Title: Quantitative analysis of upset texture by crystal plasticity: finite element analysis

Authors: M.G. Lee

Addresses: Ferrous Alloys Research Group, Korea Institute of Materials Science, 531 Changwondaero, Changwon-city, Geongnam 641-010, Korea

Abstract: The effect of friction and strain state in upset deformation on deformed texture was investigated by crystal plasticity finite element method. It was observed that around 60% among random initial texture evolves to <111> within 10° of the upset axis(ND) by 80% upset near the quasi-uniaxial regions, while smearing of this texture components was predicted near the shear dominant regions. Texture intensity plot was introduced to quantitatively investigate the distributions of deformed textures. In addition, a simple Schmid analysis was also performed to explain the origin of strong ND||<111> and ND||<100> textures from randomly distributed grains.

Keywords: finite element method; FEM; crystal plasticity; line search algorithm; texture intensity; friction; strain; upset deformation; deformed texture.

DOI: 10.1504/IJMPT.2008.022515

International Journal of Materials and Product Technology, 2008 Vol.33 No.4, pp.361 - 375

Published online: 12 Jan 2009 *

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