|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Aluminum Alloys, Processing and Characterization
||Integrated Casting-extrusion of an AA6082 Aluminum Alloy
||Shohreh Khorsand, Yan Huang
|On-Site Speaker (Planned)
An integrated casting-extrusion is proposed as a novel method for producing profiles of light alloys at low cost and high efficiency. Such a process has multiple advantages, including use of solidification heat, removing the multiple steps in conventional processes and eliminating casting defects. Integrated cast-extrusion experiments have been carried out using an AA6082 aluminum alloy, under fixed casting conditions but variable extrusion temperatures. Experimental results revealed that deformation structure dominated in the as-cast-extruded state with a uniform microstructure and that, upon heat treatment, a uniform distribution of particulate AlFeMnSi and MnSi phases was obtained. EBSD measurements showed that, after T6-5h heat-treatment, a fine grain structure with an average grain size of 30 Ám and well developed high angle grain boundaries was successfully achieved. The hardness of the alloy reached to 116HV after 5h aging at 180C, which is comparable to that reported for the same alloy processed by conventional routines.
||Planned: Light Metals