|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques II
||Material Processing-microstructure-mechanical Property Relationship of Supersolidus Liquid Phase Sintered Binder Jet Additively Manufactured H13 Tool Steel
||Jia Liu, Rangasayee Kannan, Dalong Zhang, Tingkun Liu, Peeyush Nandwana, Arun Devaraj
|On-Site Speaker (Planned)
Additive manufacturing (AM) of H13 tool steels by binder jet 3D printing (BJ3DP) and pressureless supersolidus liquid phase sintering (SLPS) provides a low-cost alternative manufacturing method for components with intricate geometrical features. However, the understanding of processing-microstructure-mechanical property relationships of BJ3DP-SLPS produced H13 tool steel is still in its infancy, which makes it challenging to maximize part performance via printing and post-processing methods. Here, we leverage atom probe tomography and transmission electron microscopy along with thermodynamic calculations to reveal the microstructure-mechanical property relationships in as-sintered H13 tool steel. The in-situ atom probe tomography is used to develop a deep understanding of the comprehensive processing-microstructure relationship at various stages. The morphology and composition of precipitates in the liquid channels are identified and associated with their mechanical property. These results provide direction to modify the microstructure of the AM-produced components by additional heat treatments to enhance their mechanical properties.
||Additive Manufacturing, Mechanical Properties, Iron and Steel