Related Experiment Video
Updated: Nov 27, 2025

Determining the Mechanical Strength of Ultra-Fine-Grained Metals
Published on: November 22, 2021
Small-Scale Plastic Deformation of Nanocrystalline High Entropy Alloy
Sanghita Mridha1, Mageshwari Komarasamy1, Sanjit Bhowmick2
1Department of Materials Science and Engineering, University of North Texas, Denton, TX 76203, USA.
Abstract:
High entropy alloys (HEAs) have attracted widespread interest due to their unique properties at many different length-scales. Here, we report the fabrication of nanocrystalline (NC) Al0.1CoCrFeNi high entropy alloy and subsequent small-scale plastic deformation behavior via nano-pillar compression tests. Exceptional strength was realized for the NC HEA compared to pure Ni of similar grain sizes. Grain boundary mediated deformation mechanisms led to high strain rate sensitivity of flow stress in the nanocrystalline HEA.
Related Concept Videos
Plastic Behavior
Stress-Strain Diagram - Ductile Materials
Plastic Deformations
Plastic Deformations
Plasticity
Temperature Dependent Deformation

