Publications
- Sublattice alloy design of high-strength steels: Application of clustering and nanoscale precipitation of interstitial and substitutional solutes
T. Furuhara, Y. Zhang, M. Sato, G. Miyamoto, M. Enoki, H. Ohtani, T. Uesugi, H. Numakura
Scripta Materialia, 223, 115063 (2023). [View on-line] - Nondestructive analysis of solute carbon in the ferrite phase in dual-phase steels containing Mn or Si by mechanical loss measurements
T. Miyata, G. Komeda, H. Numakura, T. Yokoi, J. Haga, Y. Kitajima
Journal of Alloys and Compounds, 914, 165194 (2022). [View on-line] - Explosive crystallization of sputter-deposited amorphous germanium films by irradiation with an electron beam of SEM-level energies
R. Nakamura, A. Matsumoto, M. Ishimaru
Journal of Applied Physics, 129, 215301 (2021). [View on-line] - Investigations of the Co-Pt alloy phase diagram with neutron diffuse scattering, inverse cluster variation method, and Monte Carlo simulations
M. Fèvre, J. -M. Sanchez, J. R. Stewart, J. -S. Mérot, F. Fossard, Y. Le Bouar, K. Tanaka, H. Numakura, G. Schmerber, and V. Pierron-Bohnes
Physical Review B 102, 134114 (2020). [View on-line] - Effects of hydrogen on structure and crystallization behavior of sputter-deposited amorphous germanium films
Y. Hanya, R. Nakamura, M. Okugawa, M. Ishimaru, G. Oohata, H. Yasuda
Japanese Journal of Applied Physics, 59, 075506 (2020). [View on-line] - Dual crystallization modes of sputter-deposited amorphous SiGe films
M. Okugawa, R. Nakamura, H. Numakura, M. Ishimaru, H. Yasuda
Journal of Applied Physics, 128, 015303 (2020). [View on-line] -
Evaluation of Boron Solubility in Iron Solid Solution by Radio-frequency Glow-discharge Optical Emission Spectroscopy
N. Sekido, Y. Kimura, T. Osanai, T. Miyagi, H. Numakura, K. Yoshimi
Tetsu-to-Hagane, 106(6), 292-301 (2020). [View on-line] - Measurement of Diffusion Profile of Boron in α Iron by Secondary-ion Mass Spectrometry and Determination of Its Diffusion Coefficient
K. Hamana, R. Nakamura , H. Numakura, T. Suzuki
Tetsu-to-Hagane, 106(6), 302-309 (2020). [View on-line] - Nano Clustering of Interstitial and Substitutional Solute Atoms in Steels
G. Miyamoto, H. Numakura, M. Enoki, T. Uesugi, H. Ohtani, T. Furuhara
Materia Japan, 59(3), 128-133 (2020). [View on-line] - The relation between amorphous structure and explosive crystallization of sputter-deposited amorphous germanium thin films
M. Okugawa, R. Nakamura, H. Numakura, A. Heya, N. Matsuo, H. Yasuda
Japanese Journal of Applied Physics, 58(4), 045501 (2019). [View on-line] - Structure of crystallized particles in sputter-deposited amorphous germanium films
M. Okugawa, R. Nakamura, A. Hirata, M. Ishimaru, H. Yasuda, H. Numakura
Journal of Applied Crystallography, 51 (5), 1467-1473 (2018). [View on-line] - Low-temperature synthesis of crystalline GeSn with high Sn concentration by electron excitation effect
T. Kimura, M. Ishimaru, M. Okugawa, R. Nakamura, H. Yasuda
Japanese Journal of Applied Physics, 56, 100307 (2017). [View on-line] - Effect of post-weld heat treatment on fatigue reliability of super-duplex-stainless-steel weldments
R. Udo, H. Numakura
ISIJ International, 57(7), 1228-1232 (2017). [View on-line] - Effect of loading method and mean stress on fatigue strength of super duplex stainless steel
R.Udo, Hide-aki Nishikawa, Hisamitsu Hato, Katsumasa Miyazaki, Kiyotaka Masaki, Hiroshi Numakura
Tetsu-to-Hagane, 103(4), 201-207 (2017). [View on-line] - Thermal crystallization of sputter-deposited amorphous Ge films: Competition of diamond cubic and hexagonal phases
M. Okugawa, R. Nakamura, M. Ishimaru, H. Yasuda, H. Numakura
AIP Advances, 6, 125035 (2016). [Open Access] - Crystallization of sputter-deposited amorphous Ge films by electron irradiation: Effect of low-flux pre-irradiation
M. Okugawa, R. Nakamura, M. Ishimaru, H. Yasuda, H. Numakura
Journal of Applied Physics, 120, 134308 (2016). [View on-line] - Ab initio characterization of B, C, N, and O in bcc iron: Solution and migration energies and elastic strain fields
Maaouia Souissi, Ying Chen, Marcel H.F. Sluiter, Hiroshi Numakura
Computational Materials Science, 124, 249–258 (2016). [View on-line] - Structural transition in sputter-deposited amorphous germanium films by aging at ambient temperature M. Okugawa, R. Nakamura, M. Ishimaru, K. Watanabe, H. Yasuda, H. Numakura Journal of Applied Physics, 119, 214309 (2016). [View on-line]
- The Kirkendall effect and nanoscience: hollow nanospheres and nanotubes
A.-A. El Mel, R. Nakamura, C. Bittencourt
Beilstein Journal of Nanotechnology, 6, 1348-61 (2015). [View on-line] - Solute-solute interaction in α iron: the status quo
Hiroshi Numakura
Archives of Metallurgy and Materials, 60 (3), 2061-2068 (2015). [View on-line] - Elastic properties of Fe-C and Fe-N martensites
Maaouia Souissi, Hiroshi Numakura
ISIJ International, 55 (7), 1512-1521 (2015). [View on-line] - Discussion of “On the Boltzmann-Matano analysis of diffusion in a semi-infinite medium”
Masayuki Okugawa, Hiroshi Numakura
Metallurgical and Materials Transactions A, 46 (9), 3813-3814 (2015). [View on-line] - Theoretical evaluation of anisotropic distortion associated with point defects in ordered alloys
Souissi M., Nakamura R., Numakura H.
