Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10155921 | Solid State Communications | 2018 | 18 Pages |
Abstract
Detailed process, critical energy, and critical shear stress of twin formation during hexagonal-close-packed (HCP) to face-centered-cubic (FCC) transition are proposed through first principles calculation. It reveals that a lower critical energy is needed for HCPâFCC basal transition with twin formation than that without twin. The relative magnitude of critical shear stresses is strongly correlated with c/a ratio of HCP metals, and fundamentally determines the appearance of HCPâFCC basal transition and phase-transition twin. The predicted results bring about reasonable explanations to two puzzling points regarding Mg and twin formation in the literature.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
J.X. Yang, L.C. Liu, H.R. Gong, M. Song,