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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Phase Transformation Across Multiscale Material Interfaces
Presentation Title Structure and Mechanical Response of Highly Defective Grain Boundaries
Author(s) Diana Farkas
On-Site Speaker (Planned) Diana Farkas
Abstract Scope Molecular Dynamics modeling is utilized to study the structure and mechanical response of highly defective general grain boundaries. Results are presented for two different grain boundary relaxation states. The first resulting from a conventional room temperature relaxation procedure and another one containing additional disorder resulting from local melting and rapid solidification in the GB region. It was found that a large fraction of the boundaries studied contained significant densities of dislocations as part of their structure. The differences in the behavior of the boundaries under applied stress are discussed showing the importance of grain boundary structures on the deformation response of polycrystalline materials.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


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