Stability of Crystallographic Orientations in Equal Channel Angular Extrusion of HCP materials: Application to Texture Analysis in Titanium

Sai Yi Li

doi:10.4028/www.scientific.net/MSF.561-565.1979

Paper Titles

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Modeling of Contact Pressure in Sheet Metal Forming
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Stability of Crystallographic Orientations in Equal Channel Angular Extrusion of HCP materials: Application to Texture Analysis in Titanium
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Atomic Simulations on the Grain Subdivision of a Crystalline Metal
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Numerical Modelling of Spray Formed Grain Size Evolution
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Development and Application of the Finite Element Analysis Program of the Stress-Based Forming Limit Criterion for Sheet Metal Forming
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Stability of Crystallographic Orientations in Equal Channel Angular Extrusion of HCP materials: Application to Texture Analysis in Titanium

Abstract:

A numerical analysis of orientation stability is conducted for equal channel angular extrusion (ECAE) of hexagonal close-packed (hcp) materials based on lattice rotations from rate-sensitive crystal plasticity simulations. The relatively stable orientations associated with five slip modes are identified and then applied to interpret the characteristics of texture evolution in ECAE-processed titanium. The results indicate that during ECAE deformation, the slip plane and slip direction tend to rotate respectively towards the macroscopic simple shear plane and shear direction.