Defect and Diffusion Forum, 363, 101-105 (2015). [View on-line] - Stability of amorphous Ta-O nanotubes prepared by anodization: thermal and structural analyses
R. Nakamura, K. Asano, M. Ishimaru, K. Sato, M. Takahashi, H. Numakura
Journal of Materials Research, 29 [6], 753-760 (2014). [View on-line] - Formation of titanium hydride in dilute Cu-Ti alloy by aging in hydrogen atmosphere and its effects on electrical and mechanical properties
Satoshi Semboshi, Satoshi Yamauchi, Hiroshi Numakura
Materials Transactions, 54 (4), 520-527 (2013). [View on-line] - Formation of titanium hydride in dilute Cu-Ti alloy by aging in hydrogen atmosphere and its effects on electrical and mechanical properties (in Japanese)
Satoshi Semboshi, Satoshi Yamauchi, Hiroshi Numakura
J. Japan Inst.Metals, 76 (8), 496-503 (2012). [View on-line] - Characterization of defects in severely deformed iron by mechanical spectroscopy
T. Akaki, H. Morimoto, H. Numakura, D. Terada, N. Tsuji
Solid State Phenomena, 184, 233-238 (2012). [View on-line] - Quantitative analysis of carbon in ferrite in dual-phase steels by mechanical loss measurements
K. Honda, K. Nakano, H. Numakura, T. Yokoi, D. Maeda, N. Yoshinaga, K. Ushioda
Solid State Phenomena, 184, 87-91 (2012). [View on-line] - Effects of aging temperature on electrical conductivity and hardness of Cu−3 at. pct Ti alloy aged in a hydrogen atmosphere
Satoshi Semboshi, Tomoya Nishida, Hiroshi Numakura, Tala'at Al-Kassab, Reiner Kirchheim
Metallurgical and Materials Transactions A, 42A (8), 2136-2143 (2011). [View on-line] - Aging of Cu−3 at% Ti alloys in hydrogen atmosphere: Influence of hydrogen pressure on strength and electrical conductivity
Satoshi Semboshi, Tomoya Nishida, Hiroshi Numakura
Materials Transactions, 52 (4), 605-609 (2011). [View on-line] - Effect of prior cold-working on strength and electrical conductivity of Cu−Ti dilute alloy aged in a hydrogen atmosphere
Satoshi Semboshi, Hiroshi Numakura, Weilin Gao, Hisashi Suda, Akira Sugawara
Materials Science Forum, 654-656, 1315-1318 (2010). [View on-line] - Texture randomization of AZ31 magnesium alloy sheets for improving the cold formability by a combination of rolling and high-temperature annealing (in Japanese)
Kohzu Masahide, Kii Kenji, Nagata Yuuki, Nishio Hiroyuki, Higashi Kenji, Inoue Hirofumi
Journal of the Japan Institute of Light Metals, 60 (5), 237-243 (2010). [View on-line] - Texture randomization of AZ31 magnesium alloy sheets for improving the cold formability by a combination of rolling and high-temperature annealing
Masahide Kohzu, Kenji Kii, Yuki Nagata, Hiroyuki Nishio, Kenji Higashi, Hirofumi Inoue
Materials Transactions, 51 (4), 749-755 (2010). [View on-line] - Grain refinement of magnesium alloy AZ31 under torsion extrusion with a square-hole die
Susumu Mizunuma, Takamichi Iizuka, Kazuhiro Mitsui, Hideto Okumura, Masahide Kohzu
Material Science Forum, 654-656, 711-714 (2010). [View on-line] - Effects of hydrogen puressure on hardness, electrical conductivity and microstructure of Cu−3 at.% Ti alloy aged in a hydrogen atmosphere (in Japanese)
S. Semboshi, T. Nishida, H. Numakura
Copper and Copper Alloy, 49 (1), 144-148 (2010). - Visible light responses of sulfur-doped rutile titanium dioxide photocatalysts fabricated by anodic oxidation
