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Journal Articles

Effect of nitrogen concentration on nano-structure and high-temperature strength of 9Cr-ODS steel

Oka, Hiroshi; Tanno, Takashi; Otsuka, Satoshi; Yano, Yasuhide; Kaito, Takeji

Nuclear Materials and Energy (Internet), 16, p.230 - 237, 2018/08

 Times Cited Count:2 Percentile:33.17(Nuclear Science & Technology)

Journal Articles

${it In-situ}$ observation of dislocation evolution in ferritic and austenitic stainless steels under tensile deformation by using neutron diffraction

Sato, Shigeo*; Kuroda, Asumi*; Sato, Kozue*; Kumagai, Masayoshi*; Harjo, S.; Tomota, Yo*; Saito, Yoichi*; Todoroki, Hidekazu*; Onuki, Yusuke*; Suzuki, Shigeru*

Tetsu To Hagane, 104(4), p.201 - 207, 2018/00

 Times Cited Count:5 Percentile:43.06(Metallurgy & Metallurgical Engineering)

Journal Articles

Effect of thermo-mechanical treatments on nano-structure of 9Cr-ODS steel

Oka, Hiroshi; Tanno, Takashi; Otsuka, Satoshi; Yano, Yasuhide; Uwaba, Tomoyuki; Kaito, Takeji; Onuma, Masato*

Nuclear Materials and Energy (Internet), 9, p.346 - 352, 2016/12

 Times Cited Count:14 Percentile:86.01(Nuclear Science & Technology)

Journal Articles

Characterization of C$$_{60}$$ films polymerized by ion irradiation

Narumi, Kazumasa; Sakai, Seiji; Naramoto, Hiroshi*; Takanashi, Koki

Fullerenes, Nanotubes, and Carbon Nanostructures, 14(2-3), p.429 - 434, 2006/00

no abstracts in English

Journal Articles

Irradiation effects on precipitation in reduced-activation ferritic/martensitic steels

Tanigawa, Hiroyasu; Sakasegawa, Hideo*; Klueh, R. L.*

Materials Transactions, 46(3), p.469 - 474, 2005/03

 Times Cited Count:16 Percentile:71.57(Materials Science, Multidisciplinary)

The effects of irradiation on precipitation of reduced-activation ferritic/martensitic steels (RAFs) were investigated, and its impacts on the Charpy impact properties and tensile properties were discussed. It was previously reported that RAFs (F82H-IEA and its heat treatment variant, ORNL9Cr-2WVTa, JLF-1 and 2%Ni doped F82H) shows variety of changes on its ductile-brittle transition temperature (DBTT) and yield stress after irradiation at 573K up to 5dpa. These differences could not be interpreted as an effect of irradiation hardening caused by dislocation loop formation. The precipitation behavior of the irradiated steels was examined by weight analysis, X-ray diffraction analysis and chemical analysis on extraction residues. These analyses suggested that irradiation caused (1) the increase of the amount of precipitates (mainly M$$_{23}$$C$$_{6}$$), (2) increase of Cr and decrease of W contained in precipitates, (3) disappearance of MX (TaC) in ORNL9Cr and JLF-1.

Journal Articles

Rutherford backscattering/channelling,XRD,XRD pole figure and AES characterization of FeTio$$_{3}$$ thin films prepared in different ambients by laser ablation

Dai, Z.*; Naramoto, Hiroshi; Yamamoto, Shunya; Narumi, Kazumasa; Miyashita, Atsumi

Journal of Physics; Condensed Matter, 11(3), p.913 - 925, 1999/00

 Times Cited Count:4 Percentile:29.28(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Chemical vapor deposition of silicon carbide for coated fuel particles

Minato, Kazuo;

Journal of Nuclear Materials, 149, p.233 - 246, 1987/00

 Times Cited Count:53 Percentile:96.77(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

X-ray diffraction of the molten salt 50mol%AlCl$$_{3}$$-50mol%LiCl

*; *; *;

J.Chem.Soc.,Faraday Trans.,2, 81, p.319 - 326, 1985/00

no abstracts in English

JAEA Reports

Oral presentation

Clay mineral composition and K-Ar ages from fault gouges in the Kojaku Granite, Tsuruga Peninsula

Niwa, Masakazu; Shimada, Koji; Sueoka, Shigeru; Tamura, Hajimu; Shibata, Kenji

no journal, , 

X-ray diffraction analysis and K-Ar dating were applied for fault gouges in the late Cretaceous Kojaku Granite, Tsuruga Peninsula. The fault gouge includes smectite, 1M$$_{d}$$ type illite, and kaolinite, based on the X-ray diffraction analysis. The K-Ar dating shows approximately 39 to 45 Ma for the $$<$$ 0.1 $$mu$$m size fractions separated from the gouges. The K-Ar ages and the reconstructed cooling history of the granite suggest that the 1M$$_{d}$$ illite was formed at 60 to 110 $$^{circ}$$C (approximately 2 to 4 km in depth for 30 $$^{circ}$$C/km of geothermal gradient).

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