About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
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ICME Gap Analysis in Materials Informatics: Databases, Machine Learning, and Data-Driven Design
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Presentation Title |
Improved Performance of Automatic Characterization of Steel Microstructure by Machine Learning Architecture |
Author(s) |
Jonghyuk Lee, Seonghwan Kim, Nam Hoon Goo |
On-Site Speaker (Planned) |
Jonghyuk Lee |
Abstract Scope |
The microstructure of steel is a significant factor in determining the performance of the material. Despite this importance, it is still challenging to quantitatively and systematically interpret the microstructure due to the multiple phase changes and the various precipitates. The manual classification of the microstructural images, which vary widely depending on the alloying elements and the process conditions, has limitation in reproducibility and accuracy. Recent studies show that the machine learning algorithm like FCN (Fully Convolutional Network) with the featured segmentation has excellent performance over 90% match. We have implemented a machine learning approach in the analysis of steel microstructures. We have analyzed the microstructure of steel using FCN and Pix neural networks, which are recently known to show excellent performance, and compared the results of two neural networks. The approach eliminates uncertainty due to human error, and the analysis results reflect realistic mechanical properties of actual steel material. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |