Bhat Panemangalore, D.B.Shabadi, R.Gupta, M.2026-02-052021Metals, 2021, 11, 3, pp. 1-16https://doi.org/10.3390/met11030519https://idr.nitk.ac.in/handle/123456789/23306In this study, the effect of calcium (Ca) and erbium (Er) on the microstructure, mechanical properties, and corrosion behavior of magnesium-zinc alloys is reported. The alloys were prepared using disintegrated melt deposition (DMD) technique using the alloying additions as Zn, Ca, and Mg-Er master alloys and followed by hot extrusion. Results show that alloying addition of Er has significantly reduced the grain sizes of Mg-Zn alloys and also when compared to pure magnesium base material. It also has substantially enhanced both the tensile and the compressive properties by favoring the formation of MgZn<inf>2</inf> type secondary phases that are uniformly distributed during hot-extrusion. The quaternary Mg-Zn-Ca-Er alloy exhibited the highest strength due to lower grain size and particle strengthening due to the influence of the rare earth addition Er. The observed elongation was a result of extensive twinning observed in the alloys. Also, the degradation rates have been substantially reduced as a result of alloying additions and it is attributed to the barrier effect caused by the secondary phases. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.CorrosionDisintegrated melt depositionMagnesiumMicrostructure