Tue, 15 September, 2020
TWI Consultant Dr Raja Khan is due to present at the EPMA EuroPM 2020 conference. Raja will present work he has undertaken alongside NSIRC PhD student Alessandro Sergi and Professor Moataz Attallah on the topic of Hot Isostatic Pressing of Inconel 625, with the focus on the effect of powder production type on microstructure and mechanical properties.
Abstract of the conference paper:
Near net shape powder metallurgy hot isostatic pressing (NNS PM HIP), is becoming a widely recognised manufacturing process due to its capability of producing fully dense complex parts with isotropic mechanical properties. Pre-alloyed metal powders produced by various powder production methods can greatly affect microstructure and the mechanical properties of NNS PM HIP parts.
In this work, HIP response of IN625 powders produced by four different atomisation methods, i.e. water atomised, nitrogen gas atomised, argon gas atomised and plasma atomised, were assessed. Powders were fully characterised to assess their chemical composition, flowability, apparent, tap and packing densities, particle size distribution and surface morphology. All four IN625 powders were HIPed to assess their microstructure and the mechanical properties to down select the best powder for NNS PM HIP parts manufacturing.
This year’s EPMA conference will be held virtually between 5th to 7th October 2020 and you can find out more here.