Figure 1.

Phase change hysteresis in the top (a) and bottom (b) parts of a Ti64 rod (error bars are smaller than symbol size, measurements during heating in red and cooling in blue). The ratio between the α-phase lattice parameters c^α/a^α as a function of the β-phase lattice parameter a^β. The lattice parameters were extracted by Rietveld refinement of neutron diffraction data obtained at heating–cooling cycle of the sample (c). The change normalizes full width at half maximum (FWHM) of the (1011) peak of α phase as a function of temperature (d).