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Details of Grant 

EPSRC Reference: GR/S45768/01
Title: NSF: Quantification of the Conditions Leading to the Formation of Defects in SX Superalloy Processing
Principal Investigator: Lee, Professor P
Other Investigators:
Mills, Professor KC
Researcher Co-Investigators:
Project Partners:
Alstom Group Cannon-Muskegon Corp Pratt & Whitney
Rolls-Royce Plc Siemens Solar Turbines
University of Florida
Department: Materials
Organisation: Imperial College London
Scheme: Standard Research (Pre-FEC)
Starts: 01 April 2004 Ends: 30 September 2007 Value (£): 310,399
EPSRC Research Topic Classifications:
Energy - Conventional Materials Characterisation
EPSRC Industrial Sector Classifications:
Aerospace, Defence and Marine
Related Grants:
Panel History:  
Summary on Grant Application Form
The programme will, in conjunction with a parallel NSF project at the University of Florida, identify the principal factors causing the formation of solidification defects in single crystal superalloy castings. The Imperial College project will focus on measuring the critical materials properties controlling the mechanisms that cause defects for alloy compositions and at temperatures appropriate to the melting range of advanced commercial and experimental SX superalloys. Particular attention will be paid to the role of refractory element additions (W, Re, Ru) and grain boundary modifiers (C, Hf) that have a profound effect on casting characteristics at low concentrations. The material properties are required required for quantification of numerical models of solidification and defect formation. Advanced measurement facilities at the National Physical Laboratory will be used for density, viscosity and surface tension characteriastion; techniques for measurement of liquid state solute diffusion will be refined within the programme. The measured constants will be incorporated in numerical models to simulate SX casting.
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Organisation Website: http://www.imperial.ac.uk