About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing Modeling, Simulation and Machine Learning
|
Presentation Title |
Hardness Predictions of Additively Manufactured Components Using Convolutional Neural Networks on Backscattered Electron Images |
Author(s) |
Dillon Watring, Patrick G Callahan, David J Rowenhorst |
On-Site Speaker (Planned) |
Dillon Watring |
Abstract Scope |
Additive manufactured (AM) components have heterogenous microstructure due to variations in thermal histories. Understanding the correlation between these microstructures and mechanical properties are important to qualification and critical use. While hardness tests are a standard technique used to rapidly assess the mechanical properties of a material, many tests are needed to capture the variations in properties due to the fluctuations within the processing/microstructure. Convolutional neural networks (CNNs) allow unique feature identification and extraction from images that are difficult for trained experts to detect, which allows prediction of regression values based solely on images. This work provides a non-destructive alternative for hardness prediction by leveraging CNNs to predict hardness from backscattered electron (BSE) images. The study evaluates the CNN model’s predictive performance using nickel aluminum bronze (NAB) samples, and investigates and identifies microstructural feature importance in governing hardness across different length scales. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Machine Learning, Mechanical Properties |