Rokkala, U.Patil, A.Bontha, S.Ramesh, M.R.Balla, V.K.Srinivasan, A.2026-02-032025Journal of Materials Engineering and Performance, 2025, 34, 21, pp. 25273-2528310599495https://doi.org/10.1007/s11665-025-11054-3https://idr.nitk.ac.in/handle/123456789/20022Equal channel angular pressing (ECAP) was used on the Mg-Zn-Gd alloy in this study to improve its corrosion and mechanical properties. Microstructural and phase analysis reveal that, after ECAP, a substantial grain refinement occurred, and secondary phases were observed. The grain size of the as-cast (AC) sample is reduced from 20 ± 1 to 0.88 ± 0.6 µm, attributed to dynamic recrystallization. The mechanical properties of the ECAP sample were significantly improved when compared to the AC sample. An improvement in the microhardness (43%), ultimate tensile strength (73%), yield strength (76%), and ductility (50%) were observed for the ECAP sample. A decrease in the corrosion rate was observed for ECAP sample (9 ± 1 mm/year) compared to the AC (16 ± 2 mm/year) sample. The grain refinement and crystallographic orientation of the ECAP samples contributed to the enhancement of corrosion resistance. © ASM International 2025.Corrosion rateCorrosion resistanceCorrosion resistant alloysCorrosive effectsDynamic recrystallizationEqual channel angular pressingGadolinium alloysGrain size and shapeMagnesium alloysTensile strengthZinc alloysZirconium alloysAs-castChannel angular pressingEqual channel angularGrains refinementMechanicalMechanical and corrosion propertiesMg-zn-gdMg-Zn-Gd alloyMicro-structuralPropertyGrain refinement