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An automated three-dimensional internal structure observation system based on high-speed serial sectioning of steel materials

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Title: An automated three-dimensional internal structure observation system based on high-speed serial sectioning of steel materials
Authors: Fujisaki, Kazuhiro Browse this author →KAKEN DB
Yamashita, Norio Browse this author
Yokota, Hideo Browse this author
Keywords: Serial sectioning
Precision cutting
Ultrasonic vibration
Inclusions
Three-dimensional model
Bearing steel
Issue Date: Apr-2012
Publisher: Elsevier
Journal Title: Precision Engineering
Volume: 36
Issue: 2
Start Page: 315
End Page: 321
Publisher DOI: 10.1016/j.precisioneng.2011.12.001
Abstract: For three-dimensional observation of the internal structure of hard materials, we developed an automated system based on serial sectioning with precision cutting and optical microscopy. The elliptical vibration cutting device in the system created mirrored surfaces suitable for optical microscopy during the serial sectioning of steel materials. In this study, high-speed sectioning with several micron thickness and repeated precise machining to depths of up to around 1 mm were achieved with a flat-edge cutting tool. For a 3 x 3 mm area of bearing steel, a mirrored surface could be created in about 1 minute, and 400 serial sectioning images were obtained within 7 hours without additional machining processes such as cleaning or changing of tools. The three-dimensional shapes and positions of continuously distributed inclusions found deep within the bearing steels, as well as cracks originating from these inclusions, could be detected with resolutions as high as 80 x 80 nm and in a wide field of view using this system.
Type: article (author version)
URI: http://hdl.handle.net/2115/49088
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 藤﨑 和弘

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