The Development of Texture in Copper and Copper‐Zinc Alloys

Abstract

The crystallite orientation distribution function has been determined for cold-rolled copper, copper-10 per cent zinc and copper-30 per cent zinc (-brass) at cold reductions of 0, 20, 40, 60, 80, 90 and 95 per cent. The copper texture exhibits a steady development and contains a tube of orientations between limits which have previously been shown to be stable during multiple slip processes ({110}(112) to-{44 11}(11 11 8)). The textures of the copper-zinc alloys both show a similar initial development to that of copper but a transition occurs above a reduction of about 40 per cent. This indicated that an additional deformation mode had become active. The features of the transition are consistent with those expected if the additional deformation mode were mechanical twinning. The development of the basic texture (pure-metal type) is in agreement with predictions based on the assumption of multiple slip conditions incorporating a considerable amount of cross-slip.

Texture evolution via combined slip and deformation twinning in rolled silver–copper cast eutectic nanocomposite

“…Alternatively, fine twins that are too small to be detected by a bulk measurement can influence texture indirectly via a barrier effect (also called latent hardening effect), in which twin boundaries act as barriers to slip promoting slip parallel and hindering slip non-parallel to the twin boundary. These two distinct twin-related effects have been tested in one form or another for single-phase metals (Kallend and Davies, 1972;Van Houtte, 1978;Myagchilov and Dawson, 1999;Lebensohn et al, 2007) and they are repeated here for the Cu-Ag composite. We will also consider cases that do not include twinning but involve alterations in slip mode, from {1 1 1}h1 1 0i slip to a predominance of {1 1 1}h1 1 2i partial slip, or in slip patterns (confined layer slip).…”

Microstructure and texture of cold-rolled Cu-10Zn brass

“…-type shear band traversing lightly twinned area, 71% reduction: longitudinal section, 1 J,lm marker parallel to trace of rolling surface others22 and are not reproduced here. At low strains (39% reduction) the textures of both materials were similar and essentially identical to that observed in pure copper at the same strain.…”

Ultrasonic characterization of the effect of cold work and grain size in copper and 68:32 brass sheets

“…The types of annealing and rolling texture developed in face-centred cubic (fcc) copper and 68:32 brass sheets are well known and have been investigated by many researchers [11][12][13]. Sheet textures are usually described by "ideal orientations", a simplified means of an approximate description of the texture.…”