This study explores the mechanical characteristics of dual-phase herringbone high-entropy alloys through Molecular Dynamics simulations during the cutting process. Lamellar and herringbone pattern dual-phase workpieces are subjected to multi-directional cutting at varying depths; the behavior is observed in the distribution of shear strain, von Mises stress, temperature, and microstructure evolution with the plastic flow. The findings indicate that structural interfaces influence the uniform directional propagation of shear strain in FCC atoms, with the atomic force being less pronounced on the BCC layer surface but exhibiting high stability. Moreover, atom migration under force occurs concurrently within the FCC layer before gradually redirecting or dispersing in the BCC volume, contingent on the orientation of the structural interface. This results in diverse deformation behaviors in distinct structures and cutting directions.

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Mechanical Properties of Dual-Phase Eutectic High-Entropy Alloys Under Nano-cutting

  • Duy-Khanh Nguyen,
  • Te-Hua Fang,
  • Ching-Chien Huang

摘要

This study explores the mechanical characteristics of dual-phase herringbone high-entropy alloys through Molecular Dynamics simulations during the cutting process. Lamellar and herringbone pattern dual-phase workpieces are subjected to multi-directional cutting at varying depths; the behavior is observed in the distribution of shear strain, von Mises stress, temperature, and microstructure evolution with the plastic flow. The findings indicate that structural interfaces influence the uniform directional propagation of shear strain in FCC atoms, with the atomic force being less pronounced on the BCC layer surface but exhibiting high stability. Moreover, atom migration under force occurs concurrently within the FCC layer before gradually redirecting or dispersing in the BCC volume, contingent on the orientation of the structural interface. This results in diverse deformation behaviors in distinct structures and cutting directions.