Heterostructuring in L1 2 -strengthened high-entropy alloys: controlling continuous-to-discontinuous precipitation ratio to improve tensile properties
Abstract
While heterostructured materials leveraging both continuous and discontinuous precipitation have been developed to enhance the mechanical properties of L12-strengthened high-entropy alloys, the pivotal role of the hard-to-soft domain ratio remains unexplored. Here, we demonstrate that controlling the continuous-to-discontinuous precipitation (CP-to-DP) ratio effectively improves mechanical performance. Two specimens with different CP-to-DP ratios were systematically compared, and the specimen with a higher DP fraction exhibited superior yield strength and strain-hardening capability. These simultaneous improvements are attributed not only to the higher intrinsic hardness and strain-hardenability of DP region but also to hetero-deformation-induced strengthening, providing valuable insights into heterostructuring in L12-strengthened high-entropy alloys.
Fields of Study & Subjects
High Entropy Alloys Studies
Additive Manufacturing Materials and Processes
Magnesium Alloys: Properties and Applications
Publication details
- Journal / source
- Materials Research Letters
- Publisher
- Informa UK Limited
- Volume
- 14
- Issue
- 3
- Pages
- 322–330
- Publication date
- 12 January 2026
- Language
- EN