University of Manchester

The University of Manchester is one of Britain’s leading universities with over 40,000 students and 10,000 staff. The University of Manchester and the constituent former institutions combined have 25 Nobel Laureates among their past and present students and staff. In AMAZE, the project is led by the Lee Group/Manchester X-ray Imaging Facility, based at the Research Complex at Harwell (RCaH) and co-located with the UK’s Large Facilities: Diamond Light Source (for synchrotron x-ray imaging), ISIS Neutron source (for residual stress and phase transformation measurements) and the Central Laser Facilities.

The University of Manchester’s main activity in the AMAZE project focuses on the development and application of a variety of synchrotron and laboratory x-ray imaging techniques (ultra fast radiography, tomography, diffraction) to examine AM processes. This includes the performance of non-invasive characterisation studies on AM metallic powders and components to provide feedback on their manufacturing processes, while developing new algorithms to quantify the deviations in dimensions (holes, struts, etc.), defects size and surface roughness.

The University of Manchester also performed in situ mechanical testing to illustrate damage growth on AM lattice structures, including conventional lattice and auxetic structures. A key highlight of this work is the development of a unique AM process replicator to perform in situ laser-based AM with synchrotron x-ray radiography.

This unique facility allows us to reveal the thermophysical and hydrodynamic behaviour of the molten pool under laser irradiation. The results provide new insights into the underlying mechanisms of this behaviour and key ingredients for data validation and development of model simulations.