06 September 2022
As metal additive manufacturing (AM) matures, heat treatments need to be adjusted to accommodate the unique condition of the material. The complicated thermal history caused by AM processes leads to microstructures that are not typically seen in wrought, cast or powder metallurgy material.
Current heat treatment standards have been investigated for AM materials with variable success. ‘Traditional’ heat treatment standards were developed for different microstructural ‘starting points’, hence why they lead to variable results for AM material. Hence, heat treatment should be adjusted to accommodate the unique condition of AM materials.
This adjustment can involve changing temperatures, holding times, environment and cooling methods. Adjusting heat treatments can also allow for modifying AM microstructure, such as decreasing material anisotropy between the build and transverse directions.
This webinar will discuss general points around heat treatment and the possible adjustments to accommodate the AM material condition. Case studies of ‘traditional’ and adjusted heat treatments on a variety of materials will also be presented.
Project Leader, Thermal Processing Technologies
Dr Konstantinos (Kostas) Georgilas is a Project Leader in the Thermal Processing Technologies section at TWI Ltd, having joined as a PhD student in 2016 and a Project Leader in 2019.
He has an M.Eng in Chemical Engineering from the Aristotle University of Thessaloniki (Greece), an M.Sc in Advanced Material Manufacturing from the University of Nottingham and a PhD in Engineering from the University of Aberdeen.
Kostas has 6 years experience around the material properties before, during and post powder bed fusion AM processes. Particular specialisations are the characterisation of metal powders and the post-thermal heat treatment of AM material.
Senior Project Leader - Surface, Corrosion, and Interface Engineering
Dr Dibakor Boruah is a Senior Project Leader in the Surface, Corrosion, and Interface Engineering (SCI) section at TWI, having joined as a PhD researcher through NSIRC in 2017.
He has a master's degree in Advanced Mechanical Engineering from University of Sussex, and PhD in Materials and Manufacturing Engineering from Coventry University. As a post-doctoral researcher at Ghent University, Dibakor worked as a leading researcher on multiple collaborative projects related to additive manufacturing.
Dibakor has more than five years of industry led research experience in materials engineering and is currently contributing to various projects related to cold spray additive manufacturing and thermal spray processes at TWI.