Computational Design of Weldable, High-Cr Ferritic Steel


QuesTek Innovations, LLC
Website:  QuesTek Innovations LLC
Award Number:  SC0006222
Project Duration:  06/17/2011 – 08/07/2016
Total Award Value:  $1,149,906
DOE Share:  $1,149,906
Performer Share:  $0
Technology Area:  Plant Optimization Technologies
Key Technology:  High Performance Materials
Location:  Evanston, Illinois

Project Description

The purpose of this Phase II SBIR program is to create a new alloy for AUSC coal-fired boilers using QuesTek's computational alloy design methodology and specific experience developing and commercializing a creep-resistant ferritic super-alloy with low processing cost related to welding. In Phase I, QuesTek's new alloys showed superb high-temperature tensile strength and robust weld-zone microstructure unseen in incumbent alloys such as P92. Based on the results from the Phase I prototype alloys and on input from project stakeholders, the Phase II objective is to execute a detailed alloy design and demonstrate the performance and processing characteristics satisfying the alloy design criteria. Working with one of its suppliers, QuesTek will prototype ingots to specification at intermediate size scales (30 lb. and 1,500 lb. size). Alloy creep strength, weldability, and steamside and fireside oxidation resistance will be demonstrated in the inter-mediate-scale materials.

Project Benefits

Significant enhancement of the thermal efficiency of coal-fired steam boilers for power generation through the use of A-USC steam temperatures and pressures is anticipated. Since coal fired power plants are currently the dominant source of domestic power generation, accelerated design, development and commercialization of efficient, reliable, next-generation coal-fired power plants will enhance U.S. technical leadership in advanced power generation and energy security.

Contact Information

Federal Project Manager 
Sydni Credle:
Technology Manager 
Robert Romanosky:
Principal Investigator 
Jason Sebastian:

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