| 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 |
Factors Affecting Na<sub>2</sub>SO<sub>4</sub> -Deposit-Induced Corrosion of Ni-Based Superalloys at High Temperatures |
| Author(s) |
Preston Nguyen, Douglas Konitzer, Brian Gleeson |
| On-Site Speaker (Planned) |
Preston Nguyen |
| Abstract Scope |
Hot corrosion of Ni-based superalloys has been extensively studied due to its deleterious effect on aeroengine turbines. It is understood that hot corrosion is an extremely complex process that depends on interactions between the alloy, temperature, environmental deposits, and gases. Work has been done to try to simulate the complexity of hot corrosion, but the implementation of complex testing procedures lacks clear conclusions. The principal aim of this study is to investigate the separate effects of NaCl and SO<sub>2</sub> additions to Na<sub>2</sub>SO<sub>4</sub> hot corrosion and to understand the combined effects when implemented together. Understanding the separate effects of secondary additions to Na<sub>2</sub>SO<sub>4</sub> deposits and subsequently the combined effects can serve to address current knowledge gaps, while also enhancing lab-scale testing to be more akin to operating conditions in the field. An increased understanding of the combined effects of hot corrosion variables can provide crucial understanding to develop better mitigation strategies. |