About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques
|
| Presentation Title |
A-40: Strengthening Effect and Thermal Stability of Sub-grain Solidification Structures in L-PBF Stainless Steel 316L |
| Author(s) |
Thomas Voisin, Jean-Baptiste Forien, Y. Morris Wang |
| On-Site Speaker (Planned) |
Thomas Voisin |
| Abstract Scope |
316L stainless steels (316L SS) made via the laser powder bed fusion (L-PBF) technique has shown an outstanding combination of high strength and ductility. Using a suite of in situ and post mortem characterization techniques such as TEM, SEM/EBSD, high energy XRD we investigate the effect of the sub-grain solidification cells and precipitates on the tensile properties and the their thermal stability up to 1200C. We observe a drop in strength at annealing temperatures above 600C, when sub-grain structures become unstable. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |