Microstructural Evolution of Shear Localization in High-Speed Cutting of CoCrFeMnNi High-Entropy Alloy

Shear localization is one of the most important failure mechanisms subjected to high-strain-rate deformation and has significant effects on process, plastic deformation, catastrophic a material. was observed in serrated chips produced during high-speed cutting CoCrFeMnNi high-entropy alloy. Electron backscatter diffraction performed systematically investigate microstructural evolution shear banding. The elongation subdivision narrow grains were areas adjacent band. microstructure inside band found be composed equiaxed ultrafine grains. results reveal that grain dynamic recrystallization might have roles bands. These offer key insights into our understanding machining behavior for high entropy alloys.