Participants: LTU Division of Materials Science and GKN Aerospace Engine Systems
The additive manufacturing process known as Laser Powder Bed Fusion (L-PBF) is being investigated as a route to produce near net shape (NNS) rocket engine components. NNS manufacturing would reduce the cost, lead time and material waste currently associated with the conventionally employed methods.
Due to L-PBF being a complex process, far from equilibrium conditions, the alloys of interest must be evaluated at numerous stages, from initial powder to finished component.
The aim is to evaluate different austenitic stainless steel alloys for L-PBF, finding process parameters, investigate the thermal stability (cryogenic and elevated temperatures) and finding suitable heat treatments for optimal material behavior.
Luleå University of Technology
971 87 Luleå, Sweden