Increasing global demands for energy are spurring research efforts to improve the efficiency of fossil power plants while simultaneously reducing the emission of greenhouse gases. Current research reveals that a power plant’s efficiency increases when it is operated at Advanced Ultra Super Critical (A-USC) temperatures and pressures. These operating conditions require some plant components to be made from nickel-based superalloys. Previous research has established HAYNES® 282® alloy1 (UNS N07208), a Ni-Cr-Co-Mo-Ti-Al precipitation hardenable alloy, as a viable choice for A-USC applications. For such components, current interest is focused on the development of a single step age hardening treatment. An earlier paper presented the mechanical properties of an 8-hour single step age hardening heat treatment at 800°C (1472°F)/8 hr/AC. This paper will review preliminary results of a shorter single age treatment: 800°C (1472°F)/4 hr/AC.
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ASME 2018 Symposium on Elevated Temperature Application of Materials for Fossil, Nuclear, and Petrochemical Industries
April 3–5, 2018
Seattle, Washington, USA
Conference Sponsors:
- ASME Standards and Certification
ISBN:
978-0-7918-4076-4
PROCEEDINGS PAPER
Continued Developments in the Characteristics of HAYNES® 282® Alloy for Use in A-USC Applications
J. R. Robertson
J. R. Robertson
Haynes International, Inc., Kokomo, IN
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J. R. Robertson
Haynes International, Inc., Kokomo, IN
Paper No:
ETAM2018-6745, V001T01A007; 8 pages
Published Online:
May 8, 2018
Citation
Robertson, JR. "Continued Developments in the Characteristics of HAYNES® 282® Alloy for Use in A-USC Applications." Proceedings of the ASME 2018 Symposium on Elevated Temperature Application of Materials for Fossil, Nuclear, and Petrochemical Industries. ASME 2018 Symposium on Elevated Temperature Application of Materials for Fossil, Nuclear, and Petrochemical Industries. Seattle, Washington, USA. April 3–5, 2018. V001T01A007. ASME. https://doi.org/10.1115/ETAM2018-6745
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