Abstract The rapid development of high-speed rail requires copper contact wire that simultaneously possesses excellent electrical conductivity, thermal stability and mechanical properties. Unfortunately, these are generally mutually exclusive Here, we demonstrate directional optimization microstructure overcome the strength-conductivity tradeoff in wire. We use rotary swaging to prepare with a ...

Abstract Gum Metals are β-Ti alloys that present only non-toxic elements in their composition, low elastic modulus, good formability, and excellent biocompatibility. The composition of these needs to fulfill some electronic criteria typical properties. In addition, during processing, Metal must be significantly deformed, which can obtained by cold rolling or swaging. Over the last years, severa...