|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Ultrafine Grained Materials IX
||Nanostructured Al and Cu Alloys with Superior Strength and Electrical Conductivity
||Maxim Yu. Murashkin, Ilchat Sabirov, Xavier Sauvage, Ruslan Z. Valiev
|On-Site Speaker (Planned)
||Maxim Yu. Murashkin
Mechanical strength and electrical conductivity are the most important properties of conducting metallic materials used in electrical engineering. Today, there is a growing need in this field for innovative conductor materials with improved properties. Meanwhile, the main issue is that high electrical conductivity and high strength are usually mutually exclusive due to physical nature of these properties. Alloying of pure metals results in significant increase of their mechanical strength, whereas electrical conductivity dramatically drops due to the scattering of electrons at solutes and precipitates. This report demonstrates that intelligent nanostructural design in Al, Cu and their alloys can improve combination of high mechanical strength with enhanced electrical conductivity through controlling the microstructure of such materials, of which grain size, morphology of second phases and their distribution, as well as dislocation structure are the most important parameters.