Yoshiteru Mizukoshi, Naofumi Ohtsu, Satoshi Semboshi, Naoya Masahashi
Applied Catalysis B, 91 (1-2), 152-156 (2009). [View on-line] - Effect of aging temperature on microstructure, hardness and electrical conductivity of Cu−3 at.% Ti alloy aged in a deuterium atmosphere (in Japanese)
Semboshi Satoshi, Nishida Tomoya, Numakura Hiroshi, Tallat Al-Kassab, Reiner Kirchheim
Copper and Copper Alloy, 48 (1), 86-91 (2009). - Microstructure and mechanical properties of Cu−3 at.% Ti alloy aged in a hydrogen atmosphere
Satoshi Semboshi, Tomoya Nishida, Hiroshi Numakura
Materials Science and Engineering A, 517 (1-2), 105-113 (2009). [View on-line] - Enhanced photocatalytic activity of rutile TiO2 prepared by anodic oxidation in a high concentration sulfuric acid electrolyte
N. Masahashi, Y. Mizukoshi, S. Semboshi, N. Ohtsu
Applied Catalysis B, 90 (1-2), 255-261 (2009). [View on-line] - Microstructural evolution of Cu−1 at.% Ti alloy aged in a hydrogen atmosphere and its relation with the electrical conductivity
Satoshi Semboshi, Talaat Al-Kassab, Ryota Gemma, Reiner Kirchheim
Ultramicroscopy, 109 (5), 593-598 (2009). [View on-line] - Dynamic viscoelasticity of Zr−Al−Ni−Cu metallic glass in the glass transition region
Y. Ueno, M. Hojo, H. Numakura, T. Ichitsubo, J. Saida
Materials Science and Engineering A, 521-522, 232-235 (2009). [View on-line] - Application of mechanical spectroscopy to studies of atomic diffusion in ordered compounds
H. Numakura, K. Nishi
Materials Science and Engineering A, 521-522, 34-38 (2009). [View on-line] - Rolling texture evolution of AZ31 magnesium alloy sheets by isothermal eccentric-rolls drawing
Kohzu Masahide, Nakatsuka Shouta, Higashi Kenji
Journal of the Japan Institute of Light Metals, 59 (9), 498-501 (2009). [View on-line] - Rolling texture evolution of AZ31 magnesium alloy sheets by isothermal eccentric-rolls drawing (in Japanese)
Masahide Kohzu, Shota Nakatsuka, Kenji Higashi
Materials Transactions, 49 (9), 2096-2099 (2008). [View on-line] - Effect of strain rate, temperature and sheet thickness on yield locus of AZ31 magnesium alloy sheet
Tetsuo Naka, Takeshi Uemori, Ryutaro Hino, Masahide Kohzu, Kenji Higashi, Fusahito Yoshida
Journal of Materials Processing Technology, 201 (1-3), 395-400, (2008). [View on-line] - Microstructure, strength and electrical conductivity of Cu−3 at.% Ti alloys aged in a hydrogen atmosphere (in Japanese)
Satoshi Semboshi, Tomoya Nishida, Hiroshi Numakura, Toyohiko Konno
Copper and Copper Alloy, 47 (1), 165-170 (2008). - Combined ab initio/CALPHAD modeling of fcc-based phase-equilibria in the Ir−Nb system
Taichi Abe, Ying Chen, Yoko Yamabe-Mitarai, Hiroshi Numakura
Computer Coupling of Phase Diagrams and Thermochemistry, 32 (2), 353-360 (2008). [View on-line] - Effect of aging in hydrogen atmosphere on electrical conductivity of Cu−3 at.%Ti alloy
Satoshi Semboshi, Toyohiko J. Konno
Journal of Materials Research, 23, 473-477 (2008). [View on-line] - Structural and dielectric properties of anodic oxide film on Nb−Ti alloy
Satoshi Semboshi, Ko-ichi Bando, Naofumi Ohtsu, Yonggu Shim, Toyohiko J. Konnno
Thin Solid Films, 516 (23), 8613-8619 (2008). [View on-line] - Microstructure and superhydrophilicity of anodic TiO2 films on pure titanium
N. Masahashi, S. Semboshi, N. Ohtsu, M. Oku
Thin Solid Films, 516 (21), 7488-7496 (2008). [View on-line]