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Projects: Projects for Investigator
Reference Number GR/S81155/01
Title Predictive Modelling of Mechanical Properties of Materials for Fusion Power Plants
Status Completed
Energy Categories Nuclear Fission and Fusion(Nuclear Fusion) 100%;
Research Types Basic and strategic applied research 100%
Science and Technology Fields PHYSICAL SCIENCES AND MATHEMATICS (Metallurgy and Materials) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Dr SG Roberts
No email address given
University of Oxford
Award Type Standard
Funding Source EPSRC
Start Date 20 October 2004
End Date 19 January 2009
Duration 51 months
Total Grant Value £482,629
Industrial Sectors Energy
Region South East
Programme Materials, Mechanical and Medical Eng, Physical Sciences
Investigators Principal Investigator Dr SG Roberts , Materials, University of Oxford (99.998%)
  Other Investigator Dr AJ Wilkinson , Materials, University of Oxford (0.001%)
Professor D Pettifor , Materials, University of Oxford (0.001%)
  Recognised Researcher Dr D (Duc ) Nguyen-Manh , Culham Centre for Fusion Energy, EURATOM/CCFE (0.000%)
  Industrial Collaborator Project Contact , EURATOM/CCFE (0.000%)
Web Site
Abstract This research project is aimed at a thorough understanding of the microstructure, flow and fracture behaviour of metals and alloys with the the body-centred cubic crystal structure. The specific focus is on materials proposed for structural components in fusion power plants; vanadium and tungsten, iron and iron-chromium binaries up to 12% Cr. The project will also examine the changes in behaviour of the materials produced by irradiation. The understanding achieved in the project will enable us to predict the mechanical behaviour of these and related materials.The approach is to use inter-linked computer modelling methods, at scales ranging from the sub-atomic to that of the materials' microstructure. Each level will use input parameters derived from more fundamental levels of modelling. The key elements are (a) abinitio modelling for development of interatomic potentials for use in molecular dynamics (MD) simulations; (b) MD modelling of (i) defect generation under high-energy neutron irradiation, (ii) dislocation mobility in defect-free crystals of the materials and (iii) interactions of dislocations with defects; (c) kinetic theory and kinetic Monte-Carlo modelling of evolution of collision cascade structures beyond the MD timescale; (d) dislocation dynamics simulations of flow, fracture and brittle - ductile transition behaviour. This modelling project will be closely linked to a complementary experimental programme (-750k) funded by UKAEA Culham, whichwillact to guide development of the models and to verify their predictions
Publications (none)
Final Report (none)
Added to Database 01/01/07