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Preventing Solidification Defects in Large Superalloy Castings Used in Advance Electric Power Systems

West Virginia University has partnered with GE Energy, Special Metals Corp., and Pennsylvania State University to study macrosegregation in superalloy remelting processes.  Weakness in existing models, particularly the inability to accurately predict partition coefficients of key elements under real operating conditions, will be addressed.  Compositional effects of individual alloying elements in different alloys will be characterized so that a comprehensive database will be available in a usable format.  A predictive methodology incorporating advanced computation technologies will be developed.  Alloy index of freckle and center segregation formation can be determined for complex alloy compositions with efficient computational and laboratory analysis.  The ultimate goal is to develop a predictive technology that can be applied commercially to prevent solidification defects for large superalloy castings used in advanced electrical power systems.

Contact:

West Virginia University Research Corp. on behalf of West Virginia University
West Virginia University Mechanical & Aerospace Engineering
PO Box 6106
Morgantown, WV 26506
(304) 293-3111 x2324
Contact: Xingbo Liu
Email: Xingbo.Liu@mail.wvu.edu

Partners:

GE Energy
Special Metals Corp.
Pennsylvania State University

Cost:

Total project cost: $526,332
STAC-DOE portion: $375,473
Participant portion: $150,859

 

Statement of Work and Status

Quarterly Reports

Below are the quarterly reports as provided by the project to STAC, excluding some non-substantive and financial information. All available reports are listed below.


© 2006 State Technologies Advancement Collaborative
Send comments, Questions or Suggestions to: mnew@naseo.org

Last Updated: 08/29/07