Beyond the Scope: EBSD – Transforming Kikuchi Patterns into Useful Data

EBSD – Transforming Kikuchi Patterns into Useful Data

All dates for this event occur in the past.

CEMAS – Digital Theater
1305 Kinnear Rd
Suite 100
Columbus, OH 43212
United States

Join Steve Niezgoda, associate professor in the departments of Materials Science & Engineering and in Mechanical & Aerospace Engineering, on EBSD – Transforming Kikuchi Patterns into Useful Data for our Beyond the Scope: CEMAS Discussion Series. 

CEMAS will offer this session both virtually and in person. Please indicate if you're planning to attend in person when prompted during registration. You will still receive a link to the webinar via Zoom if your plans change. 

Topic:
EBSD – Transforming Kikuchi Patterns into Useful Data

About:
Electron Backscatter Diffraction (EBSD) has become a standard technique for the imaging and characterization of polycrystalline materials. While most EBSD users have at least a basic understanding of the physics of electron diffraction in the SEM, very few actually understand that process of how Kikuchi patterns are indexed to determine the crystal orientation and how useful descriptions of orientations in polycrystals such as pole figures and orientation distribution functions are computed. In this talk, we will literally go beyond the scope and discuss the computational side of EBSD analysis. In the first part I will look at the standard pipeline of EBSD analysis and discuss how patterns are indexed and orientation analysis is performed and how statistical distributions are calculated in OEM software packages. In the second part I will look at more advanced offline techniques are preformed including high-resolution EBSD or cross-correlation EBSD as well as dictionary indexing and spherical harmonic indexing of Kikuchi patterns. I will finish with a discussion of what I believe are the limitations of our current analysis procedures and some directions for future research.

Date:
Friday, April 28, 2023, 11:30 a.m. - 12:30 p.m.

Presented By:
Steve Niezgoda, associate professor in the departments of Materials Science & Engineering and in Mechanical & Aerospace Engineering

Register:
https://osu.zoom.us/webinar/register/WN__uMoPGVgRTCF5RvlyNbVVw