Naik, G.M.Anjan, B.N.Narendranath, S.S Satheesh Kumar, S.Preetham Kumar, G.V.2026-02-052019Materials Research Express, 2019, 6, 9, pp. -https://doi.org/10.1088/2053-1591/ab2ddfhttps://idr.nitk.ac.in/handle/123456789/24737Establishing the novel microstructure is an effective method to accelerate the applications of magnesium and its alloys. In this work, an Mg-8%Al-0.5%Zn alloy (AZ80 Mg) with ultra-fine-grain (UFG) size of ?1.29 ?m was achieved by the combined processes of multi-directional forging (MDF) and equal channel angular pressing (ECAP). The achieved ultra-fine grain structure made the Mg alloy, owing to inclusive performance as the structural material. The AZ80 Mg alloy with MDF 6 pass followed by two pass ECAP has superior mechanical properties such as ultimate tensile strength (UTS) of 352 MPa and elongation of 11% when compared to as-received Mg alloy. Also, an unprocessed Mg alloy showed the corrosion rate of a 13.28 mm y?1, the corrosion rate of processed Mg alloy could be further decelerated through a change of microstructure obtained from combined processes of MDF and ECAP. This study outstandingly obtained a 94% reduction of corrosion rate after MDF-3P followed by an ECAP-2P (0.77 mm y?1) process compared to as-received Mg alloy. © 2019 IOP Publishing Ltd.Aluminum corrosionCorrosion rateEqual channel angular pressingForgingsGrain size and shapeMagnesium alloysTensile strengthZinc alloysAz80Channel angular pressingEqual channel angularGrains refinementMagnesium and its alloysMg alloyMultidirectional forgingPropertyUltra fine grainZn alloysGrain refinement