Oral presentation

[1O01-07] Tungsten Materials (Behavior of Hydrogen Isotope)

Wed. Mar 20, 2019 10:00 AM - 11:55 AM Room O (Common Education Bildg. 2 4F No.46)

Chair:Takeshi Toyama(Tohoku Univ.)

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10:00 AM - 10:15 AM

[1O01] Comparison of hydrogen isotope retention in divertor tiles of JET with ITER-Like Wall exposed during 2011-2012 and 2015-2016 campaigns

*Yasuhisa Oya¹, Suguru Masuzaki², Masayuki Tokitani², Meko Nakata¹, Fei Sun¹, Makoto Oyaidzu³, Takumi Hayashi³, Nobuyuki Asakura³, Teppei Otsuka⁴, Anna M. Widdowson⁵ (1. Shizuoka Univ., 2. NIFS, 3. QST, 4. Kindai Univ., 5. Culham Science Centre)

10:15 AM - 10:30 AM

[1O02] Evaluation of surface and bulk defect distribution influence on deuterium retention in damaged tungsten

*Takuro Wada¹, Akihiro Togari², moeko nakata², Mingzhong Zhao², Fei Sun¹, Yuji Hatano³, Yasuhisa Oya¹ (1. Faculty of Science, Shizuoka University, 2. Graduate School of Science and Technology, Shizuoka University, 3. Hydrogen Isotope Research Center, University of Toyama)

10:30 AM - 10:45 AM

[1O03] Defect distribution influence on retention behavior in deuterium plasma implanted tungsten irradiated by neutron and Fe ion

*Shota Yamazaki¹, Akihiro Togari², Moeko Nakata², Mingzhong Zhao², Fei Sun¹, Tatsuya Kuwabara³, Yuji Hatano⁴, Takeshi Toyama⁵, Yasuhisa Oya² (1. Fac. Sci., Shizuoka Univ., 2. Grad. Sch. Sci. Tech., Shizuoka Univ., 3. Grad. Sch. Eng., Nagoya Univ., 4. HIRC, Univ. of Toyama, 5. IMR, Tohoku Univ.)

10:45 AM - 11:00 AM

[1O04] Impact of helium irradiation and damage introduction on hydrogen isotope retention behaviors in tungsten

*Fei Sun¹, Akihiro Togari², Moeko Nakata², Mingzhong Zhao², Sosuke Kondo³, Tatsuya Hinoki⁴, Yasuhisa Oya² (1. Faculty of Science, Shizuoka University, 2. Graduate School of Science and Technology, Shizuoka University, 3. Institute for Materials Research, Tohoku University, 4. Institute of Advanced Energy, Kyoto University)

11:00 AM - 11:15 AM

[1O05] Deuterium permeation behavior in rolled W foil and forged W rod studied by gas driven permeation method

*Mingzhong Zhao¹, Moeko Nakata¹, Akihiro Togari¹, Fei Sun¹, Yasuhisa Oya¹ (1. Shizuoka Univ.)

11:15 AM - 11:30 AM

[1O06] Influence of long discharge on hydrogen retention capacity of tungsten exposed to hydrogen plasma in QUEST

*koike ayaka¹, togari akihiro², nakata moeko², zhao mingzhong², sun fei¹, yosida naoaki³, hanada kazuaki³, ooya yasuhisa¹ (1. Faculty of science,Shizuoka uni., 2. Graduate school of science and Technology, Shizuoka univ., 3. Research Institute for Applied Mechanics, Kyushu uni.)

11:30 AM - 11:45 AM

[1O07] Hydrogen isotope retention in W-based high entropy alloys

*Heun Tae Lee¹, Ho Jin Ryu², Ryuta Kasada³, Kenzo Ibano¹, Yoshio Ueda¹ (1. Graduate School of Engineering, Osaka University, 2. Korea Advanced Institute of Science and Technology, 3. Institute of Materials Research, Tohoku University)

Time reserved for Chair （11:45 AM - 11:55 AM）

Oral presentation

[1O08-12] Development of Tungsten Alloys and Composites

Wed. Mar 20, 2019 2:45 PM - 4:05 PM Room O (Common Education Bildg. 2 4F No.46)

Chair:Tatsuya Hinoki(Kyoto Univ.)

