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Related Experiment Video

Updated: Jul 15, 2026

Picometer-Precision Atomic Position Tracking through Electron Microscopy

Picometer-Precision Atomic Position Tracking through Electron Microscopy

Published on: July 3, 2021

Misorientation mapping for visualization of plastic deformation via electron back-scattered diffraction.

L N Brewer¹, M A Othon, L M Young

¹General Electric Global Research Center, One Research Circle, Niskayuna, NY 12309, USA. lnbrewe@sandia.gov

Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada

|May 8, 2007

Summary

A new method visualizes plastic deformation around microstructural features using electron back-scattered diffraction (EBSD) data. This technique enhances the study of material fatigue and stress corrosion cracking by mapping intragrain misorientation.

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$Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples$

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$Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples$

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Published on: June 19, 2018

Area of Science:

Materials Science
Metallurgy
Mechanical Engineering

Background:

Mapping plastic deformation is crucial for understanding material failure mechanisms like fatigue and stress corrosion cracking.
High strain gradient microstructural features significantly influence material behavior under stress.

Purpose of the Study:

To develop and describe a novel method for visualizing plastic deformation within electron back-scattered diffraction (EBSD) data.
To enable clearer analysis of deformation zones around critical microstructural features.

Main Methods:

The technique involves mapping intragrain misorientation in polycrystalline metals.
An algorithm calculates scalar misorientation relative to a reference pixel within each grain.
Tested on 304 stainless steel with Vickers indentation, fatigue, and stress corrosion cracks.

Main Results:

Successfully visualized plastic deformation zones around microstructural features.
Demonstrated the technique's effectiveness on 304 stainless steel under various conditions.
Standard EBSD data can be utilized for detailed deformation mapping.

Conclusions:

The developed method provides clear visualization of plastic deformation around high strain gradient features.
This technique offers a valuable tool for researchers studying material fatigue and fracture.
Facilitates advanced analysis of material deformation using conventional EBSD data.