Physics-based Creep Simulation of Thick Section Welds in High Temperature and Pressure Applications


Microstructure of base metal, heat affected zone, and weld metal.
Microstructure of base metal, heat affected zone, and weld metal.
Idaho National Laboratory (INL)
Website:  INL - Idaho National Laboratory
Award Number:  FWP-B000-14029
Project Duration:  06/01/2015 – 09/30/2018
Total Award Value:  $955,000
DOE Share:  $955,000
Performer Share:  $0
Technology Area:  Coal Utilization Science
Key Technology:  Simulation-Based Engineering
Location:  Idaho Falls, ID

Project Description

The goal of this project is to improve the capability to perform accurate and rapid computational modeling of the long-term mechanical behavior of nickel superalloy weldments that will be used in advanced fossil energy power cycles. An improved capability to predict the long-term behavior of weldments will allow materials scientists and structural component designers to optimize the use of advanced materials in advanced fossil energy applications. In this project, Idaho National Laboratory (INL) will develop a microstructure-based creep model for nickel superalloys and add it to a computational platform, Multiphysics Object-Oriented Simulation Environment (MOOSE), that INL has developed for multi-scale simulation of the behavior of high-temperature materials in nuclear power plant applications.

Project Benefits

The development of improved computational methods to predict the long-term behavior of advanced materials and structural components in fossil energy power plants will reduce the time and expense of developing and qualifying new materials and enable a more cost-effective use of advanced materials at higher operating temperatures and pressures, which will result in higher efficiency fossil fuel-based power systems.

Contact Information

Federal Project Manager 
Vito Cedro:
Technology Manager 
Briggs White:
Principal Investigator 
Thomas Lillo:

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