Jegou, S.3; Christiansen, Thomas Lundin1; Klaus, M.4; Genzel, Ch.4; Somers, Marcel A. J.5
1 Department of Mechanical Engineering, Technical University of Denmark2 Materials and Surface Engineering, Department of Mechanical Engineering, Technical University of Denmark3 Technical University of Denmark4 Helmholtz–Zentrum Berlin für Materialien und Energie5 Centre for oil and gas – DTU, Center, Technical University of Denmark
A methodology is proposed combining the scattering vector method with energy dispersive diffraction for the non-destructive determination of stress- and composition-depth profiles. The advantage of the present method is a relatively short measurement time and avoidance of tedious sublayer removal; the disadvantage as compared to destructive methods is that depth profiles can only be obtained for depth shallower than half the layer thickness. The proposed method is applied to an expanded austenite layer on stainless steel and allows the separation of stress, composition and stacking fault density gradients.