Publications by authors named "Shyam Swaroop Katnagallu"
Nat Commun
September 2022
Article Synopsis
- The push for high-strength metals involves reducing grain size, but continuously doing so is tough and can lead to complications like the inverse Hall-Petch effect.
- This study reveals that nanograined metals (NMs) with larger grain sizes (tens of nanometers) can achieve strength levels similar to or exceeding those of much finer NMs (around 5 nm) through a process called dislocation exhaustion.
- The research focuses on Fe-Ni NMs with enriched nickel at grain boundaries, showing that low-temperature structural transformations at these boundaries help reduce dislocations and enhance plasticity, paving the way for ultra-hardening effects and new strategies in material design.