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2:45 PM - 3:00 PM

[1O08] Development of Tungsten Alloys and Composites for Fusion Reactor

(1) Mechanical Properties and Recrystallization Behavior of Tungsten-Rhenium Alloys

*Shotaro Watanabe¹, Itsuki Terada¹, Shuhei Nogami¹, Jens Reiser², Michael Rieth², Takeshi Miyazawa¹, Akira Hasegawa¹ (1. Tohoku University, 2. Karlsruhe Institute of Technology)

3:00 PM - 3:15 PM

[1O09] Development of Tungsten Alloys and Composites for Fusion Reactor

(2) Mechanical Properties and Recrystallization Behavior of Oxide-dispersion-strengthened Tungsten-Rhenium Alloys

*Koki Otsuka¹, Shotaro Watanabe¹, Shuhei Nogami¹, Takeshi Miyazawa¹, Akira Hasegawa¹ (1. Tohoku University)

3:15 PM - 3:30 PM

[1O10] Development of Tungsten Alloys and Composites for Fusion Reactor

(3) Mechanical Properties and Recrystallization Behavior of Bubble-dispersion-strengthened Tungsten-Rhenium Alloys

*Amon Takahashi¹, Takefumi Hazama¹, Shuhei Nogami¹, Takeshi Miyazawa¹, Akira Hasegawa¹ (1. Tohoku Univ.)

3:30 PM - 3:45 PM

[1O11] Development of Tungsten Alloys and Composites for Fusion Reactor

(4) Damage Formation Behavior of Dispersion-strengthened Tungsten Alloys by Thermal Shock Loads

*Kento Matsui¹, Shuhei Nogami¹, Gerald Pintsuk², Marius Wirtz², Thorsten Loewenhoff², Akira Hasegawa¹ (1. Tohoku Univ., 2. FZJ)

3:45 PM - 4:00 PM

[1O12] Development of Tungsten Alloys and Composites for Fusion Reactor

(5) Development of Tungsten Laminated Composites

*Shuhei Nogami¹, Takefumi Hazama¹, Hiroyuki Noto², Takuya Nagasaka², Jens Reiser³, Akira Hasegawa¹ (1. Tohoku Univ., 2. NIFS, 3. KIT)

Time reserved for Chair （4:00 PM - 4:05 PM）

Oral presentation

[1O13-17] Fusion Materials (Characteristics)

Wed. Mar 20, 2019 4:05 PM - 5:25 PM Room O (Common Education Bildg. 2 4F No.46)

Chair:Shuhei Nogami(Tohoku Univ.)

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4:05 PM - 4:20 PM

[1O13] Effects of Manufacturing Conditions on the Mechanical Properties of Pure Tungsten

*Ju-Hyeon Yu¹, Hiroyasu Tanigawa¹ (1. National Institutes for Quantum and Radiological Science and Technology)

4:20 PM - 4:35 PM

[1O14] Fatigue pre-cracking and fracture toughness evaluations in an ITER-grade rolled tungsten plate

*Kazutoshi TOKUNAGA¹, Satoru MATSUO¹, Hiroaki KURISHITA², Takeshi TOYAMA³, Makoto HASEGAWA¹, Kazuo NAKAMURA¹ (1. Research Institute for Applied Mechanics, Kyushu University, 2. KEK, 3. Institute for Materials Research, Tohoku University)

4:35 PM - 4:50 PM

[1O15] Evaluation of durability to cyclic heat load and mechanical property of pure tungsten for ITER divertor

*Makoto Fukuda¹, Yohji Seki¹, Koichiro Ezato¹, Hiroshi Nishi¹, Kenji Yokoyama¹, Satoshi Suzuki¹ (1. QST)

4:50 PM - 5:05 PM

[1O16] Investigation of microstructural effects on the thermal conductivity of NITE-SiC/SiC composites

An experimental study on the effect of microstructure(Density(porosity), Fiber volume fraction, Fiber alignment direction) on the thermal conductivity of NITE-SiC_f/SiC composites for material design as a heat resistantmaterial for fusion reactor.

*Byung-Min Kim¹ (1. Muroran Institute of Technology)

5:05 PM - 5:20 PM

[1O17] Effects of dissolved oxygen in high temperature/pressurized water on the surface of F82H steels.

*Hiroki Mima¹, Naofumi Nakazato¹, Taisei Nemoto¹, Motoki Nakajima², Takashi Nozawa², Hiroyasu Tanigawa², Hirotatsu KIshimoto¹ (1. Muroran Institute of Technology., 2. National Institutes for Quantum and Radiological Science and Technology.)

Time reserved for Chair （5:20 PM - 5:25 PM）

Oral presentation

[2O01-04] Tungsten(Radiation Effects)

Thu. Mar 21, 2019 9:45 AM - 10:50 AM Room O (Common Education Bildg. 2 4F No.46)

Chair:Yoshitaka Matsukawa(Tohoku Univ.)

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9:45 AM - 10:00 AM

[2O01] Thermal diffusivity estimation of tungsten materials neutron irradiated in HFIR RB-19J capsule.

*Masafumi Akiyoshi¹, Lauren M Garrison², Josina Wilna Geringer², Hsin Wang², Yutai Katoh² (1. Osaka Prefecture Univ., 2. ORNL)

10:00 AM - 10:15 AM

[2O02] Irradiation effects in tungsten materials for fusion reactors

(1)High-temperature tensile properties of neutron-irradiated tungsten materials

*Takeshi Miyazawa¹, Lauren M. Garrison², Yutai Katoh², Tatsuya Hinoki³, Akira Hasegawa¹ (1. Tohoku Univ., 2. Oak Ridge National Laboratory, 3. Kyoto Univ.)

