Search Results - "KURISHITA, Hiroaki"

Property change of advanced tungsten alloys due to neutron irradiation by Fukuda, Makoto, Hasegawa, Akira, Tanno, Takashi, Nogami, Shuhei, Kurishita, Hiroaki

“…This study investigates the effect of neutron irradiation on the functional properties of pure tungsten (W) and advanced tungsten alloys (e.g., lanthanum…”
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Close-up tracing of fatigue precrack evolution and reliable fracture toughness evaluation by the precracked specimens in an ITER specification W plate by Tokunaga, Kazutoshi, Matsuo, Satoru, Kurishita, Hiroaki, Toyama, Takeshi, Hasegawa, Makoto, Nakamura, Kazuo

“…•A method for inserting a well defined fatigue precrack in W is established.•Continuous in-situ observations on crack formation and extension during fatigue…”
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The high-flux effect on deuterium retention in TiC and TaC doped tungsten at high temperatures by Zibrov, Mikhail, Bystrov, Kirill, Mayer, Matej, Morgan, Thomas W., Kurishita, Hiroaki

“…Samples made of tungsten (W) doped either with titanium carbide (W-1.1TiC) or tantalum carbide (W-3.3TaC) were exposed to a low-energy (40 eV/D), high-flux…”
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Fatigue pre-cracking and fracture toughness in polycrystalline tungsten and molybdenum by Taguchi, Katsuya, Nakadate, Kazuhito, Matsuo, Satoru, Tokunaga, Kazutoshi, Kurishita, Hiroaki

“…Fatigue pre-cracking performance and fracture toughness in polycrystalline tungsten (W) and molybdenum (Mo) have been investigated in relation to grain…”
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3D-Printed Beam Window for J-PARC COMET Project by Shidara, Hiroyuki, Makimura, Shunsuke, Fukao, Yoshinori, Nagasawa, Yutaka, Onoi, Masahiro, Kurishita, Hiroaki, Kamei, Naoya

“…We have developed the beam windows for the COherent Muon to Electron Transition (COMET) project. The COMET project is under construction at the proton beam…”
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Mechanical properties of a Ni60Pd20P17B3 bulk glassy alloy at cryogenic temperatures by KAWASHIMA, Asahi, YUQIAO ZENG, FUKUHARA, Mikio, KURISHITA, Hiroaki, NISHIYAMA, Nobuyuki, MIKI, Hiroyuki, INOUE, Akihisa

“…Little is known about mechanical properties of bulk glassy alloys (BGAs) at cryogenic temperatures. In this study, we investigated the effects of temperature…”
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Development of High Strength Tungsten/Oxide Dispersion Strengthened Ferritic Steel Joints by Innovative Thermal Stress Relaxation Technique Based on Phase-Transformation-Induced Creep Deformation by Noto, Hiroyuki, Taniguchi, Shuichi, Kurishita, Hiroaki, Matsuo, Satoru, Kimura, Akihiko

“…The realization of fusion reactors rests on the function of the blanket systems with high thermal efficiency consisting of armor and structural materials. The…”
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Effects of plastic working and MA atmosphere on microstructures of recrystallized W–1.1%TiC by Kajioka, Michio, Sakamoto, Tatsuaki, Nakai, Kiyomichi, Kobayashi, Sengo, Kurishita, Hiroaki, Matsuo, Satoru, Arakawa, Hideo

“…Effects of plastic working and the mechanical-alloying atmosphere on microstructures of ultra-fine-grained, particle-dispersed W–1.1%TiC compacts, which were…”
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Evaluation of Feasibility of Tungsten/Oxide Dispersion Strengthened Steel Bonding with Vanadium Insert by Noto, Hiroyuki, Kimura, Akihiko, Kurishita, Hiroaki, Matsuo, Satoru, Nogami, Shuhei

“…A diffusion bonding (DB) technique to reduce thermal expansion coefficient mismatch between tungsten (W) and oxide dispersion strengthened ferritic steel…”
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Fracture Toughness of Zr55Al10Ni5Cu30 Bulk Metallic Glass by 3-Point Bend Testing by Kawashima, Asahi, Kurishita, Hiroaki, Kimura, Hisamichi, Zhang, Tao, Inoue, Akihisa

“…In order to evaluate the fracture toughness of a Zr55Al10Ni5Cu30 bulk metallic glass and to identify possible sources associated with data variability of…”
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Development of advanced materials for spallation neutron sources and radiation damage simulation based on multi-scale models by Kawai, Masayoshi, Kurishita, Hiroaki, Kokawa, Hiroyuki, Watanabe, Seiichi, Sakaguchi, Norihito, Kikuchi, Kenji, Saito, Shigeru, Yoshiie, Toshimasa, Iwase, Hiroshi, Ito, Takahiro, Hashimoto, Satoshi, Kaneko, Yoshihisa, Futakawa, Masatoshi, Ishino, Shiori

