Laser assisted direct metal deposition (DMD) setup, provides an opportunity to create solid, porous and composite structures from high strength metallic alloys. These can be used as coatings, foams and as highly stressed components. This research presents an in depth investigation on the utilisation of DMD process to develop parts from high strength steel alloys and enhance the range of application of DMD beyond repair and coating. The work includes extensive study of the mechanical behaviour of solid and porous parts developed on DMD under static, dynamic, severe wear and fatigue loading conditions. The research outcomes fulfil several research gaps in the characterisation of laser generated high strength steel parts and endorsed by a number of publications in highly reputed journals.
History
Thesis type
Thesis (PhD)
Thesis note
Thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy, Swinburne University of Technology, 2016.