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Fingerprint Dive into the research topics where Osamu Takakuwa is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

  • 9 Similar Profiles
Hydrogen Engineering & Materials Science
Shot peening Engineering & Materials Science
Fatigue crack propagation Engineering & Materials Science
Cavitation Engineering & Materials Science
Austenitic stainless steel Engineering & Materials Science
peening Physics & Astronomy
hydrogen Physics & Astronomy
cavitation flow Physics & Astronomy

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Research Output 2008 2019

  • 378 Citations
  • 12 h-Index
  • 34 Article
  • 13 Conference contribution
  • 3 Conference article

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

Superalloys
Crack initiation
Crack propagation
Hydrogen
Ductility
1 Citation (Scopus)

Comparative study of hydrogen-induced intergranular fracture behavior in Ni and Cu–Ni alloy at ambient and cryogenic temperatures

Wada, K., Yamabe, J., Ogawa, Y., Takakuwa, O., Iijima, T. & Matsunaga, H., Oct 24 2019, In : Materials Science and Engineering A. 766, 138349.

Research output: Contribution to journalArticle

cryogenic temperature
Cryogenics
ambient temperature
Hydrogen
hydrogen embrittlement
1 Citation (Scopus)

Effect of defects on the fatigue limit of Ni-based superalloy 718 with different grain sizes

Kevinsanny, Okazaki, S., Takakuwa, O., Ogawa, Y., Okita, K., Funakoshi, Y., Yamabe, J., Matsuoka, S. & Matsunaga, H., May 1 2019, In : Fatigue and Fracture of Engineering Materials and Structures. 42, 5, p. 1203-1213 11 p.

Research output: Contribution to journalArticle

Superalloys
Fatigue of materials
Defects
Cracks
Microstructure

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

Tensile testing
Strain rate
Hydrogen
Temperature
Ductile fracture

Hydrogen-assisted crack propagation in α-iron during elasto-plastic fracture toughness tests

Birenis, D., Ogawa, Y., Matsunaga, H., Takakuwa, O., Yamabe, J., Prytz, Ø. & Thøgersen, A., May 22 2019, In : Materials Science and Engineering A. 756, p. 396-404 9 p.

Research output: Contribution to journalArticle

crack propagation
fracture strength
Fracture toughness
Hydrogen
Crack propagation