Atomic-Scale Insights into the Deformation Mechanism of the Microstructures in Precipitation-Strengthening Alloys.

ABSTRACT: Clarifying the deformation behaviors of microstructures could greatly help us understand the precipitation-strengthening mechanism in alloys. However, it is still a formidable challenge to study the slow plastic deformation of alloys at the atomic scale. In this work, the phase-field crystal method was used to investigate the interactions between precipitates, grain boundary, and dislocation during the deformation processes at different degrees of lattice misfits and strain rates. The results demonstrate that the pinning effect of precipitates becomes increasingly strong with the increase of lattice misfit at relatively slow deformation with a strain rate of 10^-4. The cut regimen prevails under the interaction between coherent precipitates and dislocations. In the case of a larg

SUBMITTER: Wei C 

PROVIDER: S-EPMC10004733 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature