| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Additively Manufactured Alloys
|
| Presentation Title |
Electrochemical Response of Additively Printed Inconel 718 by Laser-based Direct Energy Deposition |
| Author(s) |
Sangram Mazumder, Mangesh V. Pantawane, Yee-Hsien Ho, Narendra B. Dahotre |
| On-Site Speaker (Planned) |
Sangram Mazumder |
| Abstract Scope |
Precipitation hardened nickel-based superalloys marks a long tradition of applicability in oil field applications owing to their superior resistance to extreme environments. Additive manufacturing with all its fabrication advantages is breaking into oil and gas industries, promising rapid fabrication and repair of critical components. This research aims to investigate and underline the electrochemical behavioral traits of additively printed nickel superalloy Inconel 718 using laser-based direct energy deposition, known as DED. Electrochemical behavior was assessed using potentiodynamic polarization techniques and electrochemical impedance spectroscopy, and microstructural features were observed using scanning electron microscopy. Isotropic electrochemical behavior was observed in the horizontal and vertical sections of the DED printed Inconel 718 part with rapid detachment of undissolved secondary phases leading to higher current efficiencies at low current densities. Electrochemical behavioral results indicated similar and comparable traits in terms of pitting, in additively printed and commercially available Inconel 718. |
| Proceedings Inclusion? |
Planned: |