ZnMg0.8Ca/Sr0.2 ternary alloys - the influence of the third element on material properties

0538604 - FZÚ 2021 RIV CZ eng C - Conference Paper (international conference)
Čapek, Jaroslav - Pinc, Jan - Kubásek, J. - Molnárová, Orsolya - Maňák, Jan - Drahokoupil, Jan
ZnMg0.8Ca/Sr0.2 ternary alloys - the influence of the third element on material properties.
Procedia Structural Integrity. Vol. 23. Brno: Elsevier, 2019 - (Pokluda, J.; Šandera, P.), s. 3-8. ISSN 2452-3216.
[9th International Conference on Materials Structure and Micromechanics of Fracture (MSFM 2019). Brno (CZ), 26.06.2019-28.06.2019]
R&D Projects: GA MŠMT(CZ) EF16_019/0000760; GA ČR(CZ) GA18-06110S
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : biodegradable zinc alloys * mechanical properties * microstructure
OECD category: Materials engineering

Zinc-based materials alloyed with the elements of the 2nd group of the periodic table have been studied as potential materials for the fabrication of various biodegradable implants. In this study, we prepared two ternary alloys: ZnMg0.8Ca0.2 (wt.%) and ZnMg0.8Sr0.2. The microstructure of both ternary alloys was similar, the main difference was in the size and morphology of the Ca/SrZn13 phase. The SrZn13 phase formed fine particles with a submicron size and had more significant hardening effect in the as-cast state compared to the CaZn13 phase. The annealing led to a transformation of the eutectic structure into the “massive” Mg2Zn11 phase which caused a significant increase of both hardness and compressive yield stress. In the annealed states, comparable hardness was observed for both alloys and higher compressive yield strength for the Ca-containing alloy.
Permanent Link: http://hdl.handle.net/11104/0316379