10:15 AM - 10:30 AM

[2O03] Irradiation effects in tungsten materials for fusion reactors

(2)Irradiation effects of light ion-irradiated tungsten

*Seiya Nishimura¹, Shuhei Oizumi¹, Takeshi Miyazawa¹, Shuhei Nogami¹, Akira Hasegawa¹ (1. Department of Quantum Science & Energy Engineering, Graduate School of Engineering, Tohoku University)

10:30 AM - 10:45 AM

[2O04] Irradiation effects in tungsten materials for fusion reactors

(3) Microstructure and high-temperature tensile properties of helium-implanted tungsten

*Yusuke Sato¹, Daichi Ito¹, Takaya Hattori¹, Takeshi Miyazawa¹, Shuhei Nogami¹, Akira Hasegawa¹ (1. Tohoku Univ.)

Time reserved for Chair （10:45 AM - 10:50 AM）

Oral presentation

[2O05-08] Blanket Materials

Thu. Mar 21, 2019 10:50 AM - 12:00 PM Room O (Common Education Bildg. 2 4F No.46)

Chair:Yasuhisa Oya(Shizuoka Univ.)

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10:50 AM - 11:05 AM

[2O05] CO₂absorption characteristics in the near surface region of high density Li₂ZrO₃ sample

*Masaaki YAMAMOTO¹, Tsubasa TAKEDA¹, Yuma AKITA², Akira TANIIKE¹, Yuuichi FURUYAMA¹ (1. Graduate School of Maritime Sciences, Kobe Univ, 2. Faculty of Maritime Sciences, Kobe Univ)

11:05 AM - 11:20 AM

[2O06] Valence electron and chemical state analysis of Be₁₂M (M = Ti/V) beryllides by soft X-ray emission spectroscopy

*Keisuke Mukai¹, Ryuta Kasada², Kiyohiro Yabuuchi¹, Satoshi Konishi¹, Jae-Hwan Kim³, Masaru Nakamichi³ (1. Kyoto University, 2. Tohoku University, 3. National Institutes for Quantum and Radiological Science and Technology)

11:20 AM - 11:35 AM

[2O07] Status of R&D of advanced neutron multiplier in ITER-BA activity

(30) Stability of Be12V pebbles with different sizes at high temperatures

*Petr Kurinskiy¹, Jae-Hwan Kim¹, Yoshiaki Akatsu¹, Masaru Nakamichi¹ (1. QST, Rokkasho Fusion Institute, Department of Blanket Systems Research, Breeding Functional Materials Development Group)

11:35 AM - 11:50 AM

[2O08] Preliminary investigation of process development on mass production system for neutron multipliers

*Jae-Hwan Kim¹, Petr Kurinskiy¹, Yoshiaki Akatsu ¹, Masaru Nakamichi ¹ (1. National Institutes for Quantum and Radiological Science and Technology)

Time reserved for Chair （11:50 AM - 12:00 PM）

Sessions

VI. Fusion Energy Engineering » 601-2 Fusion Reactor Material Science (Reactor and Blanket Materials, Irradiation Behavior)

[1O01-07] Tungsten Materials (Behavior of Hydrogen Isotope)

[1O08-12] Development of Tungsten Alloys and Composites

(1) Mechanical Properties and Recrystallization Behavior of Tungsten-Rhenium Alloys

(2) Mechanical Properties and Recrystallization Behavior of Oxide-dispersion-strengthened Tungsten-Rhenium Alloys

(3) Mechanical Properties and Recrystallization Behavior of Bubble-dispersion-strengthened Tungsten-Rhenium Alloys

(4) Damage Formation Behavior of Dispersion-strengthened Tungsten Alloys by Thermal Shock Loads

(5) Development of Tungsten Laminated Composites

[1O13-17] Fusion Materials (Characteristics)

An experimental study on the effect of microstructure(Density(porosity), Fiber volume fraction, Fiber alignment direction) on the thermal conductivity of NITE-SiCf/SiC composites for material design as a heat resistantmaterial for fusion reactor.

[2O01-04] Tungsten(Radiation Effects)

(1)High-temperature tensile properties of neutron-irradiated tungsten materials

(2)Irradiation effects of light ion-irradiated tungsten

(3) Microstructure and high-temperature tensile properties of helium-implanted tungsten

[2O05-08] Blanket Materials

(30) Stability of Be12V pebbles with different sizes at high temperatures

Authentication

An experimental study on the effect of microstructure(Density(porosity), Fiber volume fraction, Fiber alignment direction) on the thermal conductivity of NITE-SiC_f/SiC composites for material design as a heat resistantmaterial for fusion reactor.