| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
A-123: Microstructural Characteristics of Stainless Steel 316L Processed by Selective Laser Melting Technology |
| Author(s) |
Ismat Ara, X. W. Tangpong, Fardad Azarmi |
| On-Site Speaker (Planned) |
Ismat Ara |
| Abstract Scope |
Among various additive manufacturing methods, selective laser melting (SLM) is a practical method for metal manufacturing due to its ability to make complex geometry and fabricate parts with superior mechanical properties. Utilization of high strength laser in SLM system forms a high temperature gradient which may alter microstructure of 3D printed metals due to rapid cooling during solidification process. The present study focuses on the microstructural evolution of AISI 316L stainless steel manufactured by SLM to better understand its characteristics and features for further improvement of this technology. Optical Microscopy (OM), Scanning Electron Microscopy (SEM) & Energy Dispersive X- Ray spectroscopy (EDX) analyses have been carried out on the 3D printed samples. The microstructural observation indicated very low porosity with homogeneous composition throughout the specimen. A layer by layer structure with columnar grains grown in the direction of heat transfer were clearly seen in the microstructure. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |