Time of Flight Neutron Diffraction: it allows to measure selected areas of the samples – ranging in size from a few mm to a few cm – and to quantitatively determine the concentration of the crystalline phases in the investigated volume. Furthermore, by studying the shape and relative intensity of the diffraction peaks in the metal phases, it is possible to obtain indirectly information on the grain size, on the presence and density of flaw and internal stress and on the cold working methods or on the direction of solidification