|About this Abstract
||2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
||A Combinatorial Approach of Alloy Modification and Heat Treatment Strategies, Towards a Tailored Microstructure with Improved Mechanical Properties of Hot Work Tool Steel
||Iris Raffeis, Frank Adjei-Kyeremeh, Simon Ewald, Uwe Vroomen, Johannes Henrich Schleifenbaum, Andreas Bührig-Polaczek
|On-Site Speaker (Planned)
Hot Work Tool steels (HWTS) are of huge industrial significance because of their tooling applications owing to among others their high toughness properties and resistance to soft hardening. Due to the inherent benefits of the Additive Manufacturing (AM) process-route, particularly the Laser Powder Bed Fusion (LPBF) process, AM processability of these alloys have received keen interest. However, recent advances in that regard have either fallen short of comprehensive microstructure characterisation or to improve reported poor ductility, adopted several heat treatments steps. This investigation takes the approach of combining both alloy modification and heat treatment strategies to present a methodology for achieving tailored microstructure with enhanced mechanical properties of an H11 (1.2343) LPBF processed HWTS. A standard H11 HWTS and its modification (H11-M) are both LPBF processed in as-built, pre-heat and post heat-treated conditions with comparative mechanical testing and microstructure characterisation.
||Definite: Post-meeting proceedings