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2019

Abnormally enhanced diamagnetism in Al-Zn-Mg alloys

Nishimura, K., Matsuda, K., Lee, S., Nunomura, N., Shimano, T., Bendo, A., Watanabe, K., Tsuchiya, T., Namiki, T., Toda, H. & Yamaguchi, M., Feb 5 2019, In : Journal of Alloys and Compounds. 774, p. 405-409 5 p.

Research output: Contribution to journalArticle

Diamagnetism
Magnetization
Aging of materials
Heat treatment
Vacancies

Al-10Mg 合金における応力腐食割れ挙動に及ぼす水素の影響

Translated title of the contribution: Influence of hydrogen on stress corrosion cracking behavior in Al-10Mg alloyHirayama, K., Toda, H., Shimizu, K., Uesugi, K., Takeuchi, A. & Masunaga, R., Jan 1 2019, In : Keikinzoku/Journal of Japan Institute of Light Metals. 69, 4, p. 223-227 5 p.

Research output: Contribution to journalArticle

Open Access
Stress corrosion cracking
Hydrogen
Corrosion
Cracks
Synchrotrons

Assessment of hydrogen embrittlement via image-based techniques in Al–Zn–Mg–Cu aluminum alloys

Su, H., Toda, H., Shimizu, K., Uesugi, K., Takeuchi, A. & Watanabe, Y., Sep 1 2019, In : Acta Materialia. 176, p. 96-108 13 p.

Research output: Contribution to journalArticle

Hydrogen embrittlement
Hydrogen
Aluminum alloys
Intermetallics
Precipitates

Assessment of predominant microstructural features controlling 3D short crack growth behavior via a surrogate approach in Ti-6Al-4V

Hassanipour, M., Watanabe, S., Hirayama, K., Li, H., Toda, H., Uesugi, K. & Takeuchi, A., Mar 28 2019, In : Materials Science and Engineering A. 751, p. 351-362 12 p.

Research output: Contribution to journalArticle

short cracks
Crack propagation
cracks
Cracks
shear stress

Characterisation of structural similarities of precipitates in Mg–Zn and Al–Zn–Mg alloys systems

Bendo, A., Maeda, T., Matsuda, K., Lervik, A., Holmestad, R., Marioara, C. D., Nishimura, K., Nunomura, N., Toda, H., Yamaguchi, M., Ikeda, K. I. & Homma, T., Jan 1 2019, In : Philosophical Magazine.

Research output: Contribution to journalArticle

precipitates
hexagons
bricks
cells
aspect ratio

Effect of Copper Addition on Precipitation Behavior near Grain Boundary in AlZnMg Alloy

Matsuda, K., Yasumoto, T., Bendo, A., Tsuchiya, T., Lee, S., Nishimura, K., Nunomura, N., Marioara, C. D., Levik, A., Holmestad, R., Toda, H., Yamaguchi, M., Ikeda, K. I., Homma, T. & Ikeno, S., Jan 1 2019, In : Materials Transactions. 60, 8, p. 1688-1696 9 p.

Research output: Contribution to journalArticle

Open Access
Precipitates
Copper
precipitates
Grain boundaries
hardness
4 Citations (Scopus)

First-principles calculation of multiple hydrogen segregation along aluminum grain boundaries

Yamaguchi, M., Ebihara, K. I., Itakura, M., Tsuru, T., Matsuda, K. & Toda, H., Jan 1 2019, In : Computational Materials Science. 156, p. 368-375 8 p.

Research output: Contribution to journalArticle

First-principles Calculation
Grain Boundary
Segregation
Aluminum
Hydrogen

Hydrogen desorption behavior in Al-8%Zn-1%Mg alloy

Fujihara, H., Toda, H., Shimizu, K., Takeuchi, A. & Uesugi, K., Jan 1 2019, In : Keikinzoku/Journal of Japan Institute of Light Metals. 69, 3, p. 186-193 8 p.

Research output: Contribution to journalArticle

Open Access
Hydrogen
Desorption
Thermal desorption
Hydrogen embrittlement
Grain boundaries

Hydrogen partitioning behavior and related hydrogen embrittlement in Al-Zn-Mg alloys

Shimizu, K., Toda, H., Fujihara, H., Hirayama, K., Uesugi, K. & Takeuchi, A., Jan 1 2019, In : Engineering Fracture Mechanics. 106503.

