Ultrafine-grained titanium was processed by severe plastic deformation (SPD). The SPD
was carried out by equal channel angular pressing (ECAP) at high temperature. The ECAPprocessed
sample was further deformed by conventional techniques such as radial forging and
drawing. The microstructure was characterized quantitatively by X-ray diffraction line profile
analysis and transmission electron microscopy after each step of deformation. The effect of
procesing routes on the mechanical behavior was also studied. It was found that the conventional
deformation processes after ECAP result in further increment in dislocation density and strength at
the expense of ductility.
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