METALLIC SHAPED WIRE WITH A RECRYSTALLIZATION CUBE TEXTURE AND PROCESS FOR THE PRODUCTION THEREOF

摘要

The invention deals with the field of materials science and relates to a metallic shaped wire which is made of polycrystalline metals, has a recrystallization cube texture and can be used, for example, as a substrate for film superconductors in superconducting magnets. The invention is based on the object of specifying a metallic shaped wire, on the surface of which buffer layers and superconductor layers can grow in an oriented manner, and a relatively cost-effective process. The object is achieved by a shaped wire which has a recrystallization cube texture in the region of the surfaces oriented perpendicular to one another and/or over the cross section thereof, wherein the cube edges of the unit cells are oriented parallel to the longitudinal axis of the wire and perpendicular to the surfaces. The object is also achieved by a process in which a strip of polycrystalline face-centred cubic metal is processed by means of cold-drawing to form shaped wire, wherein the cold-drawing exclusively implements a reduction in the overall width of the starting strip used of ε_b,ges ≥ 80%, but the thickness of the strip product used is not substantially changed.