| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Additively Manufactured Materials
|
| Presentation Title |
Corrosion Behavior of a Ni-Free Austenitic Stainless Steel Produced by Additive Manufacturing |
| Author(s) |
Sophia Isacco, Rahul Agrawal, Alex Helmer, Sean O'Brien, Sofia Antinozzi, Andrzej Wojcieszynski, Rajeev K. Gupta |
| On-Site Speaker (Planned) |
Rajeev K. Gupta |
| Abstract Scope |
Ni-free austenitic stainless steels containing high amounts of Mn and N as austenite stabilizers were produced using laser powder bed fusion. X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy confirmed the austenitic structure and uniform distribution of alloying elements. The corrosion behavior was investigated using cyclic potentiodynamic polarization tests and electrochemical impedance spectroscopy. The corrosion resistance of the Ni-free austenitic stainless steels was compared with commonly used austenitic stainless steels, such as 316L. Despite the high Mn content, the Ni-free austenitic stainless steels exhibited significantly superior corrosion resistance compared to 316L. Additionally, X-ray photoelectron spectroscopy and transmission electron microscopy were performed to gain mechanistic insights. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Environmental Effects, Iron and Steel |