About this Abstract |
Meeting |
TMS Specialty Congress 2025
|
Symposium
|
The 7th International Congress on 3D Materials Science (3DMS 2025)
|
Presentation Title |
3D Large Volume Non-Destructive Grain Structure Characterization in Metallic Alloys Using Lab-Based Diffraction Contrast Tomography (LabDCT) |
Author(s) |
Kaushik Yanamandra, Nathan S Johnson, Hrishikesh Bale, Jette Oddershede, Jun Sun |
On-Site Speaker (Planned) |
Kaushik Yanamandra |
Abstract Scope |
The grain boundary(GB) are essential information to analyze grain boundary related behaviors such as preferential precipitation or intergranular cracking in polycrystalline materials. Accessing the necessary parameters to describe a GB on the mesoscopic scale is beyond the reach of 2D characterization techniques and is only achievable through a 3D approach. With the capability to map the grain morphology and crystallographic orientation non-destructively in 3D, lab-based diffraction contrast tomography (DCT) using X-rays provides the necessary information to analyze the crystallographic parameters describing grain boundaries on the mesoscopic scale, including grain boundary misorientation angle/axis and plane inclination. In this work, we will present the results of using lab-based DCT to investigate the grain boundary characters in polycrystalline materials including ceramic examples, with further discussion of how the grain boundary properties are related to grain boundary behaviors such as grain boundary wetting and cracking. |
Proceedings Inclusion? |
Undecided |