On basal-prismatic twinning interfaces in magnesium

6th International Conference on Nanomaterials by Severe Plastic Deformation

材料科学;化学

Ostapovets, A.^1,2 ; Molnár, P.^2 ; Gröger, R.^1

Central European Institute of Technology-Institute of Physics of Materials (CEITEC-IPM), Academy of Sciences of the Czech Republic, Zizkova 22, 61662 Brno, Czech Republic^1

Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 18221 Prague, Czech Republic^2

关键词: Collective motions;    Hexagonal materials;    Molecular statics;    Prismatic interfaces;    Scientific community;    Twin boundaries;    Volume deformation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/63/1/012134/pdf
DOI  :  10.1088/1757-899X/63/1/012134

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The existence of basal-prismatic interfaces and their roles in twinning of hexagonal materials have recently attracted appreciable attention of scientific community. In this paper, we utilize molecular statics to investigate the formation of basal-prismatic facets in the {1012} twin boundary of magnesium. This interface is shown to be the consequence of a collective motion and interaction of twinning disconnections. By analyzing volume deformations caused by the migration of a single basal-prismatic interface, we show that the passage of this interface distorts the material equivalently to twinning shear.