Research output: Contribution to journalArticle

Hydrogen embrittlement
Hydrogen
Precipitates
Grain boundaries
Mg-Al-Zn-Mn-Si-Cu alloy
1 Citation (Scopus)
high strength alloys
High strength alloys
Crack tips
crack tips
aluminum alloys

Optimization of mechanical properties in aluminum alloys via hydrogen partitioning control

Toda, H., Yamaguchi, M., Matsuda, K., Shimizu, K., Hirayama, K., Su, H., Fujihara, H., Ebihara, K., Itakura, M., Tsuru, T., Nishimura, K., Nunomura, N., Lee, S., Tsuchiya, T., Takeuchi, A. & Uesugi, K., Feb 1 2019, In : Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan. 105, 2, p. 118-131 14 p.

Research output: Contribution to journalArticle

Open Access
hydrogen embrittlement
Hydrogen embrittlement
aluminum alloys
Hydrogen
Aluminum alloys
2018
10 Citations (Scopus)

Atomic scale HAADF-STEM study of η′ and η 1 phases in peak-aged Al–Zn–Mg alloys

Bendo, A., Matsuda, K., Lee, S., Nishimura, K., Nunomura, N., Toda, H., Yamaguchi, M., Tsuru, T., Hirayama, K., Shimizu, K., Gao, H., Ebihara, K., Itakura, M., Yoshida, T. & Murakami, S., Mar 1 2018, In : Journal of Materials Science. 53, 6, p. 4598-4611 14 p.

Research output: Contribution to journalArticle

Precipitates
Thermomechanical treatment
Phase boundaries
Model structures
Electron microscopes
4 Citations (Scopus)

Evolution behavior of hydrogen-induced nano voids in AlZnMgCu aluminum alloys under loading

Gao, H., Su, H., Shimizu, K., Kadokawa, C., Toda, H., Terada, Y., Uesugi, K. & Takeuchi, A., Jan 1 2018, In : Materials Transactions. 59, 9, p. 1532-1535 4 p.

Research output: Contribution to journalArticle

Synchrotrons
aluminum alloys
voids
Hydrogen
Aluminum alloys
7 Citations (Scopus)

First-principles study of hydrogen segregation at the MgZn2 precipitate in Al-Mg-Zn alloys

Tsuru, T., Yamaguchi, M., Ebihara, K., Itakura, M., Shiihara, Y., Matsuda, K. & Toda, H., Jun 1 2018, In : Computational Materials Science. 148, p. 301-306 6 p.

Research output: Contribution to journalArticle

Segregation
First-principles
Trap
Hydrogen
Precipitates
9 Citations (Scopus)

Influence of hydrogen on strain localization and fracture behavior in Al–Zn–Mg–Cu aluminum alloys

Su, H., Toda, H., Masunaga, R., Shimizu, K., Gao, H., Sasaki, K., Bhuiyan, M. S., Uesugi, K., Takeuchi, A. & Watanabe, Y., Oct 15 2018, In : Acta Materialia. 159, p. 332-343 12 p.

Research output: Contribution to journalArticle

Hydrogen
Aluminum alloys
Hydrogen embrittlement
Tomography
Imaging techniques
2 Citations (Scopus)

Microstructure evolution in a hydrogen charged and aged Al–Zn–Mg alloy

Bendo, A., Matsuda, K., Lee, S., Nishimura, K., Toda, H., Shimizu, K., Tsuru, T. & Yamaguchi, M., Nov 1 2018, In : Materialia. 3, p. 50-56 7 p.

Research output: Contribution to journalReview article

Hydrogen
Microstructure
Electron diffraction
Vacancies
Aspect ratio
1 Citation (Scopus)

Short crack growth behavior and its transitional interaction with 3D microstructure in Ti-6Al-4V

Hassanipour, M., Watanabe, S., Hirayama, K., Toda, H., Uesugi, K. & Takeuchi, A., Dec 19 2018, In : Materials Science and Engineering A. 738, p. 229-237 9 p.

Research output: Contribution to journalArticle

short cracks
Crack propagation
cracks
microstructure
Microstructure
1 Citation (Scopus)

The Role of Hydrogen on the Local Fracture Toughness Properties of 7XXX Aluminum Alloys

Bhuiyan, M. S., Toda, H., Shimizu, K., Su, H., Uesugi, K., Takeuchi, A. & Watanabe, Y., Nov 1 2018, In : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 49, 11, p. 5368-5381 14 p.

Research output: Contribution to journalArticle

crack tips
fracture strength
Crack tips
aluminum alloys
Fracture toughness
2017

4D hydrogen embrittlement behaviour in high strength aluminium alloy

Toda, H., Shimizu, K., Gao, H. & Hirayama, K., Jan 1 2017, p. 728-729. 2 p.

