About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Corrosion of Advanced Materials: Theory and Practice
|
| Presentation Title |
Corrosion Behaviour of Directed Energy Deposited NiCoCr Alloy in Cryogenic Environments |
| Author(s) |
Adnan Khan, Thaer Syam, Bilal Mansoor |
| On-Site Speaker (Planned) |
Adnan Khan |
| Abstract Scope |
NiCoCr medium entropy alloys (MEAs) have attracted significant interest due to their exceptional performance at cryogenic temperatures, making them ideal for critical oil and gas applications. However, their corrosion behaviour under such conditions remains largely unexplored, posing challenges for safe deployment. This study will investigate the corrosion response of directed energy deposition (DED) printed NiCoCr, focusing on the passive film stability and pit initiation and propagation mechanisms at cryogenic temperatures. Microstructural analysis will be performed using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Potentiodynamic polarization (PD) and electrochemical impedance spectroscopy (EIS) tests will be conducted at -50°C to assess corrosion behaviour, while X-ray photoelectron spectroscopy (XPS) will characterize the passive film. The critical pit size and the mechanism of pit initiation and propagation will be investigated using surface profilometry. The findings will provide valuable insights into the corrosion resistance of DED NiCoCr in cryogenic environments. |