| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Advances in High-Temperature Oxidation and Degradation of Materials for Harsh Environments: A SMD and FMD Symposium Honoring Brian Gleeson
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| Presentation Title |
Alloying Elements as Key Drivers in Hot Corrosion |
| Author(s) |
Mathias C. Galetz, Till König, Katharina Beck, Lukas Korell, Ceyhun Oskay |
| On-Site Speaker (Planned) |
Mathias C. Galetz |
| Abstract Scope |
Hot corrosion in its various manifestations has been investigated for more than 80 years and is one of the industrially most relevant and at the same time scientifically most interesting forms of attack at high temperatures. Hot corrosion, driven by the interaction between molten salts and materials at high temperatures, unfolds in all its complexity as an exciting interaction between materials, environment and chemical reactions. Not only salt deposits, but also alloying elements, such as nickel, cobalt and molybdenum have the power to drive the attack and determine the type of the corrosion. Brian Gleeson’s work has been key in the understanding of the underlying mechanisms and an inspiration for the work presented here. In conclusion, this paper covers hot corrosion results on nickel-based alloys, steels and molybdenum-based systems and invites to a re-evaluation of Type I and Type II hot corrosion based on alloy and salt compositions. |