|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Hume-Rothery Symposium: Accelerated Measurements and Predictions of Thermodynamics and Kinetics for Materials Design and Discovery
||Computational Modeling-Assisted Development of Cast Alumina-forming Austenitic Stainless Steels for High Temperature Corrosive Environments
||Govindarajan Muralidharan, Yukinori Yamamoto, Michael P Brady, Shivakant Shukla, Tanya Ros, Stanley Fauske, Roman Pankiw, Jim Myers
|On-Site Speaker (Planned)
Cast chromia-forming austenitic stainless steels such as HP-type alloys are used in a wide range of industrial applications such as high temperature furnace components, radiant burner tubes, and ethylene cracking furnaces that demand high temperature microstructural stability, corrosion resistance, and creep strength. Although alumina scales offer better corrosion protection at these temperatures, developing cast austenitic alloys that form a stable alumina scale and achieve creep strength comparable to existing cast chromia-forming alloys, has been challenging. This work outlines our recent work on the development of cast Fe-Ni-Cr-Al austenitic stainless steels for use in high temperature industrial and chemical environments as an alternative to cast chromia-forming cast austenitic stainless steels using computational thermodynamic modeling and laboratory scale validation. This talk will highlight the challenges in design and in scale-up. Research sponsored by ARPA-E, US Department of Energy, under Contract DE-AC05-00OR22725 with UT-Battelle, LLC.