EPSRC logo

Details of Grant 

EPSRC Reference: GR/M95431/01
Title: DEFECT MECHANISMS OF PHASE TRANSFORMATIONS
Principal Investigator: Pond, Professor R
Other Investigators:
Fox, Dr P
Researcher Co-Investigators:
Project Partners:
Department: School of Engineering
Organisation: University of Liverpool
Scheme: Standard Research (Pre-FEC)
Starts: 05 June 2000 Ends: 04 October 2003 Value (£): 236,595
EPSRC Research Topic Classifications:
Eng. Dynamics & Tribology Materials Characterisation
EPSRC Industrial Sector Classifications:
No relevance to Underpinning Sectors Aerospace, Defence and Marine
Related Grants:
Panel History:  
Summary on Grant Application Form
This project aims to improve our understanding of phase transformation mechanisms in crystalline materials so that these processes and their impact on engineering materials properties can be predicted quantitatively. The theoretical part of the project will develop a model of transformation processes in terms of line defects in the interface between the transforming regions and the surrounding matrix. This modelling will be based on recent advances made by the applicants regarding the topological character of such line defects. The nucleation and growth of transformed regions will be modelled by linking the atomic-scale topological parameters of line defects to macroscopic descriptions of the resulting deformation and diffusional flux of material. Both displacive and displacive-diffusive transformations will be investigated. The experimental part of the project will obtain direct evidence using transmission electron microscopy of the role of line-defects in phase transformations and compare these observations with predictions of the model. As an example of displacive processes, martensitic transformations in the important shape-memory conditions and chemical composition will be investigated. Displacive-diffusional processes will also be studied in intermatallic alloys such as the gamma-TiAl to alpha2-Ti3Al case.
Key Findings
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Potential use in non-academic contexts
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Impacts
Description This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Summary
Date Materialised
Sectors submitted by the Researcher
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Project URL:  
Further Information:  
Organisation Website: http://www.liv.ac.uk