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Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Recent Advances in Electron Back-Scattered Diffraction and Related Techniques
Presentation Title Application of a Differential Evolution Optimization Algorithm on Deformation Extraction from EBSD Patterns
Author(s) Crestienne Alexandra DeChaine, Ann Choi, Katharina Tinka Marquardt, Marc J. De Graef
On-Site Speaker (Planned) Crestienne Alexandra DeChaine
Abstract Scope We report on the quantification of residual stresses in additively manufactured (AM) 316L stainless steel via Electron Backscatter Diffraction (EBSD) using a combination of the dictionary indexing approach and a differential evolution algorithm to extract both a refined pattern center and the deformation tensor from the patterns. The determination of residual stress distributions in AM parts is essential for obtaining an understanding of the influence of manufacturing parameters on the thermal shrinkage and expansion in a constrained geometry. Furthermore, the information gained about the residual stress can be used to optimize the manufacturing parameters to minimize the residual stress. Initial algorithm validation was carried out using an EBSD data set collected from a nano-indented silicon sample. The result of both the silicon and the 316L steel analyses were then compared to a similar analysis using the OpenXY package.
Proceedings Inclusion? Planned:
Keywords Characterization, Modeling and Simulation, Additive Manufacturing


A Multi-generational Study of Detectors for Use in Cross-correlation-based EBSD: From Scintillators to Direct Detection
Accelerating Dictionary Indexing with Principal Component Analysis
Application of a Differential Evolution Optimization Algorithm on Deformation Extraction from EBSD Patterns
Applications of 3D EBSD for Understanding Complex Microstructures
Challenges and Prospects of TKD for Nanocrystalline Materials Characterization
Cross-sectional Electron Channeling Contrast Imaging
Enhanced SEM-based Electron Diffraction Analyses Using Intelligent Hybrid Pattern Matching
Exploring New Capabilities in Electron Backscattered Diffraction Using Direct Electron Detectors
Extraction of Defect Images by Post-processing of EBSD Patterns
Fast Forward Model Indexing: Theory and Application
Kikuchipy: An Open-Source Toolbox for Analysis of EBSD Patterns
Micro-analysis of δ-hydrides in Pure Zirconium by HR-EBSD and TKD
Microstructural Evolution Revealed by EBSD in Aluminum Alloys After Severe Plastic Deformation
Phase Differentiation in Half- and Full-Heusler Composites Using EBSD
Phase Distinction of Ordered Intermetallic Phases Using EBSD
Spherical Indexing Based on Dictionary Indexing Applied to Overlapping Pattern of Low-scattering Forsterite Due to Small Grain Sizes
The Use of NLPAR in the Analysis of Low Misorientation Gradients
Toward Correlative Grain Boundary Analysis in CIGS

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