• 505 Citations
  • 13 h-Index
20082020

Research output per year

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Research Output

  • 505 Citations
  • 13 h-Index
  • 38 Article
  • 13 Conference contribution
  • 4 Conference article
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Conference contribution
2019

Change of crack initiation and propagation modes in hydrogenrelated failure of a precipitation-strengthened NI-based superalloy 718 under internal and external hydrogen conditions

Ogawa, Y., Takakuwa, O., Okazaki, S., Matsuoka, S. & Matsunaga, H., Jan 1 2019, Materials and Fabrication. American Society of Mechanical Engineers (ASME), (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; vol. 6B-2019).

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

Fracture and deformation behavior in slow-strain-rate tensile testing of Cu-Ni alloy with internal hydrogen

Wada, K., Yamabe, J., Ogawa, Y., Takakuwa, O., Iijima, T. & Matsunaga, H., Jan 1 2019, Materials and Fabrication. American Society of Mechanical Engineers (ASME), (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; vol. 6B-2019).

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

Temperature dependence of fatigue crack growth in low-carbon steel under gaseous hydrogen

Takakuwa, O., Ogawa, Y., Okazaki, S., Matsunaga, H. & Matsuoka, S., Jan 1 2019, Materials and Fabrication. American Society of Mechanical Engineers (ASME), (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; vol. 6B-2019).

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

2018

Hydrogen-assisted fatigue crack propagation in a commercially pure BCC iron

Birenis, D., Ogawa, Y., Matsunaga, H., Takakuwa, O., Prytz, Ø., Yamabe, J. & Thøgersen, A., Jan 1 2018, Materials and Fabrication. American Society of Mechanical Engineers (ASME), (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; vol. 6B-2018).

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

Temperature dependence of fatigue crack growth in low-alloy steel under gaseous hydrogen

Takakuwa, O., Yoshikawa, M., Matsuoka, S., Yamabe, J., Okazaki, S. & Matsunaga, H., Jan 1 2018, Materials and Fabrication. American Society of Mechanical Engineers (ASME), (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; vol. 6B-2018).

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

2017

Hydrogen-assisted degradation of high-strength stainless steel with a newly developed aluminum-based coating in high-pressure hydrogen gas environment

Yamabe, J., Takakuwa, O., Awane, T. & Matsuoka, S., Jan 1 2017, Materials and Fabrication. American Society of Mechanical Engineers (ASME), (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; vol. 6B-2017).

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

1 Citation (Scopus)

Recent progress on interpretation of tensile ductility loss for various austenitic stainless steels with external and internal hydrogen

Takakuwa, O., Yamabe, J., Matsunaga, H., Furuya, Y. & Matsuoka, S., Jan 1 2017, Materials and Fabrication. American Society of Mechanical Engineers (ASME), (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; vol. 6B-2017).

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

3 Citations (Scopus)
2016

Preventing hydrogen diffusion in stainless steel by cavitating jet in air

Takakuwa, O. & Soyama, H., Jan 1 2016, 23rd International Conference on Water Jetting 2016. BHR Group Limited, p. 215-221 7 p. (23rd International Conference on Water Jetting 2016).

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

1 Citation (Scopus)
2014

Effect of hydrogen on the micro- and macro-strain near the surface of austenitic stainless steel

Takakuwa, O., Mano, Y. & Soyama, H., Jan 1 2014, Materials Science and Engineering Technology. Trans Tech Publications Ltd, p. 1298-1302 5 p. (Advanced Materials Research; vol. 936).

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

Effect of indentation load on vickers hardness of austenitic stainless steel after hydrogen charging

Takakuwa, O., Mano, Y. & Soyama, H., Jan 1 2014, Materials and Fabrication. American Society of Mechanical Engineers (ASME), Vol. 6B.

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

1 Citation (Scopus)
2012

Effect of nozzle shape for high injection pressure on aggressivity of cavitating jet

Soyama, H., Takakuwa, O. & Naito, A., 2012, BHR Group - 21st International Conference on Water Jetting: Looking to the Future, Learning from the Past. p. 367-378 12 p. (BHR Group - 21st International Conference on Water Jetting: Looking to the Future, Learning from the Past).

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

1 Citation (Scopus)
2011

Suppression of fatigue crack growth in austenite stainless steel by cavitation peening

Takakuwa, O., Nishikawa, M. & Soyama, H., Jan 6 2011, Advances in Fracture and Damage Mechanics IX, FDM 2010. p. 641-644 4 p. (Key Engineering Materials; vol. 452-453).

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

5 Citations (Scopus)
2008

Release of micro strain in tool alloy steel by a cavitating jet in air

Soyama, H., Yamada, N., Takakuwa, O., Sekine, Y. & Mikami, M., Dec 1 2008, 19th International Conference on Water Jetting. p. 219-228 10 p. (19th International Conference on Water Jetting).

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

1 Citation (Scopus)