| Strain Induced Precipitation of Nb(CN) during Multipass Hot Deformation of Austenite |
| Mr V Nagarajan, PhD Student, October 2004 - 36 months, IMMPETUS EPSRC Core Project A1 |
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Supervisor: Dr E J Palmiere
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This project will extend the current understanding of the effect of alloy composition and strain-induced precipitation on the recrystallisation behaviour of austenite. In so doing, it builds from the previous project 1.1b, extending the scope to look at the effects of other microalloy additions (V, Ti in addition to Nb) for both model and conventional C-Mn based microalloyed steels. It also seeks to address the influence of solute segregation on the length scale experienced during thermomechanical processing.
Sponsored by: Niobium Products Company/Department of Engineering Materials, University of Sheffield
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| Effect of strain and strain rate history on subgrain size distribution and subsequent Recrystallisation |
| Ms M Lopez-Pedrosa, Research Associate, August 2006 - 15 months, IMMPETUS EPSRC Core Project A |
| Supervisors: Dr B P Wynne & Prof W M Rainforth |
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Project A2 intends to consolidate and extend a number of concepts generated from IMMPETUS Core and Related projects on the effects of strain path on microstructure and crystallographic texture evolution. The aim being to develop generic strain path sensitive physically-based models for microstructure evolution during thermomechanical processing. A variety of single and dual phase alloys will be used for this task.
Sponsored by: EPSRC
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| Variation of Local Strain Conditions in Single Phase and Duplex Structure |
| Ms Z Zhu, PDRA, 1.4.2006-31.7.2007+ Mr H Ghadbeigi, PGRA, 1.10.2006-31.07.2007 + Ms M Lopez-Pedrosa, PDRA, 1.08.2006-31.7.2007 + Mr L Sun, final year student MEng Metallurgy, 1.10.2006-31.5.2007 |
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IMMPETUS Core Project A3, Supervisors: Dr C Pinna, Prof W M Rainforth & Dr E J Palmiere
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Project 1.5 of the previous grant has led to the development of a microgrid technique capable of measuring the intra-granular deformation of duplex stainless steels deformed at 1000oC. Deformation maps drawn over large areas of microstructures have been obtained through collaboration with Ecole Polytechnique in France. This technique will be applied in project A3 to the deformation of both single-phase alloys (Fe-30Ni alloy, Al alloys and IF steels) and duplex alloys of ferrite and austenite, and of partially recrystallised austenite. Effect of local deformation and grain boundary sliding on microstructure evolution will be investigated.
Sponsored by: EPSRC
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SURFACE STATES
Roll-stock interface behaviour
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| Dr M Krzyzanowski, Research Fellow, August 2002 60 months, IMMPETUS EPSRC Core Project B1 |
| Investigator: Prof W M Rainforth |
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Sponsored by:
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Oxide scales on stainless steel and non-ferrous alloys
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Dr M F Frolish, Research Associate, August 2002 - 60 months IMMPETUS EPSRC Core Project B3
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Investigator: Prof W M Rainforth
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Sponsored by:
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A critical assessment of the hot working of magnesium AZ31 alloy
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| Mr R. Bhattacharya, PhD Student January 2006-36 Months |
| Supervisors: Dr B P Wynne, Prof W M Rainforth & Dr B Davis (Magnesium Elektron) |
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Sponsored by: EPSRC
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| Control and prediction of direct metal deposition (DMD) microstructures and properties |
| Mr R J Deffley, PhD student, February 2006 36 months |
| Supervisors: Dr I Todd & Prof K Ridgway (AMRC) |
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Sponsored by: EPSRC and TWI
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Interactions of Exogenous Inclusions in Liquid Steels with Submerged Entry Nozzle Material
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| Mr A Dey, PhD student, October 2005 for- 22 months |
| Supervisor: Dr R Thackray |