“…This report describes the status review of the JSPS Grant Team to develop advanced materials for the spallation neutron sources and modeling of radiation…”
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Enhanced Tensile Strength and Plasticity of Zr-Cu-Al Bulk Glassy Alloys at Cryogenic Temperatures by Kawashima, Asahi, Yokoyama, Yoshihiko, Seki, Ichiro, Kurishita, Hiroaki, Fukuhara, Mikio, Kimura, Hisamichi, Inoue, Akihisa

“…No data are available about mechanical behavior of bulk glassy alloys (BGAs) in tension at cryogenic temperatures. In this study, we investigated the effect of…”
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Low-Temperature Strengths and Ductility of Various Tungsten Sheets by Hiraoka, Yutaka, Kurishita, Hiroaki

“…We used three kinds of tungsten sheets in this study. First, we examined microstructure such as grain size distribution using an optical microscope. Secondly,…”
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Microstructures and Deuterium-Retention Behavior of Tungsten Exposed to D+(He and/or Be) Mixture Plasmas by Miyamoto, Mitsutaka, Nishijima, Daisuke, Baldwin, Matthew J., Doerner, Russell P., Ueda, Yoshio, Sagara, Akio, Kurishita, Hiroaki

“…ITER-relevant mixed species (D, He, Be) plasma exposure experiments on microstructural changes and their impacts on D retention behavior in W are reviewed. It…”
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Influences of Temperature and Strain Rate on Mechanical Behavior of a Cu45Zr45Al5Ag5 Bulk Glassy Alloy by Okuno, Takahiro, Kawashima, Asahi, Kurishita, Hiroaki, Zhang, Wei, Kimura, Hisamichi, Inoue, Akihisa

“…Since the invention of bulk glassy alloys, a number of studies have been performed at ambient temperatures or above. However, little is known about mechanical…”
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Study on neutron irradiation effect of superconductors and installation of 15.5T magnet in hot laboratory at IMR in Tohoku University by Nishimura, Arata, Takeuchi, Takao, Nishijima, Shigehiro, Ochiai, Kentaro, Nishijima, Gen, Watanabe, Kazuo, Narui, Minoru, Kurishita, Hiroaki, Shikama, Tatsuo

“…A fusion reactor will yield a lot of high energy neutrons, and some of them will stream out of a plasma vacuum vessel and penetrate a blanket system and reach…”
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Cu45Zr45Al5Ag5 Bulk Glassy Alloy with Enhanced Compressive Strength and Plasticity at Cryogenic Temperature by Kawashima, Asahi, Okuno, Takahiro, Kurishita, Hiroaki, Zhang, Wei, Kimura, Hisamichi, Inoue, Akihisa

“…Compressive tests were made for the as-cast Cu45Zr45Al5Ag5 bulk glassy alloy rods with a diameter of 3 mm at 298 and 77 K, at an initial strain rate of 5×10−4…”
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Effect of Chloride Ion Concentration on the Fatigue Crack Growth Rate of a Zr55Al10Ni5Cu30 Bulk Metallic Glass by Kawashima, Asahi, Kurishita, Hiroaki, Kimura, Hisamichi, Inoue, Akihisa

“…The effect of chloride ions on the fatigue crack growth rates of a Zr55Al10Ni5Cu30 bulk glassy alloy has been investigated by using a 3-point bending test…”
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High Temperature Deformation of a Fine-Grained and Particle-Dispersed V-2.3%Y-4%Ti-3%Mo Alloy by Sakamoto, Tatsuaki, Kurishita, Hiroaki, Kobayashi, Sengo, Nakai, Kiyomichi, Arakawa, Hideo, Matsui, Hideki

“…The high temperature deformation behavior of a fine-grained and particle-dispersed V-2.3%Y-4%Ti-3%Mo (mass%) alloy was investigated. The alloy was fabricated…”
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Microstructure and Bend Ductility of W-0.3 mass%TiC Alloys Fabricated by Advanced Powder-Metallurgical Processing by Ishijima, Yasuhiro, Kurishita, Hiroaki, Arakawa, Hideo, Hasegawa, Masayuki, Hiraoka, Yutaka, Takida, Tomohiro, Takebe, Katsushi

“…Low temperature embrittlement, recrystallization embrittlement and radiation embrittlement in tungsten and its alloys are critical issues for use as high heat…”
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