Link Between Technological Parameters and Material Properties of EN 6082 Processed by ECAP-CONFORM and Precipitation Hardening

Influence of severe plastic deformation on aging kinetics of aluminium alloys was widely studied in last decade. Therefore serious amount of data is available for thermomechanical treatment of 6082 alloy by ECAP coupled with precipitation hardening. However, the industrial processing continuous methods, such as the ECAP‐CONFORM, are more perspective. Therefore the influence of processing parameters ‐ time and temperature in ECAP‐CONFORM device, and their links to aging parameters are explored in this paper. The alloy was naturally and artificially aged after sever plastic deformation in ECAP‐ CONFORM device. Two artificial aging temperatures were chosen: 130 °C and 160 °C. Influence of aging time on mechanical properties was studied and the results were compared with those of non‐deformed specimens. Temperature in ECAP‐ CONFORM chamber was measured directly and possible recovery and recrystallization temperatures were measured by dilatometry. Grain size and orientation were observed by EBSD‐SEM.