Shear of a Cu bicrystal

/images/bicrystal.jpg — The strained bicrystal after deformation via three different paths; top row colored by crystal, bottom row by distance moved from the initial positions.

Work with Doug Spearot in David McDowell’s group at Georgia Tech. A tilt bicrystal interface is formed by joining two Cu crystals and sheared via different deformation paths to study the defect formation and material response.

The images show the resulting strained system after deformation via three different paths. The top images color the atoms in each crystal in two shades of gray; the bottom images color atoms by the distance they moved from their initial positions.

Related publications

Effect of Deformation Path Sequence on the Behavior of Nanoscale Copper Bicrystal Interfaces, D. E. Spearot, K. I. Jacob, D. L. McDowell, and S. J. Plimpton, J. Eng. Mater. Technol. 127, 374 (2005). doi:10.1115/1.1867983