A pathway to achieving strength–ductility simultaneous improvement via solute segregation in gradient-structured Mg–Zn–Gd alloy
This study reports a novel dual gradient-structured (GS) Mg–2Zn–0.8Gd (wt.%) alloy fabricated via surface sliding friction and followed by heat treatment. Excellent grain boundary (GB) stability is achieved through the co-segregation of Zn and Gd atoms. The segregated gradient structure produces an excellent strengthen...