Hydrogen Storage Division

Activation of titanium-vanadium alloy for hydrogen storage by introduction of nanograins and edge dislocations using high-pressure torsion

Edalati, K., Shao, H., Emami, H., Iwaoka, H., Akiba, E. & Horita, Z., Jun 8 2016, In : International Journal of Hydrogen Energy. 41, 21, p. 8917-8924 8 p.

Research output: Contribution to journal › Article

vanadium alloys

Vanadium alloys

Edge dislocations

edge dislocations

Hydrogen storage

16 Citations (Scopus)

Aging Behavior of Al 6061 Alloy Processed by High-Pressure Torsion and Subsequent Aging

Mohamed, I. F. B., Lee, S., Edalati, K., Horita, Z., Hirosawa, S., Matsuda, K. & Terada, D., Jun 1 2015, In : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 46, 6, p. 2664-2673 10 p.

Research output: Contribution to journal › Article

hardening

Torsional stress

torsion

hardness

Aging of materials

165 Citations (Scopus)

A review on high-pressure torsion (HPT) from 1935 to 1988

Edalati, K. & Horita, Z., Jan 15 2016, In : Materials Science and Engineering A. 652, p. 325-352 28 p.

Research output: Contribution to journal › Review article

Torsional stress

torsion

Inorganic compounds

torsional stress

Machine design

21 Citations (Scopus)

Formation of metastable phases in magnesium-titanium system by high-pressure torsion and their hydrogen storage performance

Edalati, K., Emami, H., Staykov, A. T., Smith, D. J., Akiba, E. & Horita, Z., Aug 13 2015, In : Acta Materialia. 99, p. 150-156 7 p.

Research output: Contribution to journal › Article

Metastable phases

Hydrogen storage

Titanium

Hydrides

Torsional stress

2 Citations (Scopus)

Grain refinement and microstructure evolution in aluminum A2618 alloy by high-pressure torsion

Mohamed, I. F., Lee, S., Edalati, K., Horita, Z., Abdullah, S., Omar, M. Z. & Wan Zamri, W. F. H., Jan 1 2016, In : Jurnal Teknologi. 78, 6-9, p. 149-152 4 p.

Research output: Contribution to journal › Article

Grain refinement

Torsional stress

Aluminum alloys

Microstructure

Processing

25 Citations (Scopus)

High-pressure torsion of aluminum with ultrahigh purity (99.9999%) and occurrence of inverse Hall-Petch relationship

Ito, Y., Edalati, K. & Horita, Z., Jan 2 2017, In : Materials Science and Engineering A. 679, p. 428-434 7 p.

Research output: Contribution to journal › Article

Aluminum

Torsional stress

torsion

purity

hardness

30 Citations (Scopus)

High-pressure zinc oxide phase as visible-light-active photocatalyst with narrow band gap

Razavi-Khosroshahi, H., Edalati, K., Wu, J., Nakashima, Y., Arita, M., Ikoma, Y., Sadakiyo, M., Inagaki, Y., Staykov, A., Yamauchi, M., Horita, Z. & Fuji, M., Jan 1 2017, In : Journal of Materials Chemistry A. 5, 38, p. 20298-20303 6 p.

Research output: Contribution to journal › Article

Zinc Oxide

Photocatalysts

Zinc oxide

Energy gap

Oxygen vacancies

13 Citations (Scopus)

High strength and high uniform ductility in a severely deformed iron alloy by lattice softening and multimodal-structure formation

Edalati, K., Furuta, T., Daio, T., Kuramoto, S. & Horita, Z., May 2016, In : Materials Research Letters. 3, 4, p. 197-202 6 p.

Research output: Contribution to journal › Article

Iron alloys

Ductility

Grain refinement

Torsional stress

Precipitates

45 Citations (Scopus)

Hydrogen storage performance of TiFe after processing by ball milling

Emami, H., Edalati, K., Matsuda, J., Akiba, E. & Horita, Z., Aug 17 2015, In : Acta Materialia. 88, p. 190-195 6 p.

Research output: Contribution to journal › Article

Hydrogen storage

Ball milling

Chemical activation

Processing

Hydrogen

18 Citations (Scopus)

Impact of severe plastic deformation on microstructure and hydrogen storage of titanium-iron-manganese intermetallics

Edalati, K., Matsuo, M., Emami, H., Itano, S., Alhamidi, A., Staykov, A., Smith, D. J., Orimo, S. I., Akiba, E. & Horita, Z., Nov 1 2016, In : Scripta Materialia. 124, p. 108-111 4 p.

Research output: Contribution to journal › Article

Hydrogen storage

Manganese

Titanium

plastic deformation

Intermetallics

1 Citation (Scopus)

Microstructure formation of high pressure torsion processed (α + γ) two phase stainless steel

Ota, M., Nanya, D., Vajpai, S. K., Ameyama, K., Edalati, K. & Horita, Z., 2017, THERMEC 2016. Trans Tech Publications Ltd, Vol. 879. p. 1365-1368 4 p. (Materials Science Forum; vol. 879).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Stainless Steel

Torsional stress

torsion

stainless steels

Stainless steel

18 Citations (Scopus)

Nanocrystalline steel obtained by mechanical alloying of iron and graphite subsequently compacted by high-pressure torsion

Borchers, C., Garve, C., Tiegel, M., Deutges, M., Herz, A., Edalati, K., Pippan, R., Horita, Z. & Kirchheim, R., Jul 15 2015, In : Acta Materialia. 97, p. 207-215 9 p., 12234.

