Peculiarities of Structure and Texture of High-Strength Cu-Nb Composites

Abstract

The evolution of structure of high-strength heavily deformed Cu-Nb composites processed by two different methods (melt-and-deform and bundle-and-deform) is briefly reviewed based on the authors’ (with their coauthors) original studies and the available publications. Specific features of their texture are considered. In particular, it is demonstrated that the ribbon-like Nb filaments possess not only the sharp fiber texture but the limited texture with components characteristic of cold-drawn Nb. The semi-coherent and amorphous state of Cu/Nb interfaces is discussed. The thermal stability of single-core and multi-core wires is considered. The effect of Zr and Ti doping on the structure and mechanical properties is demonstrated.