World's Best Scientists 2026 revealed!
Eiji Akiyama

Eiji Akiyama

D-Index & Metrics

Materials Science

D-Index
58
Citations
10686
World Ranking
7773
National Ranking
435

Eiji Akiyama publication distribution in Materials Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Materials Science in 2026. The highlighted bar marks where Eiji Akiyama sits on this spectrum.

50–69 publications: 28 scientists 70–89 publications: 152 scientists 90–109 publications: 356 scientists 110–129 publications: 487 scientists 130–149 publications: 723 scientists 150–169 publications: 835 scientists 170–189 publications: 850 scientists 190–209 publications: 891 scientists 210–229 publications: 862 scientists 230–249 publications: 766 scientists 250–269 publications: 726 scientists 270–289 publications: 665 scientists 290–309 publications: 593 scientists 310–329 publications: 537 scientists 330–349 publications: 477 scientists 350–369 publications: 440 scientists 370–389 publications: 356 scientists 390–409 publications: 321 scientists 410–429 publications: 256 scientists 430–449 publications: 246 scientists 450–469 publications: 216 scientists 470–489 publications: 212 scientists 490–509 publications: 174 scientists 510–529 publications: 194 scientists 530–549 publications: 162 scientists 550–569 publications: 131 scientists 570–589 publications: 111 scientists 590–609 publications: 103 scientists 610–629 publications: 99 scientists 630–649 publications: 77 scientists 650–669 publications: 92 scientists 670–689 publications: 56 scientists 690–709 publications: 53 scientists 710–729 publications: 53 scientists 730–749 publications: 38 scientists 750–769 publications: 52 scientists 770–789 publications: 43 scientists 790–809 publications: 38 scientists 810–829 publications: 34 scientists 830–849 publications: 25 scientists 850–869 publications: 18 scientists 870–889 publications: 20 scientists 890–909 publications: 24 scientists 910–929 publications: 27 scientists 930–949 publications: 20 scientists 950–969 publications: 17 scientists 970–989 publications: 10 scientists 990–1,009 publications: 16 scientists 1,010–1,029 publications: 13 scientists 1,030–1,049 publications: 12 scientists 1,050–1,069 publications: 9 scientists 1,070–1,089 publications: 8 scientists 1,090–1,109 publications: 7 scientists 1,110–1,129 publications: 9 scientists 1,130–1,149 publications: 2 scientists 1,150–1,162 publications: 5 scientists 1,163+ publications: 100 scientists
50 publications 1,163+

This scientist: 297 publications — 59th percentile

59% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,163 publications or more.

Eiji Akiyama D-index placement in Materials Science in 2026

The chart shows the D-index (discipline H-index) distribution of Materials Science scientists ranked by Research.com in 2026. The highlighted bar marks where Eiji Akiyama sits on this spectrum.

40–41 D-Index: 211 scientists 42–43 D-Index: 450 scientists 44–45 D-Index: 612 scientists 46–47 D-Index: 612 scientists 48–49 D-Index: 598 scientists 50–51 D-Index: 657 scientists 52–53 D-Index: 667 scientists 54–55 D-Index: 621 scientists 56–57 D-Index: 597 scientists 58–59 D-Index: 610 scientists 60–61 D-Index: 587 scientists 62–63 D-Index: 606 scientists 64–65 D-Index: 533 scientists 66–67 D-Index: 490 scientists 68–69 D-Index: 469 scientists 70–71 D-Index: 378 scientists 72–73 D-Index: 421 scientists 74–75 D-Index: 359 scientists 76–77 D-Index: 323 scientists 78–79 D-Index: 299 scientists 80–81 D-Index: 230 scientists 82–83 D-Index: 210 scientists 84–85 D-Index: 195 scientists 86–87 D-Index: 203 scientists 88–89 D-Index: 175 scientists 90–91 D-Index: 175 scientists 92–93 D-Index: 142 scientists 94–95 D-Index: 121 scientists 96–97 D-Index: 117 scientists 98–99 D-Index: 107 scientists 100–101 D-Index: 88 scientists 102–103 D-Index: 85 scientists 104–105 D-Index: 68 scientists 106–107 D-Index: 62 scientists 108–109 D-Index: 57 scientists 110–111 D-Index: 45 scientists 112–113 D-Index: 49 scientists 114–115 D-Index: 50 scientists 116–117 D-Index: 34 scientists 118–119 D-Index: 38 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 29 scientists 124–125 D-Index: 28 scientists 126–127 D-Index: 24 scientists 128–129 D-Index: 33 scientists 130–131 D-Index: 28 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 20 scientists 136–137 D-Index: 23 scientists 138–139 D-Index: 17 scientists 140–141 D-Index: 12 scientists 142–143 D-Index: 17 scientists 144–145 D-Index: 21 scientists 146–147 D-Index: 13 scientists 148–149 D-Index: 11 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 13 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 4 scientists 162–163 D-Index: 4 scientists 164 D-Index: 3 scientists 165+ D-Index: 98 scientists
40 D-Index 165+