Research output: Contribution to conferencePaper

High strength alloys
Hydrogen embrittlement
Aluminum alloys
X rays
Hydrogen

ADC12合金のミクロな偏析の位相イメージングと損傷挙動

Toda, H., 2017, In : 鋳造工学. 89, 1, p. 10-16

Research output: Contribution to journalArticle

Corrigendum to “Damage micromechanisms in dual-phase steel investigated with combined phase- and absorption-contrast tomography” [Acta Materialia 126 (2017) 401–412](S1359645417300101)(10.1016/j.actamat.2017.01.010)

Toda, H., Takijiri, A., Azuma, M., Yabu, S., Hayashi, K., Seo, D., Kobayashi, M., Hirayama, K., Takeuchi, A. & Uesugi, K., Jul 1 2017, In : Acta Materialia. 133, 1 p.

Research output: Contribution to journalComment/debate

Steel
Tomography
Iron
Chemical analysis
corrigendum
10 Citations (Scopus)

Damage micromechanisms in dual-phase steel investigated with combined phase- and absorption-contrast tomography

Toda, H., Takijiri, A., Azuma, M., Yabu, S., Hayashi, K., Seo, D., Kobayashi, M., Hirayama, K., Takeuchi, A. & Uesugi, K., Mar 1 2017, In : Acta Materialia. 126, p. 401-412 12 p.

Research output: Contribution to journalArticle

Steel
Martensite
Tomography
Ferrite
Nucleation

Hydrogen induced strain localization in Al-Zn-Mg-Cu aluminum alloys

Su, H., Toda, H., Masunaga, R., Uesugi, K., Takeuchi, A. & Watanabe, Y., Jan 1 2017, p. 710-711. 2 p.

Research output: Contribution to conferencePaper

Aluminum alloys
Hydrogen
Hydrogen embrittlement
Crack tips
Tomography
4 Citations (Scopus)

Influence of intermetallic particles on the initiation and growth behavior of hydrogen micropores during high-temperature exposure in Al-Zn-Mg-Cu aluminum alloys

Su, H., Bhuiyan, S., Toda, H., Uesugi, K., Takeuchi, A. & Watanabe, Y., Jul 1 2017, In : Scripta Materialia. 135, p. 19-23 5 p.

Research output: Contribution to journalArticle

aluminum alloys
Intermetallics
intermetallics
Hydrogen
Aluminum alloys
1 Citation (Scopus)

Precipitation structure and mechanical properties on peak-aged Al-Zn-Mg alloys including different with some zn/mg ratios

Lee, S., Watanabe, K., Matsuda, K., Nishimura, K., Numomura, N., Toda, H., Hirayama, K., Shimizu, K., Gao, H., Yamaguchi, M., Ebihara, K., Itakura, M., Tsuru, T., Yoshida, T., Murakami, S. & Ikeno, S., Jan 1 2017, In : Keikinzoku/Journal of Japan Institute of Light Metals. 67, 5, p. 162-167 6 p.

Research output: Contribution to journalArticle

Mechanical properties
Precipitates
Electron diffraction
Diffraction patterns
Tensile strength

シンクロトロン放射光を用いた3D/4Dイメージングの現状

Toda, H. & Hirayama, K., 2017, In : ふえらむ. 22, 2, p. 99-103

Research output: Contribution to journalReview article

2016
7 Citations (Scopus)

3D fracture behaviours in dual-phase stainless steel

Toda, H., Tomizato, F., Harasaki, R., Seo, D., Kobayashi, M., Takeuchi, A. & Uesugi, K., Jan 1 2016, In : ISIJ International. 56, 5, p. 883-892 10 p.

Research output: Contribution to journalArticle

Stainless Steel
Stainless steel
Nucleation
Phase boundaries
Austenite
14 Citations (Scopus)

Combined microtomography, thermal desorption spectroscopy, X-ray diffraction study of hydrogen trapping behavior in 7XXX aluminum alloys

Bhuiyan, M. S., Toda, H., Peng, Z., Hang, S., Horikawa, K., Uesugi, K., Takeuchi, A., Sakaguchi, N. & Watanabe, Y., Feb 8 2016, In : Materials Science and Engineering A. 655, p. 221-228 8 p.

Research output: Contribution to journalArticle

Thermal desorption spectroscopy
aluminum alloys
Hydrogen
Aluminum alloys
desorption

Construction of finite element meshes for polycrystal grains model from X-ray CT image

Kobayashi, M., Matsuyama, T., Kouno, A., Toda, H. & Miura, H., Jan 1 2016, In : Materials Transactions. 57, 12, p. 2089-2096 8 p.

