Modeling Long-Term Creep Performance for Welded Nickel-Base Superalloy Structures for Power Generation Systems Email Page
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Performer: General Electric Company - Div. GE Global Research
3D Model
3D Model
Website: General Electric Company
Award Number: FE0024027
Project Duration: 10/01/2014 – 11/30/2016
Total Award Value: $649,707
DOE Share: $499,755
Performer Share: $149,952
Technology Area: Coal Utilization Science
Key Technology: High Performance Materials
Location: Niskayuna, New York

Project Description

The goal of this project is to model long-term creep performance for nickel-based superalloy weldments in high temperature power generation systems. The project will use physics-based modeling methodologies and algorithms to predict alloy properties in heterogeneous material structures. The modeling methodology will be demonstrated on a gas turbine combustor liner weldment of Haynes H282 precipitate-strengthened nickel-based superalloy.

Project Benefits

Results obtained from this project are expected to provide a better understanding of microstructural evolution in base material and welded H282 alloy in particular and wrought nickel-based alloys in general. This will help to predict performance of structural alloys subjected to high-temperature creep under realistic loading conditions of actual power generation components. While this work will be on gas turbine combustor liner application using a recently developed alloy, it will provide a general methodology for evaluating performance of new alloys for high-temperature applications. This approach is expected to reduce the time and cost to introduce new materials as well as reduce the risk related to early failure due to microstructural changes during service.

Contact Information

Federal Project Manager Vito Cedro:
Technology Manager Briggs White:
Principal Investigator Chen Shen:


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