63796 2024 eng 1341 1351 3 48 article Wiley 1 -- -- -- The present work shows an approach to monitor the evolution of the dislocation arrangement of a metallic material caused by cyclic plastic strain using white X-ray radiation in combination with an energy-dispersive detector. The method is demonstrated by single-shot experiments performed on polycrystalline nickel and α-brass, representing the pure wavy and the pure planar dislocation slip behavior. To correlate the resulting diffraction patterns with various dislocation arrangements of both metals, fatigue tests were carried out up to certain numbers of cycles and at predetermined plastic strain amplitudes. The differences in dislocation microstructure and internal stress distributions give rise to an appreciable change in the peak shape of Laue reflections, leading to unique characteristics in the respective diffraction patterns. Nickel reflections are elongated due to the high amount of cell structures leading to bending and misorientation of the lattice, whereas the present stacking faults in α-brass result in powder-like diffraction. Fatigue & Fracture of Engineering Materials & Structures 10.1111/ffe.14535 1460-2695 urn:nbn:de:kobv:b43-637964 publish 28.07.2025 false true Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International Carolin Leidigkeit Mohammad Shokr Amir Tosson Cafer Tufan Cakir Martin Radtke Ullrich Pietsch Hans-Jürgen Christ eng uncontrolled Slip behavior eng uncontrolled Energy-Dispersive eng uncontrolled Laue Diffraction eng uncontrolled Dislocation Analytische Chemie 6 Materialchemie 6.3 Strukturanalytik Chemie und Prozesstechnik Chemische Charakterisierung und Spurenanalytik Verlagsliteratur Datei für die Öffentlichkeit verfügbar ("Open Access") Wissenschaftliche Artikel der BAM Bundesanstalt für Materialforschung und -prüfung (BAM) https://opus4.kobv.de/opus4-bam/files/63796/UsingEnergyDispersiveLaueDiffractiontoStudyDislocation.pdf