About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Additively Manufactured Alloys
|
| Presentation Title |
High Performance AM Stainless Steel 316L Under Corrosive Environment |
| Author(s) |
Thomas Voisin, Zhen Qi, Yuliang Zhang, Rongpei Shi, Josh Kacher, Manyalibo Matthews, Brandon Wood, Y. Morris Wang |
| On-Site Speaker (Planned) |
Thomas Voisin |
| Abstract Scope |
In this work, we investigate the performance of additively manufactured 316L stainless steel (AM316L SS) in corrosive solution (NaCl). Our main results show that the rapid solidification-induced chemical heterogeneities and the process-induced high surface roughness do not prevent the as-built material to far exceed the corrosion pitting potential of the conventional 316L SS. The first part of the talk will introduce the multi-scale microstructural features that are present in the as-built and annealed AM 316L SS. The second part will focus on understanding why the AM 316L SS is better than its conventional counterpart. To ensure a multi-scale experimental and theoretical approach, we use state-of-the-art in and ex situ electron microscopy, galvanic corrosion testing, and atom force microscopy in addition to phase-field simulations.
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: |