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Sponsored by: Dorothy Hodgkin Postgraduate Award
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Roll oxide phenomena in hot strip mills
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| Mr N .Garza-Montes-de-Oca. PhD student October 2004, 36 months |
| Supervisors: Prof W M Rainforth |
| Sponsored by: CONACyT Mexico |
Metal cutting mechanics: Micro Macro strategies
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| Mr H Ghadbeigi, PhD student January 2006 - 36 Months |
| Supervisors: Dr S R Bradbury, Dr C Pinna, Prof J R Yates |
| Sponsored by: IMMPETUS, self-funded |
Hot Deformation of Nickel-based Superalloys
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| Mr O Latinwo, PhD student October 2005 - 36 Months |
| Supervisors: Dr B P Wynne, Prof W M Rainforth, Dr S Lillywhite (Firth Rixson) & Dr M F Abbod (Brunel University) |
| Sponsored by: EPSRC |
| Microstructure and texture evolution of titanium 6-2-4-6 |
| Mr N Nasseri, PhD Student, October 2005 36 months |
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Supervisors: Dr B P Wynne, Prof W M Rainforth & Dr A Wilson (Timet UK)
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| Sponsored by: EPSRC |
Modelling the mechanical behaviour of austenitic-ferritic stainless steels deformed at high temperature
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| Mr N Rupin, PhD student September 2004 - 36 Months. |
| Supervisors: Dr M Bornert, Prof A. Zaoui (Ecole Polytechnique), Prof P Gilormini (ENSAM-Paris) & Dr C Pinna |
| Sponsored by: Ecole Polytechnique |
| Experimental study of the effect of B additions on phase equilibria and properties of Nb silicide based alloys |
| Mr T Thandorn, PhD student, October 2005 36 months |
| Supervisor: Prof P Tsakiropoulos |
| Sponsored by: Royal Thai Government |
| Development of Nb base alloys for structural applications at high temperatures |
| Mr E Zacharis, PhD student, January 2006 36 months |
| Supervisor: Prof P Tsakiropoulos |
| Sponsored by: EPSRC |
SYSTEM STATES
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A Concurrent approach to Manufacturing induced Part distortion in Aerospace ComponenTs (Compact)
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Dr S Boumaiza, Research Associate November 2006 24 Months.
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| Supervisors: Dr C Pinna, Dr R J Greene, Prof J R Yates & Prof M Mahfouf |
| Funded by: European Union. |
Model-based Control and Optimisation of a Experimental Laboratory-scale Hot-Rolling Mill using Intelligent Systems-based Paradigms
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| Mr M A Gama, Research Student. October 2004 -34 months |
| Supervisor: Prof M Mahfouf |
| Sponsored by: CONACyT-Mexico |
| Biologically Inspired Optimization Algorithms for Transparent knowledge Extraction Allied to Engineering Materials Processing |
| Mr. Jun Chen, PhD student October 2005 - 36 Months. |
| Supervisors: Prof M Mahfouf |
| Sponsored by: University Fee Waiver and IMMPETUS |
| Fatigue behaviour of an aluminium alloy 2618 used in a turbocharger compressor wheel. |
Ms A Salas-Zamarripa, PhD student October 2003 - 48 Months.
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Supervisors: Dr C Pinna & Prof M W Brown
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| Sponsored by: CONACyT-Mexico and Cummins Turbo Technologies. |
| Self-organising based modelling and optimisation for materials properties. |
| Mr Q Zhang, PhD Student, October 2004 36 months |
| Supervisor: Prof M Mahfouf |
| Sponsored by: The University of Sheffield and IMMPETUS. |
INTEGRATION
| D3: CAFE Modelling |
| Dr M F Abbod & Dr T Wang, July 2005 -24 Months. |
| Supervisors: Prof M Mahfouf & Prof D A Linkens |
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There is considerable potential for the combination of Cellular Automata and FE techniques as an interpretative and predictive tool for microstructure evolution. Its application to surface states modelling lies in its ability to describe a wide range of forming behaviours, and its application to internal states is again very rich, but presently it can be done in two dimensions only. The development into the fundamentally important 3-D mode requires significant research effort, which will be conducted in collaboration with Monash University. However, other modelling techniques, such as Phase Field Theory, will also be investigated for their suitability for the modelling of the various states. It is the solution of these problems, rather than the techniques themselves, that is our focus.
Sponsored by: EPSRC
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