Breaking the strength limit: Negative-excess-energy interfaces push Ni alloys toward theoretical strength
Abstract
The pursuit of metallic materials approaching their theoretical strength has long been hindered by interface instability at the nanoscale. A recent study by Li et al., writing in Science , reveals that introducing coherent interfaces with negative excess energy in Ni–Mo alloys enables sustained strengthening down to sub-nanometer scales. These energetically favorable interfaces achieve near-theoretical strength (∼5 GPa), marking a new paradigm in atomic-scale interface engineering for ultrahigh-performance metals.
Fields of Study & Subjects
Microstructure and mechanical properties
High Entropy Alloys Studies
Microstructure and Mechanical Properties of Steels
Publication details
- Journal / source
- Fundamental Research
- Volume
- 6
- Issue
- 3
- Pages
- 1756–1758
- Publication date
- 19 February 2026
- Language
- EN