Please use this identifier to cite or link to this item:
http://hdl.handle.net/11375/13989
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Provatas, Nikolas | en_US |
dc.contributor.advisor | Hoyt, Jeff J. | en_US |
dc.contributor.advisor | Zurob, Hatem | en_US |
dc.contributor.author | Humadi, Harith | en_US |
dc.date.accessioned | 2014-06-18T17:05:50Z | - |
dc.date.available | 2014-06-18T17:05:50Z | - |
dc.date.created | 2014-03-10 | en_US |
dc.date.issued | 2014-04 | en_US |
dc.identifier.other | opendissertations/8822 | en_US |
dc.identifier.other | 9904 | en_US |
dc.identifier.other | 5312214 | en_US |
dc.identifier.uri | http://hdl.handle.net/11375/13989 | - |
dc.description.abstract | <p>Free solidification molecular dynamics simulations were used to study solute trapping behaviour in the Ni-Cu alloy system. The segregation coefficient, K, as a function of crys- tallization rate was compared with several theories of trapping and, in agreement with a model proposed by Sobolev, it was found that complete trapping (K=1) occurs at a finite velocity. In order to gain further insight into the thermodynamic and kinetic factors affect- ing solute trapping, forced velocity phase field crystal (PFC) simulations were performed on a model binary alloy. We find that the complete trapping limit only occurs if a com- bination of wave-like and diffusive dynamics equation of motion of the PFC alloy model. Finally, an amplitude expansion analysis of the PFC formulation for constant velocity so- lidification was performed and an analytic expression for the complete trapping limit and solute drag was obtained.</p> | en_US |
dc.subject | Rapid Solidification | en_US |
dc.subject | Computational Engineering | en_US |
dc.subject | Metallurgy | en_US |
dc.subject | Other Materials Science and Engineering | en_US |
dc.subject | Computational Engineering | en_US |
dc.title | Modelling Rapid Solidification Using Atomistic and Continuum Methods | en_US |
dc.type | dissertation | en_US |
dc.contributor.department | Materials Science and Engineering | en_US |
dc.description.degree | Doctor of Philosophy (PhD) | en_US |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
There are no files associated with this item.
Items in MacSphere are protected by copyright, with all rights reserved, unless otherwise indicated.