University of Manchester
Manchester · GB · publishing in AM since 2010
Synchrotron X-ray and neutron diffraction characterisation of residual stress in AM parts
Paul Withers is Regius Professor of Materials at the University of Manchester and founding Director of the Henry Royce Institute for Advanced Materials. He is internationally recognised for applying synchrotron X-ray diffraction and neutron diffraction at Diamond Light Source and ISIS Neutron Source to map three-dimensional residual stress fields in metal AM components — work that has directly informed distortion mitigation strategies for LPBF and DED. His group has pioneered operando (in-situ) diffraction during AM builds, capturing the evolution of stress state layer by layer as a component is built. Withers has published extensively on fatigue crack propagation in LPBF Ti-6Al-4V and IN718, demonstrating quantitative links between residual stress magnitude and fatigue life scatter. He chairs the Royal Society Research Committee and has been a principal investigator on EPSRC Future Manufacturing Hub and EU Horizon 2020 projects focused on AM qualification for aerospace.
Last reviewed: 2026-05-16 · Sources: 2
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