Development of High Performance Ni-Base Alloys for Gas Turbine Wheels using a Co-Precipitation Approach Email Page
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Performer:  Ohio State University Location:  Columbus, Ohio
Project Duration:  10/01/2017 – 09/30/2020 Award Number:  FE0031278
Technology Area:  Advanced Turbines Total Award Value:  $836,651
Key Technology:  Advanced Combustion Turbines DOE Share:  $600,000
Performer Share:  $236,651

Phase field model simulation showing that γ’’ provides a barrier to diffusion of Al which is needed for γ’ to grow
Phase field model simulation showing that γ’’ provides a barrier to diffusion of Al which is needed for γ’ to grow

Project Description

The Ohio State University will focus on the design and development of novel superalloys with improved creep strength under high operating temperatures. A new generation of Ni-base superalloys, with creep properties at 1200°F, that are comparable to conventional alloy 718 operating at 1000°F, will be developed by utilizing the strategy of co-precipitation of strengthening phases that inhibits the deleterious coarsening on these phases during conventional processing of large turbine disks. Building upon research in an earlier NETL effort (DE-FE0026299), validated modeling capabilities for predicting precipitation sequences, yield strength, and creep response will be produced.

Project Benefits

Anticipated benefits from projects funded through the University Turbine Systems Research (UTSR) Program include development of technologies that will accelerate turbine performance, efficiency, and emissions reduction beyond the current-state-of-the-art and reduce the risk to market for novel and advanced turbine-based power generation. In addition, the UTSR Program seeks to maintain and enhance U.S. university-based turbine science capabilities to ensure a world-class scientific workforce for future generations. UTSR is a component of NETL’s Advanced Turbines Program that manages a portfolio of projects designed to remove environmental concerns over the future use of fossil fuels by developing revolutionary, near-zero-emission advanced turbines technologies.

Presentations, Papers, and Publications

Contact Information

Federal Project Manager Patcharin Burke:
Technology Manager Richard Dennis:
Principal Investigator Michael Mills: