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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Materials in Clean Power Systems IX: Durability of Materials
Presentation Title Evaluation of the Creep-Rupture Behavior of Haynes Alloy 282 for Advanced Ultrasupercritical Boiler Service
Author(s) Peter F Tortorelli, Kinga Angelika Unocic, H. Wang, Michael Santella
On-Site Speaker (Planned) Peter F Tortorelli
Abstract Scope Haynes alloy 282 is one of several nickel-based superalloys being considered for use in superheaters and reheaters of advanced high-efficiency pulverized coal boilers operating under supercritical steam conditions as well as in other high-temperature, high-pressure energy conversion systems. Accordingly, the creep behavior of this precipitation strengthened alloy has been studied at up to 800C over a range of stresses that yielded rupture times from approximately 340 h 13,000 h. The creep data were correlated with results from fractographic and microstructural analyses with particular emphasis on the long-term stability of the -Ni3(Ti,Al) strengthening phase precipitates and grain boundary carbides. Simple lifetime prediction approaches indicated that aged Haynes 282 should achieve the long lifetimes necessary for advanced steam boiler conditions (for example, 100,000 h at 100 MPa and 750C) with greater creep-rupture lifetimes than Inconel 740 and alloy 617 up to at least 750C. Research sponsored by the Crosscutting Research Program, Office of Fossil Energy, U.S. Department of Energy.
Proceedings Inclusion? Planned: A print-only volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Characterization of Titanium Thin-Film Liquid/Gas Diffusion Layer in Clean and Renewable Power Systems
Computational Modeling of Metal Oxidation
Corrosion Behaviour of 9-12Cr Ferritic Steels and 18-25Cr Austenitic Steels in Supercritical CO2
Corrosion of Energy System Materials in Supercritical Carbon Dioxide (sCO2)
Corrosion of Nickel-base Alloys by Supercritical CO2
Corrosion of Supercritical CO2 Turbomachinary Components
Cyclic Behavior and Fatigue Properties for Haynes 282
Development of Creep Resistant High Cr containing FeCrAl Ferritic Alloys for Fossil Energy Applications
Development of HfB2-ZrB2 Based Ceramics as High Temperature Electrode Materials for MHD Direct Power Extraction System
Effect of Temperature and Pressure on Supercritical CO2 Compatibility of Structural Alloys
Electrodeposition of MCrAlY and Pt-Modified MCrAlY Coatings for Gas-Turbine Engine Applications
Evaluation of the Creep-Rupture Behavior of Haynes Alloy 282 for Advanced Ultrasupercritical Boiler Service
Heat Resistant Alloy Development for Fossil Energy Power Generation
High-Temperature Corrosion of Diffusion Bonded Haynes 230 in Supercritical CO2 Cycle Conditions
High Pressure Steam Oxidation of Boiler and Turbine Alloys
High Temperature Corrosion in Molten Salts & Molten Salts Technology: Past, Present and Future
High Temperature Oxidation and Mechanical Properties of Novel Al-containing Fe-based ODS Alloys
Long-term Microstructural Stability in Haynes 282 after High Temperature Exposure
M-1: Effect of High Temperature Cyclic Oxidation on the Deformation of ODS and Cast FeCrAlY Alloys
M-2: Effect of Mechanical Loading on Galvanic Corrosion Using Electrochemical Characterization Techniques and Depth Profiling
M-3: Electrodeposition of Amorphous/Nanocrystalline Ni–Mo Alloy for Hydrogen Evolution Reaction
M-4: Phyllanthus Muellerianus and Triethanolamine Synergistic Effects on Steel-reinforced Concrete in 0.5 M H2SO4: Implication for Clean Corrosion-protection of Wind-energy Structures in Industrial Environment
Materials Issues for Supercritical CO2 above 700C
Mechanical Characterization of Solid Acid Materials for Intermediate Temperature Fuel Cells
Precipitation Dynamics and the Role of Microstructural Changes in the Development of Alumina-Forming Austenitic Stainless Steels
Weldability of Gradient Tubes for High Temperature Application

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