Processing Effects on the Formability of Magnesium Alloy Sheets

Jan Bohlen, Guadalupe Cano, Daria Drozdenko, Patrik Dobron, Karl Kainer, Sven Gall, Sören Müller, Dietmar Letzig
2018 Metals  
As a generalized semi-finished product, the use of magnesium sheets requires addressing two major aspects of their processing: their microstructure and texture control, which are both essential for the forming behavior of such sheets during their forming to parts. Further, the processing of such sheets is complex, and therefore expensive, and requires simplification. In this work, magnesium alloys AZ31, ZE10, and ME21 are investigated in the form of conventionally rolled sheets, as well as in
more » ... e form of extruded sheets. Their microstructural and textural development are correlated to their mechanical and forming properties. During extrusion, strong textures develop that hinder stretch-forming operations, even in rare earth-containing alloys. Chemical composition and process parameters have a significant impact on the texture development, and enable the design of sheet materials with weak textures and potentially enhanced formability.
doi:10.3390/met8020147 fatcat:paltmf2lb5b47pp33f3eefmzzy