Deformation behavior of single-crystal magnesium during Nano-ECAP simulation.

ABSTRACT: Molecular dynamics was applied to simulate ECAP of single-crystal magnesium at room temperature. Four samples with different orientations were processed, and the grain structure, grain fragmentation, slip systems, strain, and twin formation were analyzed. The initial orientation played a substantial role in the strain and deformation experienced by the samples during both stages of deformation. Compressions initially occurred before extrusion, and simple shear occurred in the deformation zone during extrusion. The samples nucleated a {101¯2} tension twin during compression, and the tension twin grew to immediately cover the entire sample, effectively changing the orientation of the sample. Additionally, stacking faults acted as a precursor for the {101¯2} tension twin. The strain was stron

SUBMITTER: Altoyuri AH 

PROVIDER: S-EPMC9720040 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature