Effect of extrusion routes on thermal stability of pure titanium processed by equal channel angular pressing

Abstract

Abstract Thermal stability of samples deformed by equal channel angular pressing (ECAP) using route BC and B135 was studied. The new route B135 was developed by defining 135° clockwise rotation of samples in each pass. After ECAP processing, samples were heat treated at different temperatures for a period of time. The effect of the two different routes on thermal stability of the ECAPed samples was investigated in detail. Electron backscatter diffraction was used to detect the processes of both recovery and recrystallization during thermal processing. Also, the effect of extrusion route on thermal stability of the deformed samples was further investigated by microhardness measurements.