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Real-time microstructure imaging by Laue microdiffraction: A sample application in laser 3D printed Ni-based superalloys

Synchrotron-based Laue microdiffraction has been widely applied to characterize the local crystal structure, orientation, and defects of inhomogeneous polycrystalline solids by raster scanning them under a micro/nano focused polychromatic X-ray probe. In a typical experiment, a large number of Laue...

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Autores principales: Zhou, Guangni, Zhu, Wenxin, Shen, Hao, Li, Yao, Zhang, Anfeng, Tamura, Nobumichi, Chen, Kai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4908403/
https://www.ncbi.nlm.nih.gov/pubmed/27302087
http://dx.doi.org/10.1038/srep28144
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author Zhou, Guangni
Zhu, Wenxin
Shen, Hao
Li, Yao
Zhang, Anfeng
Tamura, Nobumichi
Chen, Kai
author_facet Zhou, Guangni
Zhu, Wenxin
Shen, Hao
Li, Yao
Zhang, Anfeng
Tamura, Nobumichi
Chen, Kai
author_sort Zhou, Guangni
collection PubMed
description Synchrotron-based Laue microdiffraction has been widely applied to characterize the local crystal structure, orientation, and defects of inhomogeneous polycrystalline solids by raster scanning them under a micro/nano focused polychromatic X-ray probe. In a typical experiment, a large number of Laue diffraction patterns are collected, requiring novel data reduction and analysis approaches, especially for researchers who do not have access to fast parallel computing capabilities. In this article, a novel approach is developed by plotting the distributions of the average recorded intensity and the average filtered intensity of the Laue patterns. Visualization of the characteristic microstructural features is realized in real time during data collection. As an example, this method is applied to image key features such as microcracks, carbides, heat affected zone, and dendrites in a laser assisted 3D printed Ni-based superalloy, at a speed much faster than data collection. Such analytical approach remains valid for a wide range of crystalline solids, and therefore extends the application range of the Laue microdiffraction technique to problems where real-time decision-making during experiment is crucial (for instance time-resolved non-reversible experiments).
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spelling pubmed-49084032016-06-15 Real-time microstructure imaging by Laue microdiffraction: A sample application in laser 3D printed Ni-based superalloys Zhou, Guangni Zhu, Wenxin Shen, Hao Li, Yao Zhang, Anfeng Tamura, Nobumichi Chen, Kai Sci Rep Article Synchrotron-based Laue microdiffraction has been widely applied to characterize the local crystal structure, orientation, and defects of inhomogeneous polycrystalline solids by raster scanning them under a micro/nano focused polychromatic X-ray probe. In a typical experiment, a large number of Laue diffraction patterns are collected, requiring novel data reduction and analysis approaches, especially for researchers who do not have access to fast parallel computing capabilities. In this article, a novel approach is developed by plotting the distributions of the average recorded intensity and the average filtered intensity of the Laue patterns. Visualization of the characteristic microstructural features is realized in real time during data collection. As an example, this method is applied to image key features such as microcracks, carbides, heat affected zone, and dendrites in a laser assisted 3D printed Ni-based superalloy, at a speed much faster than data collection. Such analytical approach remains valid for a wide range of crystalline solids, and therefore extends the application range of the Laue microdiffraction technique to problems where real-time decision-making during experiment is crucial (for instance time-resolved non-reversible experiments). Nature Publishing Group 2016-06-15 /pmc/articles/PMC4908403/ /pubmed/27302087 http://dx.doi.org/10.1038/srep28144 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Zhou, Guangni
Zhu, Wenxin
Shen, Hao
Li, Yao
Zhang, Anfeng
Tamura, Nobumichi
Chen, Kai
Real-time microstructure imaging by Laue microdiffraction: A sample application in laser 3D printed Ni-based superalloys
title Real-time microstructure imaging by Laue microdiffraction: A sample application in laser 3D printed Ni-based superalloys
title_full Real-time microstructure imaging by Laue microdiffraction: A sample application in laser 3D printed Ni-based superalloys
title_fullStr Real-time microstructure imaging by Laue microdiffraction: A sample application in laser 3D printed Ni-based superalloys
title_full_unstemmed Real-time microstructure imaging by Laue microdiffraction: A sample application in laser 3D printed Ni-based superalloys
title_short Real-time microstructure imaging by Laue microdiffraction: A sample application in laser 3D printed Ni-based superalloys
title_sort real-time microstructure imaging by laue microdiffraction: a sample application in laser 3d printed ni-based superalloys
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4908403/
https://www.ncbi.nlm.nih.gov/pubmed/27302087
http://dx.doi.org/10.1038/srep28144
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