Research output: Contribution to journalArticle

Polycrystals
polycrystals
Plasticity
mesh
plastic properties
1 Citation (Scopus)

Corrigendum to "Combined microtomography, thermal desorption spectroscopy, X-ray diffraction study of hydrogen trapping behavior in 7XXX aluminum alloys" [Mater. Sci. Eng. A 655 (2016) 221-228] doi: 10.1016/j.msea.2015.12.092

Bhuiyan, M. S., Toda, H., Peng, Z., Hang, S., Horikawa, K., Uesugi, K., Takeuchi, A., Sakaguchi, N. & Watanabe, Y., Jun 21 2016, In : Materials Science and Engineering A. 668, p. 271-272 2 p.

Research output: Contribution to journalComment/debate

Thermal desorption spectroscopy
aluminum alloys
Aluminum alloys
desorption
trapping

Damage behavior of micro segregation in Al-Si alloy by use of phase contrast imaging

Yamada, R., Toda, H., Besel, Y., Uesugi, K. & Akihisa, T., Jan 1 2016, 72nd World Foundry Congress, WFC 2016. The WFO (The World Foundry Organization Ltd), p. 379-380 2 p.

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

Imaging techniques
Tomography
X rays
Processing
Synchrotrons
9 Citations (Scopus)

Diffraction-amalgamated grain boundary tracking for mapping 3D crystallographic orientation and strain fields during plastic deformation

Toda, H., Kamiko, T., Tanabe, Y., Kobayashi, M., Leclere, D. J., Uesugi, K., Takeuchi, A. & Hirayama, K., Apr 1 2016, In : Acta Materialia. 107, p. 310-324 15 p.

Research output: Contribution to journalArticle

Crystal orientation
Plastic deformation
Grain boundaries
Diffraction
X ray diffraction
6 Citations (Scopus)

Ductile fracture via hydrogen pore mechanism in an aluminum alloy; quantitative microstructural analysis and image-based finite element analysis

Hosokawa, A., Toda, H., Batres, R., Li, H., Kuwazuru, O., Kobayashi, M. & Yakita, H., Aug 1 2016, In : Materials Science and Engineering A. 671, p. 96-106 11 p.

Research output: Contribution to journalArticle

Ductile fracture
ductility
aluminum alloys
quantitative analysis
Ductility
6 Citations (Scopus)

Identification of material properties using nanoindentation and surrogate modeling

Li, H., Gutierrez, L., Toda, H., Kuwazuru, O., Liu, W., Hangai, Y., Kobayashi, M. & Batres, R., Mar 1 2016, In : International Journal of Solids and Structures. 81, p. 151-159 9 p.

Research output: Contribution to journalArticle

Nanoindentation
nanoindentation
Material Properties
Surrogate Model
Materials properties
9 Citations (Scopus)

Influences of Hydrogen Micropores and Intermetallic Particles on Fracture Behaviors of Al-Zn-Mg-Cu Aluminum Alloys

Su, H., Yoshimura, T., Toda, H., Bhuiyan, M. S., Uesugi, K., Takeuchi, A., Sakaguchi, N. & Watanabe, Y., Dec 1 2016, In : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 47, 12, p. 6077-6089 13 p.

Research output: Contribution to journalArticle

aluminum alloys
Intermetallics
intermetallics
Hydrogen
Aluminum alloys
11 Citations (Scopus)

Influences of hydrogen on deformation and fracture behaviors of high Zn 7XXX aluminum alloys

Bhuiyan, M. S., Tada, Y., Toda, H., Hang, S., Uesugi, K., Takeuchi, A., Sakaguchi, N. & Watanabe, Y., Jul 1 2016, In : International Journal of Fracture. 200, 1-2, p. 13-29 17 p.

Research output: Contribution to journalArticle

Aluminum Alloy
Hydrogen
Aluminum alloys
Mechanical Properties
Mechanical properties
7 Citations (Scopus)

Quantitative tomography of hydrogen precharged and uncharged Al-Zn-Mg-Cu alloy after tensile fracture

Gupta, C., Toda, H., Fujioka, T., Kobayashi, M., Hoshino, H., Uesugi, K., Takeuchi, A. & Suzuki, Y., Jul 18 2016, In : Materials Science and Engineering A. 670, p. 300-313 14 p.

