High-resolution X-ray diffraction investigation on the evolution of the substructure of individual austenite grains in TRIP steels during tensile deformation

For the first time, a high-resolution far-field detector has been used to study the initial and evolving structure of individual metastable austenite grains during uniaxial tensile deformation of a transformation-induced plasticity (TRIP) steel sample. The orientation, position and lattice parameters of the selected grains were reconstructed from additional measurements with a lower-resolution medium-field detector.

On the calibration of high-energy X-ray diffraction setups. I. Assessing tilt and spatial distortion of the area detector

A high-precision method for tilt calibration of area detectors is presented. The procedure takes into account continuously varying spatial distortions.