| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Materials Design and Alloy Development II
|
| Presentation Title |
A-63: Hybrid Additive Manufacturing of MS1-H13 Steels via Direct Metal Laser Sintering |
| Author(s) |
Sajad Shakerin, Mohsen Mohammadi |
| On-Site Speaker (Planned) |
Mohsen Mohammadi |
| Abstract Scope |
A bimetal steel was additively manufactured by depositing maraging steel powder (MS1) on top of a tool steel H13 through the direct metal laser sintering technique (DMLS). The microstructure and interfacial morphology of the hybrid MS1-H13 steel were characterized using optical microscopy (OM), scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS), and electron backscatter diffraction (EBSD). Uniaxial tensile and microhardness tests along with fractography of the fracture surfaces were carried out to investigate the mechanical behavior of the hybrid MS1-H13 steel. The results showed that no cracks or porosities were formed at the interface proving the reliability of the hybrid MS1-H13 steel. The interface between the DMLS-MS1 and the underlying H13 tool steel was as narrow as 2µm. The microhardness tests across the interface revealed an abrupt increase of the hardness on the printed side leading to a stronger interface. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |