About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2026 - In-Situ Characterization Techniques
|
| Presentation Title |
In-situ Mechanical Characterisation of Hydrogen Embrittlement in Additively vs Conventionally Manufactured 316L Steels |
| Author(s) |
Phoebe Cutts, Yijun Liu, Biao Cai |
| On-Site Speaker (Planned) |
Phoebe Cutts |
| Abstract Scope |
316L stainless steel is widely used in hydrogen facing applications, due to its austenitic microstructure, which exhibits a low hydrogen diffusivity. Despite this, the material remains susceptible to hydrogen embrittlement (HE) - a phenomenon that reduces ductility and can lead to unpredictable failure. However, a better understanding of the (HE) mechanisms of 316L steel on a microstructural level is needed. This research utilises a combination of in situ tensile testing techniques: X-ray diffraction (XRD), scanning electron microscopy (SEM), and electron backscatter diffraction (EBSD). These investigate the deformation behaviours of both hydrogen-charged and uncharged samples and compare conventionally manufactured 316L with additively manufactured samples. This analysis will show how variations in microstructure and internal hydrogen influence deformation and fracture mechanisms under applied strain. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Characterization, Iron and Steel |