Microstructure and texture development during hot-compression of Ti5321

The microstructure and texture development of the metastable β‑titanium alloy Ti5321 during hot-compression were investigated by electron backscatter diffraction. Above the β-transus temperature, deformation is accompanied by continuous dynamic recrystallization leading to immediate steady state flow. The deformation below the β-transus temperature is significantly affected by α-precipitation. Dynamic globularization of the α-lamellae leads to flow softening. During hot-compression, parallel to the compression axis a 〈100〉 〈111〉 double fiber texture develops. With increasing temperature the intensity of 〈100〉 increases, while that of <111> decreases. At all temperatures <100> is dominant.