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Title: ADVANCED-STEM-BASED DEEP LEARNING FOR SEMANTIC SEGMENTATION OF DEFECTS IN STEELS

Abstract

In this work, we developed a novel deep convolutional neural network (DCNN) model, called DefectNet, for robust and automated semantic segmentation of three crystallographic defects including line dislocations, precipitates and voids commonly observed in structural metals and alloys. In previous work, we established an experimental protocol for a diffraction contrast imaging scanning transmission electron microscopy (DCI STEM) technique and tailored it specifically for imaging defects in popular iron-based structural alloy. Thus, the DefectNet was trained over a small but high-quality DCI STEM defect image sets of a HT-9 martensitic steel before and after neutron irradiation for 111.8 dpa at 412°C. For the defect quantification that typically takes at least half an hour even for an expert, with a good model the machine learning algorithm can produce more reproducible and reliable quantification in a few seconds. This work demonstrates the feasibility of using deep learning algorithms for fast and accurate defect quantitative analysis.

Authors:
 [1];  [2];  [1];  [3]; ORCiD logo [2];  [2];  [2]; ORCiD logo [2]
  1. University of Connecticut
  2. BATTELLE (PACIFIC NW LAB)
  3. WESTERN WASHINGTON UNIVERSITY
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1569022
Report Number(s):
PNNL-SA-141280
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Book
Country of Publication:
United States
Language:
English
Subject:
Machine Learning, Radiation effects, Image analysis, semantic segmentation

Citation Formats

Zhu, Yuanyuan, Roberts, Graham W., Sainju, Rajat, Hutchinson, Brian J., Kurtz, Richard J., Toloczko, Mychailo B., Edwards, Danny J., and Henager, Charles H. ADVANCED-STEM-BASED DEEP LEARNING FOR SEMANTIC SEGMENTATION OF DEFECTS IN STEELS. United States: N. p., 2019. Web.
Zhu, Yuanyuan, Roberts, Graham W., Sainju, Rajat, Hutchinson, Brian J., Kurtz, Richard J., Toloczko, Mychailo B., Edwards, Danny J., & Henager, Charles H. ADVANCED-STEM-BASED DEEP LEARNING FOR SEMANTIC SEGMENTATION OF DEFECTS IN STEELS. United States.
Zhu, Yuanyuan, Roberts, Graham W., Sainju, Rajat, Hutchinson, Brian J., Kurtz, Richard J., Toloczko, Mychailo B., Edwards, Danny J., and Henager, Charles H. Fri . "ADVANCED-STEM-BASED DEEP LEARNING FOR SEMANTIC SEGMENTATION OF DEFECTS IN STEELS". United States.
@article{osti_1569022,
title = {ADVANCED-STEM-BASED DEEP LEARNING FOR SEMANTIC SEGMENTATION OF DEFECTS IN STEELS},
author = {Zhu, Yuanyuan and Roberts, Graham W. and Sainju, Rajat and Hutchinson, Brian J. and Kurtz, Richard J. and Toloczko, Mychailo B. and Edwards, Danny J. and Henager, Charles H.},
abstractNote = {In this work, we developed a novel deep convolutional neural network (DCNN) model, called DefectNet, for robust and automated semantic segmentation of three crystallographic defects including line dislocations, precipitates and voids commonly observed in structural metals and alloys. In previous work, we established an experimental protocol for a diffraction contrast imaging scanning transmission electron microscopy (DCI STEM) technique and tailored it specifically for imaging defects in popular iron-based structural alloy. Thus, the DefectNet was trained over a small but high-quality DCI STEM defect image sets of a HT-9 martensitic steel before and after neutron irradiation for 111.8 dpa at 412°C. For the defect quantification that typically takes at least half an hour even for an expert, with a good model the machine learning algorithm can produce more reproducible and reliable quantification in a few seconds. This work demonstrates the feasibility of using deep learning algorithms for fast and accurate defect quantitative analysis.},
doi = {},
url = {https://www.osti.gov/biblio/1569022}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {3}
}

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