Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1499822 | Scripta Materialia | 2011 | 4 Pages |
Abstract
Copper disks containing columns of aligned nanotwins were subjected to high-pressure torsion (HPT) involving a half turn under a 3 GPa compressive stress. The overall shear strain of 21 at 1 mm from the center of rotation is concentrated at the surfaces, where the columns of twins have been transformed into a 3-D grain structure to a depth of about 5 μm. The remaining columns of twins were sheared in the direction of the shear stress with little rotation of the twin boundaries.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
C.J. Shute, B.D. Myers, Y. Liao, S.-Y. Li, A.M. Hodge, T.W. Barbee Jr., Y.T. Zhu, J.R. Weertman,