0560305 - FZÚ 2023 RIV CH eng J - Článek v odborném periodiku
Nečas, D. - Marek, I. - Pinc, Jan - Vojtěch, D. - Kubásek, J.
Advanced zinc-magnesium alloys prepared by mechanical alloying and spark plasma sintering.
Materials. Roč. 15, č. 15 (2022), č. článku 5272. ISSN 1996-1944. E-ISSN 1996-1944
Institucionální podpora: RVO:68378271
Klíčová slova: zinc * magnesium * mechanical alloying * powder metallurgy * mechanical properties
Obor OECD: Materials engineering
Impakt faktor: 3.4, rok: 2022
Způsob publikování: Open access

inc and its alloys are considered as promising materials for the preparation of biodegradable medical devices (stents and bone fixation screws) due to their enhanced biocompatibility. These materials must achieve an ideal combination of mechanical and corrosion properties that can be influenced by alloying or thermomechanical processes. This paper presents the effects of different mechanical alloying (MA) parameters on the composition of Zn-1Mg powder. At the same time, this study describes the influence of preparation by MA on Zn-6Mg and Zn-16Mg alloys. The selected powders were compacted by the spark plasma sintering (SPS) method. Subsequently, their microstructures were studied and their mechanical properties were tested. The overall process led to a significant grain refinement (629 ± 274 nm for Zn-1Mg) and the formation of new intermetallic phases (Mg2Zn11, MgZn2). The compressive properties of the sintered samples were mainly related to the concentration of the alloying elements, where an increase in concentration led to an improvement in strength but a deterioration in ductility. According to the obtained results, the best properties were obtained for the Zn-1Mg alloy.
Trvalý link: https://hdl.handle.net/11104/0336630