About this Abstract |
Meeting |
TMS Specialty Congress 2025
|
Symposium
|
3rd World Congress on Artificial Intelligence in Materials & Manufacturing (AIM 2025)
|
Presentation Title |
Transfer Learning for Ultrasonic Crystallography: Accelerating Orientation Mapping in Materials With Neural Networks |
Author(s) |
Rikesh Patel, Wenqi Li, Richard Smith, Matt Clark |
On-Site Speaker (Planned) |
Rikesh Patel |
Abstract Scope |
In determining the crystallographic orientation using ultrasound measurements, brute force search algorithms are used to match measured surface acoustic wave phase velocities to crystallographic orientation. This process can take hours as it is computationally intensive. We introduce a method to transfer train neural networks using calculated surface acoustic wave (SAW) phase velocities to rapidly determine crystallographic orientations. For demonstration, a model has been trained using nickel SAW phase velocities, which achieved 93.6% in validation accuracy, and applied it to classify the planes on Inconel 617 and CMX4 polycrystalline alloys. Measurements were made using the laser ultrasound technique Spatially Resolved Acoustic Spectroscopy (SRAS) and full orientation maps were achieved on 1.4Mpixels in 16 seconds, compared with the brute force searching method that requires roughly 10 hours. This method aims to be a transformative tool for materials discovery by providing near real-time microstructural insights. |
Proceedings Inclusion? |
Undecided |