CC BY 4.0 UnportedKosiba, KonradPrashanth, Konda GokuldossScudino, Sergio2021-03-152021-03-152021https://oa.tib.eu/renate/handle/123456789/6084https://doi.org/10.34657/5011The phase and microstructure formation as well as mechanical properties of the rapidly solidified Mg67Ag33 (at. %) alloy were investigated. Owing to kinetic constraints effective during rapid cooling, the formation of equilibrium phases is suppressed. Instead, the microstructure is mainly composed of oversaturated hexagonal closest packed Mg-based dendrites surrounded by a mixture of phases, as probed by X-ray diffraction, electron microscopy and energy dispersive X-ray spectroscopy. A possible non-equilibrium phase diagram is suggested. Mainly because of the fine-grained dendritic and interdendritic microstructure, the material shows appreciable mechanical properties, such as a compressive yield strength and Young’s modulus of 245 ± 5 MPa and 63 ± 2 GPa, respectively. Due to this low Young’s modulus, the Mg67Ag33 alloy has potential for usage as biomaterial and challenges ahead, such as biomechanical compatibility, biodegradability and antibacterial properties are outlined.enghttps://creativecommons.org/licenses/by/4.0/620Mg–Ag-based alloymetastable phase formationmicrostructuremechanical propertiesbiomaterialArticle