Hirotoshi Enoki

Effects of hydrogen and casting defects on the fatigue behavior of Cu–Al–Ni–Fe–Mn cast alloy

Junichiro Yamabe, Takafumi Yano, Kojiro Fujiyama, Takashi Iijima et autres

Fatigue tests on Cu–Al–Ni–Fe–Mn cast alloys were conducted under hydrogen-free and hydrogen-precharged conditions. The hydrogen-precharged specimens were exposed to hydrogen gas at 100 MPa and 270 °C for 200 h to ensure a uniform hydrogen distribution. Rotating-bending fatigue tests were performed at …

jp (code pays fourni par la source)

Hydrogen-induced degradation of SUS304 austenitic stainless steel at cryogenic temperatures

Kentaro Wada, M. Komatsu, Yumie Ono, Junichiro Yamabe et autres

jp (code pays fourni par la source)

Evaluation of hydrogen-induced ductility loss in nickel using various hydrogen embrittlement testing methods:

Kento Hashiguchi, Kotaro Sano, Kentaro Wada, Takashi Iijima et autres

To compare the hydrogen compatibility of materials determined with different techniques, slow strain-rate tensile (SSRT) tests were conducted with three different techniques at temperatures ranging from 77 K to room temperature (RT): external hydrogen testing of solid specimens (S-E), internal hydrogen testing …

jp (code pays fourni par la source)

Determination of hydrogen compatibility for Cu-Al-Ni-Fe-Mn cast alloys prepared by varying Al and Ni contents

Junichiro Yamabe, Ren Yoshimoto, Kentaro Wada, Takafumi Yano et autres

jp (code pays fourni par la source)

Evaluation of Intermediate Phases During Martensitic Transformation in Austenitic Stainless Steels for Hydrogen Embrittlement Investigation

Sho Takeda, Tetsuya Uchimoto, Damien Fabrègue, Takashi Iijima et autres

jp, fr (code pays fourni par la source)

Hydrogenation behavior of a C14 Laves phase under ultra-high hydrogen pressure

Véronique Charbonnier, Reina Utsumi, Yuki Nakahira, Hirotoshi Enoki et autres

jp (code pays fourni par la source)

Hydrogen-induced intergranular cracking of pure nickel under various strain rates and temperatures in gaseous hydrogen environment

Kentaro Wada, C. Shibata, Hirotoshi Enoki, Takashi Iijima et autres

jp (code pays fourni par la source)

Improvement of hydrogenation sorption properties of Ti0.90V0.30Mn1.00Ni0.80 for ultra-high pressure metal-hydride compressor

Véronique Charbonnier, Hirotoshi Enoki, Kohta Asano, Hyosim Kim et autres

jp (code pays fourni par la source)

Characterization of fatigue crack of hydrogen-charged austenitic stainless steel by electromagnetic and ultrasonic techniques

Sho Takeda, Yoshikazu Ohara, Tetsuya Uchimoto, Hirotoshi Enoki et autres

jp, fr (code pays fourni par la source)

Evaluation of the Hydrogen Barrier Properties of Chromium Oxide Films Deposited on SUS304 Austenitic Stainless Steels

Kazuyoshi Kawami, Atsushi Kinoshita, Hisashi Yamanaka, Yoji Fukuda et autres

Abstract Austenitic stainless steels including type SUS304 of the Japanese Industrial Standard (JIS), which is similar to ASME Type 304 SS, are candidate materials for the various facilities of high-pressure gaseous hydrogen, such as a hydrogen station containers and piping. To prevent …

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Tuning the hydrogenation properties of Ti1+Cr2-Mn laves phase compounds for high pressure metal-hydride compressors

Véronique Charbonnier, Hirotoshi Enoki, Kohta Asano, Hyosim Kim et autres

jp (code pays fourni par la source)

Fracture toughness of aluminum alloys in air and 115 MPa hydrogen gas and strength design of thick-walled cylinder

Saburo MATSUOKA, Takashi Iijima, Hirotoshi Enoki, Satoko YOSHIDA et autres

The fracture toughness and toughening mechanism of six aluminum alloys, 5083-O, 6061-T6, 6066-T6, 7N01-T5, 7N01-T6 and 7075-T6, were examined in air and 115 MPa hydrogen gas. In both the environments, tentative fracture toughness, KQ, was about twice higher in 7N01-T5 and 7N01-T6 …

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