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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium The John Cahn Memorial Symposium
Presentation Title Molecular Dynamics Simulations of Faceted, Incoherent Twin Boundaries
Author(s) Elizabeth Holm, Jonathan Humberson
On-Site Speaker (Planned) Elizabeth Holm
Abstract Scope Although John Cahn was known primarily as a materials theorist, he was an early adopter of computational modeling as a tool to gain insight into physical phenomena. Collaborating with a number of computational scientists and applied mathematicians, John was particularly invested in phase field models (based of course on the Cahn-Hilliard and Allen-Cahn models) and in molecular dynamics simulations (mainly for grain boundary and dislocation physics). In this talk, we will present a few results from molecular dynamics simulations that we think might have interested John. In particular, we will discuss how two sets of Shockley partial dislocations, with the same Burgers vectors, gliding on the same plane under the same physical conditions, can evince fundamentally different temperature dependence of motion. The results elucidate the thermal behavior of faceted, incoherent twin boundaries.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A DSC Model for Grain Boundary Migration and Properties
Beyond the Gorsky Effect – Exploring Larché-Cahn Open System Elasticity in Experiment
Dislocations, Trijunctions and Grain Rotation
Energetic Trends for Twin Boundaries in HCP Metals
Experimental Measures of Stress-coupled Boundary Migration and the Attendant Mechanical Behavior of Nanocrystalline Films
How Some Quasicrystals Might Grow
John Cahn's Boss, Really?
John Cahn and Aesthetics of Materials
Molecular Dynamics Simulations of Faceted, Incoherent Twin Boundaries
Phase Transition and Anomalous Diffusion in Metastable β Ti-Mo
Quasi-history of Quasi-crystallinity
Thin Film Grain Growth for Twin Related Orientations of Grains

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