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Inverse pole figure mapping of bulk crystalline grains in a polycrystalline steel plate by pulsed neutron Bragg-dip transmission imaging

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/68147

Title: Inverse pole figure mapping of bulk crystalline grains in a polycrystalline steel plate by pulsed neutron Bragg-dip transmission imaging
Authors: Sato, Hirotaka Browse this author
Shiota, Yoshinori Browse this author
Morooka, Satoshi Browse this author
Todaka, Yoshikazu Browse this author
Adachi, Nozomu Browse this author
Sadamatsu, Sunao Browse this author
Oikawa, Kenichi Browse this author
Harada, Masahide Browse this author
Zhang, Shuoyuan Browse this author
Su, Yuhua Browse this author
Kamiyama, Takashi Browse this author
Ohnuma, Masato Browse this author
Furusaka, Michihiro Browse this author
Shinohara, Takenao Browse this author
Kiyanagi, Yoshiaki Browse this author →KAKEN DB
Keywords: pulsed neutron Bragg-dip transmission imaging
grain orientation mapping
inverse pole figures
large-area bulk analysis
Issue Date: Dec-2017
Publisher: International Union of Crystallography
Journal Title: Journal of applied crystallography
Volume: 50
Start Page: 1601
End Page: 1610
Publisher DOI: 10.1107/S1600576717012900
Abstract: A new mapping procedure for polycrystals using neutron Bragg-dip transmission is presented. This is expected to be useful as a new materials characterization tool which can simultaneously map the crystallographic direction of grains parallel to the incident beam. The method potentially has a higher spatial resolution than neutron diffraction imaging. As a demonstration, a Bragg-dip neutron transmission experiment was conducted at J-PARC on beamline MLF BL10 NOBORU. A large-grained Si-steel plate was used. Since this specimen included multiple grains along the neutron beam transmission path, it was a challenging task for existing methods to analyse the direction of the crystal lattice of each grain. A new data-analysis method for Bragg-dip transmission measurements was developed based on database matching. As a result, the number of grains and their crystallographic direction along the neutron transmission path have been determined.
Type: article
URI: http://hdl.handle.net/2115/68147
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: 佐藤 博隆

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