| EPSRC Reference: |
GR/M71312/01 |
| Title: |
TRIPARTITE INVESTIGATION OF INTERGRANULAR FRACTURE IN THE TRANSITION REGION OF FERRITIC STEELS (ERCOS) |
| Principal Investigator: |
Crocker, Professor A |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Physics |
| Organisation: |
University of Surrey |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 May 1999 |
Ends: |
30 September 2002 |
Value (£): |
142,873
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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Summary on Grant Application Form |
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Theoretical research at Surrey, sponsored by Magnox Electric, has investigated the proportion of grain boundary fracture which occurs when steels fail in a brittle manner. The work has consistently predicted much larger amounts of intergranular failure than is observed experimentally. This led to discussions with Professor John Knott of Birmingham and Dr Valerie Randle of Swansea which established that a programme of integrated theoretical and experimental research on the mechanisms of fracture of polycrystalline materials was needed. The present tri-partite ERCOS proposal, supported by BNFL Magnox Generation, is the outcome of this conclusion. The work at Surrey will be as follows: (a) Develop models of poly-crystals used in the past so that they provide a more realistic representation of steels. In particular use large groups of 3-d distorted grains, rather than 2-d models or 3-d models with a few regular grains. (b) Use ranges of energy for cleavage, grain boundary and ductile fracture and local plasticity. Explore changes of grain boundary energy arising from segregation of impurities. (c) Investigate the role of precipitate particles and cavities in the nucleation of cracks. (d) Develop methods of geometrical and statistical analysis and computer modelling routines necessary for the above research.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.surrey.ac.uk |