Kyushu University Academic Staff Educational and Research Activities Database
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Yuhei Ogawa Last modified date:2021.06.08

Assistant Professor / Hydrogen Utilization Engineering
Department of Mechanical Engineering
Faculty of Engineering


Graduate School
Undergraduate School


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Homepage
https://kyushu-u.pure.elsevier.com/en/persons/yuhei-ogawa
 Reseacher Profiling Tool Kyushu University Pure
Phone
092-802-3287
Fax
092-802-0001
Academic Degree
Doctor of Engineering
Country of degree conferring institution (Overseas)
No
Field of Specialization
Materials strength, Metal Fatigue, Hydrogen Embrittlement, Materials Science and Engineering
Total Priod of education and research career in the foreign country
00years00months
Research
Research Interests
  • Evaluation of the strength properties of precipitation-hardened Ni-based superalloys in hydrogenating environment
    keyword : Ni-based superalloy, Hydrogen embrittlement
    2020.04~2023.03.
  • Development of novel austenitic stainless steels utilizing hydrogen as a beneficial alloying element
    keyword : Strength-ductility balance, Hydrogen embrittlment, Materials Engineering
    2020.04~2023.03.
  • Understanding the mechanisms of fatigue crack growth in body-centered-cubic steels under ultra high-pressure gaseous hydrogen environment
    keyword : Iron and steels, Hydrogen embrittlement, Fatigue crack growth
    2020.04~2023.03.
Academic Activities
Papers
1. Yuhei Ogawa, Osamu Takakuwa, Saburo Okazaki, Koichi Okita, Yusuke Funakoshi, Hisao Matsunaga, Saburo Matsuoka, Pronounced transition of crack initiation and propagation modes in the hydrogen-related failure of a Ni-based superalloy 718 under internal and external hydrogen conditions, Corrosion Science, 10.1016/j.corsci.2019.108186, 161, 108186, 2019.12.
2. Yuhei Ogawa, Saburo Okazaki, Osamu Takakuwa, Hisao Matsunaga, The roles of internal and external hydrogen in the deformation and fracture processes at the fatigue crack tip zone of metastable austenitic stainless steels, Scripta Materialia, 10.1016/j.scriptamat.2018.08.003, 157, 95-99, 2018.12.
3. Domas Birenis, Yuhei Ogawa, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz, Annett Thøgersen, Interpretation of hydrogen-assisted fatigue crack propagation in BCC iron based on dislocation structure evolution around the crack wake, Acta Materialia, 10.1016/j.actamat.2018.06.041, 156, 245-253, 2018.09.
4. Yuhei Ogawa, Domas Birenis, Hisao Matsunaga, Osamu Takakuwa, Junichiro Yamabe, Øystein Prytz, Annett Thøgersen, The role of intergranular fracture on hydrogen-assisted fatigue crack propagation in pure iron at a low stress intensity range, Materials Science and Engineering A, 10.1016/j.msea.2018.07.01, 733, 316-328, 2018.08.
5. Yuhei Ogawa, Domas Birenis, Hisao Matsunaga, Annett Thogersen, Oystein Prytz, Osamu Takakuwa, Junichiro Yamabe, Multi-scale observation of hydrogen-induced, localized plastic deformation in fatigue-crack propagation in a pure iron, Scripta Materialia, 10.1016/j.scriptamat.2017.06.037, 140, 13-17, 2017.11.
Works, Software and Database
1. .
Presentations
1. Yuhei Ogawa, Osamu Takakuwa, Saburo Okazaki, Saburo Matsuoka, Hisao Matsunaga, Change of crack initiation and propagation modes in hydrogen-related failure of a precipitation-strengthened Ni-based superalloy 718 under internal and external hydrogen conditions, ASME 2019 Pressure Vessels & Piping Conference (PVP2019), 2019.07.
2. Yuhei Ogawa, Interpretation of hydrogen-assisted fatigue crack propagation in a pure BCC iron based on crack tip plasticity evolution, HYDROGENIUS, I2CNER & HYDROMATE Joint Research Symposium, 2018.02.