Computational Design and Performance Prediction of Creep-Resistant Ferritic Superalloys

 

Courtesy of Center for Nano-phase<br/>Materials Sciences at ORNL (DOE) -<br/>G. Song, Z. Sun, P. K. Liaw, Unpublished, UTK
Courtesy of Center for Nano-phase
Materials Sciences at ORNL (DOE) -
G. Song, Z. Sun, P. K. Liaw, Unpublished, UTK
Performer: 
The University of Tennessee
Website:  University of Tennessee
Award Number:  FE0024054
Project Duration:  10/01/2014 – 09/30/2017
Total Award Value:  $626,681
DOE Share:  $500,000
Performer Share:  $126,681
Technology Area:  Coal Utilization Science
Key Technology:  High Performance Materials
Location:  Knoxville, Tennessee

Project Description

The objectives of this research are to (1) develop and integrate modern computational tools and algorithms, i.e., predictive first-principles calculations, computational-thermodynamic modeling, and meso-scale dislocation-dynamics simulations, to design high-temperature alloys for applications in fossil energy power plants; and (2) understand the processing-microstructure-property-performance links underlying the creep behavior of novel ferritic alloys strengthened by hierarchical coherent B2/L21 precipitates.

Project Benefits

The proposed research will advance computational modeling used in the accelerated design of high-temperature alloys. The methods developed to compute thermodynamic and kinetic quantities from first-principles calculations will be applicable to other alloy systems. Quantitative creep modeling will lay a foundation for designing a wide range of advanced precipitation-strengthened alloys. It is also expected that the project will develop a novel creep-resistant hierarchical ferritic superalloy for applications in advanced steam-turbine systems. Also, Ph.D. students and research associates will be trained in the integration of state-of-the-art computational and experimental methods that will form the framework for modern alloy design.

Contact Information

Federal Project Manager 
Richard Dunst: richard.dunst@netl.doe.gov
Technology Manager 
Briggs White: briggs.white@netl.doe.gov
Principal Investigator 
Peter Liaw: pliaw@utk.edu
 

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