| Grant number: | 10/13902-4 |
| Support Opportunities: | Scholarships in Brazil - Master |
| Effective date (Start): | March 01, 2011 |
| Effective date (End): | July 31, 2013 |
| Field of knowledge: | Physical Sciences and Mathematics - Physics - Condensed Matter Physics |
| Principal Investigator: | Maurice de Koning |
| Grantee: | Rodrigo Moura Freitas |
| Host Institution: | Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil |
| Associated scholarship(s): | 11/23568-7 - Kinetics of martensitic phase transitions, BE.EP.MS |
Abstract The objective of this Master Thesis project is the study, through the methods of computational physics, of thermodynamic and kinetic aspects of martensitic phase transitions in metallic alloys.In relation to thermodynamic properties we will be particularly interested in investigating the influence of the composition of alloys on the transition temperatures. This is achieved by using the Reversible Scaling method, which allows the determination of the free energy (Helmholtz or Gibbs) as function of temperature from a single Monte Carlo or molecular dynamics simulation at constant temperature.Regarding the the kinetics of the transitions, we will perform a series of molecular dynamics simulations to directly observe the occurrence of martensitic phase transitions. In this part we are particularly interested in the role played by defects present in the crystal. An important question in this context involves the structural evolution of dislocations, the linear defects responsible for plastic deformation of crystalline solids, along a martensitic phase transition. | |
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