This scientist: 58 D-Index — 41st percentile

41% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 165 D-Index or more.

Overview

Eiji Akiyama is affiliated with Tohoku University in Japan and has a substantial research profile primarily focused on materials science and engineering. Their scholarly work addresses topics related to hydrogen embrittlement, corrosion behaviors in metals, and microstructural analysis of metallic materials.

The main fields of study covered by Akiyama include:

  • Materials Science
  • Engineering

Within these broad fields, their research delves into several subfields, such as:

  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry
  • Mechanics of Materials
  • Aerospace Engineering

Akiyama's research topics concentrate on:

  • Hydrogen embrittlement and corrosion behaviors in metals
  • Microstructure and mechanical properties of steels
  • Corrosion behavior and inhibition
  • Welding techniques and residual stresses
  • Fatigue and fracture mechanics
  • Metal alloys wear and properties
  • Nuclear materials and properties

The scientist has published extensively in a number of journals, with notable frequent publication venues as:

  • ISIJ International
  • Tetsu-to-Hagane
  • International Journal of Hydrogen Energy
  • Corrosion Science
  • Metallurgical and Materials Transactions A

Frequent coauthors who have collaborated with Akiyama include:

  • Motomichi Koyama
  • Tomohiko Hojo
  • Saya Ajito
  • Hiroshi Kakinuma
  • Yuki Shibayama

Representative recent papers published by Akiyama include:

  • Review of Hydrogen Embrittlement in Metals: Hydrogen Diffusion, Hydrogen Characterization, Hydrogen Embrittlement Mechanism and Prevention, 2020, Acta Metallurgica Sinica (English Letters)
  • Mechanisms of hydrogen embrittlement in high-strength aluminum alloys containing coherent or incoherent dispersoids, 2021, Corrosion Science
  • Effects of Mn Content and Grain Size on Hydrogen Embrittlement Susceptibility of Face-Centered Cubic High-Entropy Alloys, 2020, Metallurgical and Materials Transactions A
  • Effect of hydrogen charging time on hydrogen blister and hydrogen-induced cracking of pure iron, 2021, Corrosion Science
  • Effect of austempering treatment on the microstructure and mechanical properties of 0.4C-1.5Si-1.5Mn TRIP-aided bainitic ferrite steel, 2021, Materials Science and Engineering A

Best Publications

  • Hydrogen-assisted decohesion and localized plasticity in dual-phase steel

    Motomichi Koyama;Motomichi Koyama;Cemal Cem Tasan;Eiji Akiyama;Kaneaki Tsuzaki;Kaneaki Tsuzaki

  • Effect of hydrogen on the fracture behavior of high strength steel during slow strain rate test

    Maoqiu Wang;Eiji Akiyama;Kaneaki Tsuzaki

  • Review of Hydrogen Embrittlement in Metals: Hydrogen Diffusion, Hydrogen Characterization, Hydrogen Embrittlement Mechanism and Prevention

    Xinfeng Li;Xinfeng Li;Xianfeng Ma;Jin Zhang;Eiji Akiyama

  • Overview of hydrogen embrittlement in high-Mn steels

    Motomichi Koyama;Eiji Akiyama;Young Kook Lee;Dierk Raabe

  • Effect of hydrogen and stress concentration on the notch tensile strength of AISI 4135 steel

    Maoqiu Wang;Maoqiu Wang;Eiji Akiyama;Kaneaki Tsuzaki

  • Hydrogen-assisted failure in a twinning-induced plasticity steel studied under in situ hydrogen charging by electron channeling contrast imaging

