|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Fatigue in Materials: Fundamentals, Multiscale Modeling and Prevention
||Fatigue of a transient liquid phase bonded superalloy for use in a microchannel-heat exchanger
||Kyle Rozman, Monica Kapoor, Sajedur Akanda, Omer Dogan, Jeffrey Hawk
|On-Site Speaker (Planned)
Supercritical CO2 as a working fluid offers potential for increased efficiency in fossil fuel power plants. Unlike steam based systems, using sCO2 will require a series of recuperators at different temperatures. Consequently, recuperator design is critical. NETL is looking at micro-channel heat exchangers as one possibility and investigating their fabrication utilizing transient liquid phase bonding. Candidate alloy Haynes 230 was used to make the multilayer stacks through transient liquid phase bonding. Tensile, fatigue and creep specimens were extracted and tested. This work will present the fatigue testing results as strain-life curves. An assessment of the fracture modes of the bonded alloy will be discussed as it is related to fatigue test variables.
||Planned: Supplemental Proceedings volume