|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Aluminum Alloys, Processing and Characterization
||Optimization of Electrical Conductivity and Strength by Grain Refinement in Al-Mg-Si Alloys
||Xavier Sauvage, Yana Nasedkina, Nariman Enikeev, Elena Bobruk, Maxim Murashkin, Ruslan Valiev
|On-Site Speaker (Planned)
The combination of strength and electrical conductivity of an Al-Mg-Si alloy (6101) was optimized through grain size refinement by severe plastic deformation and nucleation of nanoscaled precipitates. Various microstructures were obtained by varying severe plastic deformation conditions and post-processing precipitation treatments. Microstructural features were quantitatively characterized by transmission electron microscopy and atom probe tomography. This report will focus on deformation induced precipitation, grain boundary segregations and on the concomitant grain growth and precipitation occurring during aging treatments. Based on these observations, physical models were used to account for both the mechanical strength and the electrical conductivity. Finally, the range of properties achievable in such ultrafine grained Al-Mg-Si alloys will be discussed.
||Planned: Light Metals Volume