The Development of Drawing Textures in Copper.

摘要

An X-ray examination of the development of textures during unidirectional drawing of pure copper at 77K and 196K is reported. Initially, a triplex , , texture is observed in which the texture forms rapidly and predominates at low strain. This texture is eventually transformed into a dual , texture, the rate of transformation being temperature dependent. Calculations of the X-ray absorption across the cross-section of a wire provide an explanation of observed asymmetries of diffractometer traces and pole figures. Such asymmetries are caused by unidirectional drawing conditions, which favour certain slip directions, creating a partial cylindrical texture. (Author)