Research output: Contribution to journal › Article

Graphite

Steel

Mechanical alloying

Torsional stress

Iron

30 Citations (Scopus)

New nanostructured phases with reversible hydrogen storage capability in immiscible magnesium-zirconium system produced by high-pressure torsion

Edalati, K., Emami, H., Ikeda, Y., Iwaoka, H., Tanaka, I., Akiba, E. & Horita, Z., Apr 15 2016, In : Acta Materialia. 108, p. 293-303 11 p.

Research output: Contribution to journal › Article

Hydrogen storage

Zirconium

Torsional stress

Magnesium

Hydrogen

22 Citations (Scopus)

Optical Properties of Nanocrystalline Monoclinic Y₂O₃ Stabilized by Grain Size and Plastic Strain Effects via High-Pressure Torsion

Razavi-Khosroshahi, H., Edalati, K., Emami, H., Akiba, E., Horita, Z. & Fuji, M., Mar 6 2017, In : Inorganic Chemistry. 56, 5, p. 2576-2580 5 p.

Research output: Contribution to journal › Article

Torsional stress

torsion

Plastic deformation

plastics

Optical properties

11 Citations (Scopus)

Phase transformation of germanium by processing through high-pressure torsion: strain and temperature effects

Ikoma, Y., Kumano, K., Edalati, K., Saito, K., Guo, Q. & Horita, Z., Jan 2 2017, In : Philosophical Magazine Letters. 97, 1, p. 27-34 8 p.

Research output: Contribution to journal › Article

torsion

phase transformations

temperature effects

germanium

room temperature

32 Citations (Scopus)

Plastic deformation of BaTiO ₃ ceramics by high-pressure torsion and changes in phase transformations,optical and dielectric properties

Edalati, K., Arimura, M., Ikoma, Y., Daio, T., Miyata, M., Smith, D. J. & Horita, Z., Jul 24 2015, In : Materials Research Letters. 3, 4, p. 216-221 6 p.

Research output: Contribution to journal › Article

Barium titanate

Curie temperature

Torsional stress

Dielectric properties

Powders

31 Citations (Scopus)

Plastic strain and grain size effect on high-pressure phase transformations in nanostructured TiO₂ ceramics

Razavi-Khosroshahi, H., Edalati, K., Arita, M., Horita, Z. & Fuji, M., Nov 1 2016, In : Scripta Materialia. 124, p. 59-62 4 p.

Research output: Contribution to journal › Article

anatase

phase transformations

Plastic deformation

plastics

grain size

14 Citations (Scopus)

Real hydrostatic pressure in high-pressure torsion measured by bismuth phase transformations and FEM simulations

Edalati, K., Lee, D. J., Nagaoka, T., Arita, M., Kim, H. S., Horita, Z. & Pippan, R., Jan 1 2016, In : Materials Transactions. 57, 4, p. 533-538 6 p.

Research output: Contribution to journal › Article

Bismuth

Hydrostatic pressure

hydrostatic pressure

Torsional stress

bismuth

55 Citations (Scopus)

Significance of grain boundaries and stacking faults on hydrogen storage properties of Mg₂Ni intermetallics processed by high-pressure torsion

Hongo, T., Edalati, K., Arita, M., Matsuda, J., Akiba, E. & Horita, Z., Jun 15 2015, In : Acta Materialia. 92, p. 46-54 9 p.

Research output: Contribution to journal › Article

Stacking faults

Hydrogen storage

Torsional stress

Intermetallics

Grain boundaries

13 Citations (Scopus)

Solid-state reactions and hydrogen storage in magnesium mixed with various elements by high-pressure torsion: Experiments and first-principles calculations

Emami, H., Edalati, K., Staykov, A. T., Hongo, T., Iwaoka, H., Horita, Z. & Akiba, E., Jan 1 2016, In : RSC Advances. 6, 14, p. 11665-11674 10 p.

Research output: Contribution to journal › Article

Hydrogen storage

Solid state reactions

Hydrides

Torsional stress

Magnesium

45 Citations (Scopus)

Ultrafine-grained magnesium-lithium alloy processed by high-pressure torsion: Low-temperature superplasticity and potential for hydroforming

Matsunoshita, H., Edalati, K., Furui, M. & Horita, Z., Jul 9 2015, In : Materials Science and Engineering A. 640, p. 443-448 6 p.

Research output: Contribution to journal › Article

lithium alloys

hydroforming

Lithium alloys

superplasticity

Superplasticity

23 Citations (Scopus)

Visible-Light-Driven Photocatalytic Hydrogen Generation on Nanosized TiO₂-II Stabilized by High-Pressure Torsion

Razavi-Khosroshahi, H., Edalati, K., Hirayama, M., Emami, H., Arita, M., Yamauchi, M., Hagiwara, H., Ida, S., Ishihara, T., Akiba, E., Horita, Z. & Fuji, M., Aug 5 2016, In : ACS Catalysis. 6, 8, p. 5103-5107 5 p.

Research output: Contribution to journal › Article

Torsional stress

Hydrogen

Energy gap

Oxygen vacancies

Titanium dioxide