Optimization of Advanced Steels for Cyclic Operation Through an Integration of Material Testing, Modeling and Novel Component Test Validation Email Page
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Performer:  Electric Power Research Institute, Inc. Location:  Palo Alto, CA
Project Duration:  09/01/2015 – 03/31/2018 Award Number:  FE0026260
Technology Area:  Plant Optimization Technologies Total Award Value:  $786,322
Key Technology:  High Performance Materials DOE Share:  $599,058
Performer Share:  $187,264

Scanning electron microscopy evaluation of longest duration sample.
Scanning electron microscopy evaluation of longest duration sample.

Project Description

NETL is partnering with Electric Power Research Institute Inc. to qualify improved high-performance structural materials for application in current power plants in order to improve flexibility. The project will (1) develop the needed microstructural processing and performance relationships and associated material models for specific constituents in fabricated weldments (such as the parent material, heat affected zone regions, and weld metal); (2) apply these metallurgical relationships through modeling to a composite welded component subjected to cyclic operational conditions under both mechanical and thermal loading; and (3) validate the model through novel structural feature and component tests. The project will make a significant impact in the technical community by improving existing mainstay creep stength-enhanced ferritic steels operating under flexible operation modes.

Project Benefits

The expected benefits of the project will be demonstration at lab scale of an improved version of P92 steel and its weldments for use in cycling fossil energy power plants, and a new procedure for creep-fatigue and thermo-mechanical fatigue testing of weldments that bridges the gap between current small-specimen lab testing procedures and testing of full-scale power plant components.

Presentations, Papers, and Publications

Contact Information

Federal Project Manager Vito Cedro: vito.cedro@netl.doe.gov
Technology Manager Briggs White: briggs.white@netl.doe.gov
Principal Investigator John Seifert: jseifert@epri.com