Influence of Starting Textures on the Development of Texture and Microstructure during Large Strain Hot Rolling of Pure Magnesium

Talal Al-Samman; Günter Gottstein

doi:10.4028/www.scientific.net/SSP.105.201

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Influence of Starting Textures on the Development of Texture and Microstructure during Large Strain Hot Rolling of Pure Magnesium
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Influence of Starting Textures on the Development of Texture and Microstructure during Large Strain Hot Rolling of Pure Magnesium

Abstract:

The plastic behaviour of hexagonal metals such as magnesium is very anisotropic and substantially affected by crystallographic texture. In this work, samples of pure magnesium with different starting textures were hot rolled at 400°C in one rolling pass to different final thicknesses of 5%, 10%, 30%, 50%, 70%, 90%. The microstructure and macrotexture evolution were examined by optical microscopy (OM) and X-ray diffraction, respectively. Further, microtexture analysis was done by EBSD. Texture modelling with LAPP using an FC Taylor model, based on the expected active slip and twinning modes was performed. The results were compared with the measured textures.