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Tuesday, June 8, 2004 - 4:30 PM
TAT2.6

Modeling of Texture Evolution During Subtransus Hot Working of Ti-6Al-4V with an Equiaxed Microstructure

M. Glavicic, R. Goetz, P. Fagin, UES, Inc., Wright-Patterson AFB, OH

The evolution of alpha- and beta-phase textures during subtransus hot working of Ti-6Al-4V was established using orientation-imaging microscopy and x-ray pole figure measurements. The effects of strain, strain rate, and temperature on the textures developed in isothermal compression specimens with an initial equiaxed-alpha microstructure were determined. The evolution of the textures of the two phases was modeled using a new version of the finite-element code DEFORMä that was coupled to the Los Alamos polycrystalline plasticity (LApp) code. The modeling methodology also included a simple approach for partitioning the effective strains accommodated by the individual alpha and beta phases