|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Friction Stir Welding and Processing IX
||High-speed FSW Aluminum Alloy 7075 Microstructure and Corrosion Properties
||Jingyi Zhang, Piyush Upadhyay, Yuri Hovanski, David P. Field
|On-Site Speaker (Planned)
Friction stir weld technique offers great industrial potential with advantages such as superior joint properties and low energy consumption rate. High welding speeds on the order of meters per minutes enable FSW process to be applied on high-volume production lines. This study is the first microstructural characterization of high-speed FSWed heat–treatable aluminum alloys butt joints. Micro-hardness measurement shows that the higher welding speed results in narrower HAZ with higher hardness values. The material flow is analyzed with a shear texture approach using EBSD data collected from the cross section of welds. The results show strong gradient throughout the nugget zone and the welds with higher welding speeds have shear directions flattened towards top (WD-TD) plane, giving less relative through thickness flow. This is associated with the fact that high traverse speed contributes to a larger in-plane component of material flow.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)