Significant lattice-distortion effect on compressive deformation in Mo-added CoCrFeNi-based high-entropy alloys

• Published in: Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 830; p. 142295
• Main Authors: Li, Jiaxiang, Yamanaka, Kenta, Chiba, Akihiko
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 07.01.2022; Elsevier BV
• Subjects: Back-stress hardening; Deformation effects; Deformation twinning; Dislocation mobility; Distortion; Domain rotation; Domains; Edge dislocations; Hardening rate; High entropy alloys; High-entropy alloy; Incompatibility; Lattice-distortion effect; Microstructure; Simple shear; Strain hardening; Stress concentration; Deformation twinning; Simple shear; Lattice-distortion effect; Domain rotation; High-entropy alloy; Back-stress hardening

Large lattice distortion is an essential feature of high-entropy alloys (HEAs). Herein, the deformation behaviors of three types of as-cast CoCrFeNi-based HEAs, which contained 0, 7.9, and 17.1 wt% Mo, were comparatively studied through compressive tests and microstructural observations. The intrins...