    Motomichi Koyama;Motomichi Koyama;Eiji Akiyama;Kaneaki Tsuzaki;Kaneaki Tsuzaki;Dierk Raabe

  • Hydrogen embrittlement associated with strain localization in a precipitation-hardened Fe–Mn–Al–C light weight austenitic steel

    Motomichi Koyama;Motomichi Koyama;Hauke Springer;Sergiy Vasil´ović Merzlikin;Kaneaki Tsuzaki;Kaneaki Tsuzaki

  • The role of corrosion-resistant alloying elements in passivity

    K. Hashimoto;K. Asami;A. Kawashima;H. Habazaki

  • Hydrogen-induced cracking at grain and twin boundaries in an Fe–Mn–C austenitic steel

    Motomichi Koyama;Motomichi Koyama;Eiji Akiyama;Takahiro Sawaguchi;Dierk Raabe

  • Recent progress in microstructural hydrogen mapping in steels: quantification, kinetic analysis, and multi-scale characterisation

    Motomichi Koyama;Michael Rohwerder;Cemal Cem Tasan;Asif Bashir

  • Determination of the critical hydrogen concentration for delayed fracture of high strength steel by constant load test and numerical calculation

    Maoqiu Wang;Maoqiu Wang;Eiji Akiyama;Kaneaki Tsuzaki

  • Hydrogen degradation of a boron-bearing steel with 1050 and 1300MPa strength levels

    Maoqiu Wang;Maoqiu Wang;Eiji Akiyama;Kaneaki Tsuzaki

  • Hydrogen embrittlement in a Fe–Mn–C ternary twinning-induced plasticity steel

    Motomichi Koyama;Motomichi Koyama;Eiji Akiyama;Kaneaki Tsuzaki;Kaneaki Tsuzaki

  • Evaluation of hydrogen entry into high strength steel under atmospheric corrosion

    Eiji Akiyama;Katsuhiro Matsukado;Maoqiu Wang;Kaneaki Tsuzaki

  • Global CO2 recycling - Novel materials and prospect for prevention of global warming and abundant energy supply

    K Hashimoto;M Yamasaki;K Fujimura;T Matsui

  • Anodically deposited manganese oxide and manganese-tungsten oxide electrodes for oxygen evolution from seawater

    K. Izumiya;E. Akiyama;H. Habazaki;N. Kumagai

  • Crosshead speed dependence of the notch tensile strength of a high strength steel in the presence of hydrogen

    Maoqiu Wang;Eiji Akiyama;Kaneaki Tsuzaki

  • Anodically deposited manganese-molybdenum oxide anodes with high selectivity for evolving oxygen in electrolysis of seawater

    K. Fujimura;K. Izumiya;A. Kawashima;Eiji Akiyama

  • Effect of hydrogen content on the embrittlement in a Fe–Mn–C twinning-induced plasticity steel

    Motomichi Koyama;Motomichi Koyama;Eiji Akiyama;Kaneaki Tsuzaki;Kaneaki Tsuzaki

  • Hydrogen-assisted quasi-cleavage fracture in a single crystalline type 316 austenitic stainless steel

    Motomichi Koyama;Eiji Akiyama;Takahiro Sawaguchi;Kazuyuki Ogawa

  • Characterization of sputter-deposited Ni-Mo and Ni-W alloy electrocatalysts for hydrogen evolution in alkaline solution

    Asahi Kawashima;Eiji Akiyama;Hiroki Habazaki;Koji Hashimoto

Frequent Co-Authors

Koji Hashimoto
Koji Hashimoto Tohoku University
Hiroki Habazaki
Hiroki Habazaki Hokkaido University
Katsuhiko Asami
Katsuhiko Asami Tohoku University
Asahi Kawashima
Asahi Kawashima Tohoku University
Kaneaki Tsuzaki
Kaneaki Tsuzaki National Institute for Materials Science
Motohide Tamura
Motohide Tamura University of Tokyo
Gillian R. Knapp
Gillian R. Knapp Princeton University
Dierk Raabe
Dierk Raabe Max Planck Institute for Iron Research
Wolfgang Brandner
Wolfgang Brandner Max Planck Society
Toru Yamada
Toru Yamada Japan Aerospace Exploration Agency

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