About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
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Symposium
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Characterization: Structural Descriptors, Data-Intensive Techniques, and Uncertainty Quantification
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Presentation Title |
Basis Functions for Quantifying Grain Boundary Texture in Polycrystalline Microstructures |
Author(s) |
Srikanth Patala, Jeremy K Mason |
On-Site Speaker (Planned) |
Srikanth Patala |
Abstract Scope |
The statistical distributions of different grain boundary types play an important role in governing the mechanical and functional properties of polycrystalline materials. However, even for simple microstructures, the capability of representing the distributions of GB character, as a function of the five macroscopic degrees of freedom, has not been established. As the GB character distributions directly influence the interfacial network connectivity, developing a framework for quantifying the statistics in the five-parameter space is a crucial missing step in the inverse-design of interface-dominated phenomena in polycrystalline systems. In this talk, I will present symmetrized functions, using the familiar hyperspherical harmonics, for representing grain boundary texture in the complete five-parameter space. The basis functions will also allow for the quantification of interfacial statistics in experimental microstructures and the interpolation of structure-property relationships of grain boundaries. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |