Authors:
Yasin M. El Sayed (1), Alessandro Colaneri (1), Stefano Lionetti (1), Leonardo Fransesini (1), Chiara Guerrera (1), Oriana Tassa (1)
1- RINA Consulting – Centro Sviluppo Materiali, Italy
Abstract:
The purpose of this work was to develop a heat treatment to be performed on Additive Manufacturing (AM) 3D printed samples made of M300 steel to improve their mechanical properties, tailoring the as-built microstructure with the minimization of material defects like voids, porosity, micro-cracks, and variations in material structure. Different solution and ageing heat treatments were performed on samples printed via the Selective Laser Melting (SLM) technique, testing different durations, temperatures, and trends in the heating and cooling phases. The samples were microscopically analysed and mechanically tested with tensile tests and hardness (HV10). The results were compared with as-is samples showing improved mechanical properties, meaning an effective heat treatment was applied.
DOI:
https://doi.org/10.59499/EP246281343
