Abstract
Magnesium wrought alloys are of special interest for structural parts due to the possibility to obtain improved and more homogenous microstructure and mechanical properties compared to cast components. Currently, with decreasing prices of primary magnesium extrusion of magnesium becomes competitive to aluminium profiles and is important for upcoming research and development activities. In this study hydrostatic extrusion, as a quite rarely applied technique, is used for deformation of commercial magnesium alloys at 100°C which is significantly below temperature necessary for activation of new gliding systems. All experiments were carried out using typical industrial extrusion parameters like extrusion rate and extrusion ratio but with the objective to obtain extremely fine grained materials as received typically from ECAE processing. These experiments show that the processing of magnesium alloys is possible at temperature of 100°C. Limitations of this processing and the influence of process parameters on the microstructure and mechanical properties of extruded profiles will be discussed.
