Crystallographic microstructure study of a japanese sword made by noritsuna in the muromachi period by pulsed neutron bragg-edge transmission imaging

Hirotaka Sato, Yoshiaki Kiyanagi, Kenichi Oikawa, Kazuma Ohmae, Anh Hoang Pham, Kenichi Watanabe, Yoshihiro Matsumoto, Takenao Shinohara, Tetsuya Kai, Stefanus Harjo, Masato Ohnuma, Shigekazu Morito, Takuya Ohba, Akira Uritani, Masakazu Itoh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Large-area real-space distribution of crystallographic microstructural information in a Japanese sword made by Noritsuna at Bizen in A.D. 1405 was non-destructively investigated by Bragg-edge neutron transmission imaging using the RADEN instrument at BL22 of MLF (Materials and Life Science Experimental Facility) in J-PARC and the data analysis software RITS (Rietveld Imaging of Transmission Spectra), as one of the series of a systematic research project. As a result, unique properties of the Noritsuna sword were revealed as follows. Hard martensite which d-spacing is close to that of a modern quenched steel exists at the cutting edge, but the area is smaller than that of a modern sword. Coarse grains exist near the notch at the back of the tang. Fine and coarse crystallite-size steels are separately distributed. The texture is not so strong, and the preferred orientation <210> is perpendicular to the normal direction of the sword plate except for the front region of the tang region.

Original languageEnglish
Title of host publicationNeutron Radiography - 11th World Conference on Neutron Radiography, WCNR 2018
EditorsFilomena Salvemini, Joseph J. Bevitt
PublisherAssociation of American Publishers
Pages214-220
Number of pages7
ISBN (Print)9781644900567
DOIs
Publication statusPublished - 2020
Externally publishedYes
Event11th World Conference on Neutron Radiography, WCNR 2018 - Sydney, Australia
Duration: Sep 2 2018Sep 7 2018

Publication series

NameMaterials Research Proceedings
Volume15
ISSN (Print)2474-3941
ISSN (Electronic)2474-395X

Conference

Conference11th World Conference on Neutron Radiography, WCNR 2018
Country/TerritoryAustralia
CitySydney
Period9/2/189/7/18

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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