Cold Drawing of Commercially Pure Titanium and Its Effect on Microstructure and Texture Evolution

In the present study, the microstructure and texture evolution during cold drawing of commercially pure (CP) titanium wires have been investigated. The roles of initial grain sizes, reduction percentages and strain-rates of deformation were also examined. Both tensile and compressive twins were observed in the samples after cold drawing, and the twins were found to be insignificant at higher reduction percentages and at higher strain-rates of deformation. The samples with larger grain sizes had lower volume fraction of twins. Further, the twins were characterized as Schmid and non-Schmid type, and they had similar effect on the microstructural developments in the samples. The textures in the samples after cold drawing were observed to have dominant basal and prismatic orientations. However, the intensity of these texture components got increased for samples with larger grain sizes. Further, the effect of initial grain sizes and strain-rates of deformation were found to be insignificant on the texture evolution during cold drawing.