Materials Qualification and Deployment for High Efficiency Coal Fired Boilers

 

H282 microstructure in age hardened condition.
H282 microstructure in age hardened condition.
Performer: 
ORNL - Oak Ridge National Laboratory
Website:  ORNL - Oak Ridge National Laboratory
Award Number:  FWP-FEAA117
Project Duration:  04/01/2015 – 09/30/2018
Total Award Value:  $820,000
DOE Share:  $820,000
Performer Share:  $0
Technology Area:  Plant Optimization Technologies
Key Technology: 
Location:  Oak Ridge, TN

Project Description

NETL is partnering with ORNL to address materials issues relevant to qualifying and deploying a nickel(Ni)-base alloy for a new application in an advanced ultrasupercritical coal-fired boiler. The project will deploy Haynes 282 (H282) alloy for application in superheaters, reheaters, and steam delivery pipes by completing base metal and cross-weld creep and tensile testing needed for an ASME Boiler and Pressure Vessel Code Case and the associated microstructural analyses needed for assurance of boiler-relevant lifetimes. Lab work will focus on tensile and creep testing of the base metal and cross welds in the 1,100 to 1,700 °F temperature range. The goal of this project is to generate the laboratory mechanical properties data needed to obtain ASME Code qualification of single aged H282 nickel superalloy for use in pressure-bearing components of coal-fired boilers and other high-temperature power generation equipment.

Project Benefits

Microstructural characterization will provide insights into failure mechanisms that will help support extrapolation methods of the lab creep test data to estimated creep strength at 100,000 hr life.

Contact Information

Federal Project Manager 
Vito Cedro: vito.cedro@netl.doe.gov
Technology Manager 
Briggs White: briggs.white@netl.doe.gov
Principal Investigator 
Bruce A. Pint: pintba@ornl.gov
 

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