Elemental redistribution in a nanocrystalline Ni-Fe alloy induced by high-pressure torsion

- Elemental distribution of a nc Ni-Fe alloy before and after high-pressure torsion.
- The supersaturated Ni-Fe solid solution was stable under HPT.
- C and S atoms further segregated to the remaining GBs during grain growth.
- GB diffusion and the motion of defects facilitate the elemental redistribution.