Diffusivity in a Ni-Cr-Mo alloy was determined by using a composition-modulated structure of alternating Ni and Cr-Mo layers. The decay of the composition modulation was measured by using X-ray diffraction, and were analyzed in terms of the microscopic theory of diffusion.

Diffusion in Ni/CrMo Composition-Modulated Films. A.F.Jankowski, C.K.Saw: Scripta Materialia, 2004, 51[2], 119-24