About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
High Temperature Oxidation of Metals and Ceramics
|
Presentation Title |
Effects of Secondary Additions to Na2SO4 Deposits on High-Temperature Hot Corrosion |
Author(s) |
Preston Nguyen, Brian Gleeson |
On-Site Speaker (Planned) |
Preston Nguyen |
Abstract Scope |
Ni-based superalloys are crucial in the operation of gas turbine engines. Due to the interaction of environmental deposits and gases during high temperature operation, hot corrosion testing is needed to elucidate the effects of deposit, atmosphere, and temperature on the degradation of Ni-based superalloys. The principal aim of this study was to investigate the corrosive effects of commonly found environmental species when added to Na2SO4. Both NaCl-Na2SO4 and SiO2-Na2SO4 salt mixtures were studied initially to evaluate the hot corrosion behavior and to elucidate the mechanisms that affect the reaction products that form during the exposures. Developing the understanding behind the hot corrosion behavior for these binary melts on Ni-based superalloys will help fulfill current knowledge gaps and enable better mitigation strategies. |