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Details of Grant 

EPSRC Reference: GR/T09354/01
Title: Solid-Solid Phase Transformation Modelling
Principal Investigator: Edmonds, Professor DV
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department: Institute of Materials Research
Organisation: University of Leeds
Scheme: Standard Research (Pre-FEC)
Starts: 01 May 2004 Ends: 31 December 2004 Value (£): 18,040
EPSRC Research Topic Classifications:
Materials Characterisation
EPSRC Industrial Sector Classifications:
Manufacturing
Related Grants:
Panel History:  
Summary on Grant Application Form
a) The development of a kinetic model of the graphitisation process in steels, involving both the dissolution of the cementite, as well as the growth of the graphite, will be attempted. This will require the use of appropriate software, and DICTRA, which uses Thermo-Calc for the provision of local equilibrium in the calculation of diffusion kinetics.b) An innovative heat treatment process to be studied by CSM, PUC-Rio and Leeds, termed quenching and partitioning or Q&P, is based on a new thermodynamic model that has been developed by CSM to explain carbon partitioning between martensite and retained austenite. The model indicates that substantial carbon enrichment of austenite may be achieved by careful control of the martensite transformation and subsequent partitioning behavior. Whilst in Leeds, Professor Rizzo will initiate a complementary programme to model quantitatively various aspects critical to understanding the carbon partitioning involved in the heat treatment process eg carbon partitioning kinetics in different starting microstructures, cementite and transition carbide precipitation kinetics in different alloy compositions, effects of dislocation trapping and other factors influencing carbon activity. This part of the work will relate closely to proposed characterisation studies of the Leeds partner.c) Professor Rizzo has expertise in corrosion and will become involved in a project seeking to elucidate the role of microstructure and steel composition, particularly that of alloying additions such as Cr and V, in relation to the steel processing, in order to improve the corrosion resistance of carbon steel in C02 environments. These objectives will be achieved by a systematic study of the relationships between steel composition and the key factors controlling local surface chemistry in order to offer a coherent interpretation of the, as yet inexplicable, variability of corrosion rate in C02 environments.d) Professor Rizzo will visit Materials Departments at the universities of Birmingham, Cambridge, Sheffield and Swansea, and will be prepared to offer seminars on his research programmes at PUCRio.
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Organisation Website: http://www.leeds.ac.uk