Research output: Contribution to journalArticle

Tomography
Hydrogen
Grain boundaries
tomography
porosity
5 Citations (Scopus)

State of 3-D micro-damage in hydrogen redistributed regions of precharged high strength aluminium alloy

Gupta, C., Toda, H., Fujioka, T., Kobayashi, M., Hoshino, H., Uesugi, K., Takeuchi, A. & Suzuki, Y., Oct 1 2016, In : Corrosion Science. 111, p. 26-38 13 p.

Research output: Contribution to journalArticle

High strength alloys
Hydrogen
Aluminum alloys
Embrittlement
Synchrotrons
6 Citations (Scopus)

Three-dimensional stress and strain around real shape Si particles in cast aluminum alloy under cyclic loading

Teranishi, M., Kuwazuru, O., Gennai, S., Kobayashi, M. & Toda, H., Dec 15 2016, In : Materials Science and Engineering A. 678, p. 273-285 13 p.

Research output: Contribution to journalArticle

cast alloys
Silicon
aluminum alloys
Aluminum alloys
Fatigue of materials
2015
2 Citations (Scopus)

3D creep cavitation characteristics and residual life assessment in high temperature steels: A critical review

Gupta, C., Toda, H., Mayr, P. & Sommitsch, C., Jan 1 2015, In : Materials Science and Technology (United Kingdom). 31, 5, p. 603-626 24 p.

Research output: Contribution to journalReview article

Steel
cavitation flow
Cavitation
Creep
Tomography
3 Citations (Scopus)

Application of Diffraction-Amalgamated Grain Boundary Tracking to Fatigue crack propagation behavior in high strength aluminum alloy

Li, H., Toda, H., Uesugi, K., Takeuchi, A., Suzuki, Y. & Kobayashi, M., Jan 1 2015, In : Materials Transactions. 56, 3, p. 424-428 5 p.

Research output: Contribution to journalArticle

high strength alloys
High strength alloys
crack propagation
Fatigue crack propagation
aluminum alloys
2 Citations (Scopus)

Cavitation studies in materials: New insights from modern techniques in 2D/3D/4D characterisation

Gupta, C., Toda, H., Mayr, P. & Sommitsch, C., Mar 1 2015, In : Materials Science and Technology. 31, 5, p. 513-515 3 p.

Research output: Contribution to journalEditorial

cavitation flow
Cavitation

Growth behavior of hydrogen micro pores in Al-Zn-Mg-Cu alloys during high temperature exposure

Su, H., Toda, H., Uesugi, K., Takeuchi, A. & Suzuki, Y., Jan 1 2015, Materials Science and Technology Conference and Exhibition 2015, MS and T 2015. Association for Iron and Steel Technology, AISTECH, Vol. 2. p. 1589-1593 5 p.

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

Synchrotron radiation
Superalloys
Hydrogen
8 Citations (Scopus)

In situ observation of void nucleation and growth in a steel using X-ray tomography

Seo, D., Toda, H., Kobayashi, M., Uesugi, K., Takeuchi, A. & Suzuki, Y., Jan 1 2015, In : isij international. 55, 7, p. 1474-1482 9 p.

Research output: Contribution to journalArticle

Steel
Tomography
Nucleation
X rays
Coalescence
11 Citations (Scopus)

Investigation of creep damage in advanced martensitic chromium steel weldments using synchrotron X-ray micro-tomography and EBSD

Schlacher, C., Pelzmann, T., Béal, C., Sommitsch, C., Gupta, C., Toda, H. & Mayr, P., Mar 1 2015, In : Materials Science and Technology. 31, 5, p. 516-521 6 p.

Research output: Contribution to journalArticle

chromium steels
Boron
Steel
Chromium
Synchrotrons
Aluminum alloys
Plastic deformation
Tomography
Nucleation
X rays

Optimization of hydrogen embrittlement in Al-Zn-Mg alloys

Shimizu, K., Toda, H., Sasaki, K., Uesugi, K. & Takeuchi, A., Jan 1 2015, Materials Science and Technology Conference and Exhibition 2015, MS and T 2015. Association for Iron and Steel Technology, AISTECH, Vol. 2. p. 1583-1587 5 p.

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

Hydrogen embrittlement
4 Citations (Scopus)

Three-dimensional investigation of void coalescence in free-cutting steel using X-ray tomography

Seo, D., Toda, H., Kobayashi, M., Uesugi, K., Takeuchi, A. & Suzuki, Y., Jan 1 2015, In : isij international. 55, 7, p. 1483-1488 6 p.

Research output: Contribution to journalArticle

Steel
Coalescence
Tomography
X rays
Ductile fracture

年間レビュー 力学特性

Toda, H., 2015, In : 軽金属. 65, 8, p. 366-368

Research output: Contribution to journalReview article