Impact of a magnetic field on the annealing behavior of cold rolled titanium

The annealing behavior of cold rolled (78%) commercially pure titanium was investigated during a heat treatment at 530 °C in a magnetic field of 19 T. X-ray diffraction and electron backscatter diffraction measurements were utilized to characterize the crystallographic texture and the grain microstructure. The analysis revealed that the magnetic annealing promotes grain growth in the investigated material. This manifests itself in an accelerated development of typical “grain growth” texture components and the distinctly increased mean grain size after magnetic annealing compared to annealing at zero field. The observed phenomenon is attributed to an enhanced grain boundary mobility by the applied magnetic field.