About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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AI/Data Informatics: Computational Model Development, Verification, Validation, and Uncertainty Quantification
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Presentation Title |
Machine Learning-guided Investigation of the Impacts of Grain Geometry on Twin Formation in MgY Alloys |
Author(s) |
Peter Mastracco, Kehang Yu, Xin Wang, Julie Schoenung, Enrique Lavernia, Stacy Copp |
On-Site Speaker (Planned) |
Peter Mastracco |
Abstract Scope |
Magnesium is an earth-abundant, lightweight metal of interest for structural applications. However, applications of Mg and its alloys are limited by poor strength and ductility. Twinning provides a promising approach to improve overall strength and ductility of Mg alloys. Currently, there is a limited understanding of the experimental factors that impact formation of twins through mechanical means. In this study, we aim to enhance our knowledge by exploring the relationship between grain geometry and twinning. We utilize supervised machine learning techniques to analyze a substantial dataset obtained from electron backscatter diffraction of MgY alloys. We train random forest classifiers to predict twin formation given input information about grain morphology, local environment, and sheer force. Then, feature selection methods are used to identify the parameters most important for determining twin formation. This study provides key insights into twin formation in Mg alloys and may guide efforts to control Mg alloy microstructure. |
Proceedings Inclusion? |
Planned: |
Keywords |
Machine Learning, Computational Materials Science & Engineering, Magnesium |