Cu and Ag single crystals with different orientations show great similarities in their cyclic deformation behavior, including cyclic stress–strain curves and dislocation patterns. Based on a large amount of experimental results, it was found that single-slip, conjugate double-slip and [011] multiple-slip oriented Cu and Ag single crystals exhibit obvious plateau behavior in their cyclic stress–strain curves and the corresponding dislocation patterns were composed of typical two-phase structure including persistent slip bands and veins. However, the critical and coplanar double-slip oriented Cu and Ag single crystals do not exhibit clear plateau region in their cyclic stress–strain curves and labyrinth and cell structures were typical due to the different dislocation reactions. The relationship between the cyclic stress–strain curves and the saturation dislocation patterns was discussed and summarized.

Effect of Orientation on Cyclic Stress–Strain Curves and Dislocation Patterns of Ag and Cu Single Crystals. P.Li, Z.F.Zhang, S.X.Li, Z.G.Wang: Materials Science and Engineering A, 2010, 527[9], 2305-12