| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Advances in Ferrous Metallurgy
|
| Presentation Title |
3D Non-destructive Characterization of Texture Evolution in Electrical Steels with Lab-based Diffraction Contrast Tomography |
| Author(s) |
Jun Sun, Florian Bachmann, Jette Oddershede, Hrishikesh Bale, William Harris, Erik Lauridsen |
| On-Site Speaker (Planned) |
William Harris |
| Abstract Scope |
Electrical steels with high Si contents are widely used in electrical power transformers, motors and generators. Texture is the most important property for electrical steel as the orientations of the grains strongly influence the magnetization and electrical resistance of the materials. Lab-based diffraction contrast tomography (LabDCT) is a recently developed X-ray based technique that is able to map the grain morphologies and crystallographic orientations non-destructively in 3D. The recent advancements of LabDCT allows seamless recording and reconstructing large sample volumes that are statistically relevant. In this work, we will present examples of using LabDCT to quantitively characterize the texture of both non-oriented and oriented electrical steels, with the emphasis on tackling challenges such as addressing structural anisotropy in non-oriented electrical steels and mapping out statistically relevant sample volumes for oriented electrical steels after secondary recrystallization. |