteristics

0532135 - FZÚ 2021 RIV US eng J - Journal Article
Čapek, Jaroslav - Kubásek, J. - Pinc, Jan - Maňák, Jan - Molnárová, Orsolya - Drahokoupil, Jan - Čavojský, M.
ZnMg0.8Ca0.2 (wt%) biodegradable alloy - the influence of thermal treatment and extrusion on microstructural and mechanical characteristics.
Materials Characterization. Roč. 162, Apr. (2020), s. 1-17, č. článku 110230. ISSN 1044-5803. E-ISSN 1873-4189
R&D Projects: GA MŠMT(CZ) EF16_019/0000760; GA ČR(CZ) GA18-06110S; GA MŠMT LM2018110
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : Zinc alloys * biodegradable materials * extrusion * texture * microstructure * mechanical properties
OECD category: Materials engineering
Impact factor: 4.342, year: 2020
Method of publishing: Limited access
https://doi.org/10.1016/j.matchar.2020.110230

In this study, the ZnMg0.8Ca0.2 (wt%) alloy was prepared and treated by annealing and extrusion at various conditions. The evolution of microstructure and mechanical properties during annealing and after extrusion was performed in detail. Both annealing and extrusion caused microstructural changes influencing mechanical properties. Annealing caused a homogenization of the microstructure and transformation of metastable phases. The extrusion caused a rearrangement of the intermetallic phases, a refinement and a texturing of the zinc matrix. Those lead to a significant strengthening and to an increase in the ductility, but also to mechanical anisotropy. In this paper, the influence of the processing on the microstructure and mechanical properties is discussed in detail based on the results obtained by various methods, such as scanning and transmission electron microscopy, electron backscattered diffraction, tensile and compressive mechanical testing and nanoindentation.
Permanent Link: http://hdl.handle.net/11104/0310731