Concurrent Design of a Multimaterial Niobium Alloy System for Next-generation Turbine Applications

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Program:
ULTIMATE
Award:
$1,199,135
Location:
Evanston, Illinois
Status:
ALUMNI
Project Term:
08/30/2021 - 09/01/2023

Technology Description:

QuesTek Innovations will apply computational materials design, additive manufacturing (AM), coating technology, and turbine design/manufacturing to develop a comprehensive solution for a next-generation turbine blade alloy and coating system capable of sustained operation at 1300°C. QuesTek will design a niobium (Nb)-based multimaterial alloy system consisting of a ductile, precipitation-strengthened, creep (deformation)-resistant alloy for the turbine “core” combined with an oxidation-resistant, bond coat-compatible Nb alloy for the “case.” AM techniques, such as directed energy deposition, will enable fabrication of a turbine blade structure with composition and microstructure tailored to resolve the inherent conflict between mechanical performance and oxidation resistance. A novel coating system with thermal and chemical properties compatible with the underlying alloy will be developed to provide environmental and thermal protection.

Potential Impact:

Combining development of new ultrahigh temperature materials with compatible coatings and manufacturing technologies has the potential to increase gas turbine efficiency up to 7%, which will significantly reduce wasted energy and carbon emissions.

Security:

Coal-fired and nuclear-powered plant electricity generation is uneconomical, unsafe, outdated, and/or contributes to significant CO2 emissions. Increasing gas turbine efficiency is critical to ensuring that plants can effectively deploy their capacity to the grid, increasing energy security.

Environment:

Improving gas turbine efficiency can significantly reduce carbon emissions from air travel, which represents 2% of all global carbon emissions.

Economy:

By 2050, a 7% efficiency improvement in the natural gas turbines used for U.S. electricity generation could save up to 15-16 quads of energy; in civilian aircraft turbines, 3-4 quads of energy could be saved for U.S. air travel.

Contact

ARPA-E Program Director:
Dr. Philseok Kim
Project Contact:
Dr. Greg Olson
Press and General Inquiries Email:
ARPA-E-Comms@hq.doe.gov
Project Contact Email:
golson@questek.com

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Release Date:
04/21/2020