• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Basic study on the modification of vacuum plasma sprayed tungsten coating by friction stir processing

Research Project

Project/Area Number 26289360
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Nuclear fusion studies
Research InstitutionNational Institutes for Quantum and Radiological Science and Technology (2016)
Japan Atomic Energy Agency (2014-2015)

Principal Investigator

Tanigawa Hiroyasu  国立研究開発法人量子科学技術研究開発機構, 核融合エネルギー研究開発部門 核融合炉構造材料開発グループ, グループリーダー (50354668)

Co-Investigator(Kenkyū-buntansha) 渡邊 誠  国立研究開発法人物質・材料研究機構, 先進高温材料ユニット, 主幹研究員 (00391219)
黒田 聖治  国立研究開発法人物質・材料研究機構, 先進高温材料ユニット, ユニット長 (50354220)
小沢 和巳  国立研究開発法人日本原子力研究開発機構, 核融合研究開発部門 六ケ所核融合研究所, 任期付研究員 (80613330)
Co-Investigator(Renkei-kenkyūsha) FUJII Hidetoshi  大阪大学, 接合科学研究所, 教授 (00247230)
MORISADA Yoshiaki  大阪大学, 接合科学研究所, 教授 (00416356)
ARAKI Hiroshi  物質・材料研究機構, 主幹エンジニア (90354349)
EZATO Kohichiro  量子科学技術研究開発機構, 核融合エネルギー研究開発部門, 上席研究員 (30354624)
SEKI Yoji  量子科学技術研究開発機構, 核融合エネルギー研究開発部門, 主幹研究員 (00469793)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Fiscal Year 2016: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2014: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywords摩擦撹拌処理 / 耐熱皮膜 / タングステン / 真空溶射 / ウオームスプレー法 / 粉末床溶融結合法 / 繰り返し熱負荷試験 / 材料加工・処理 / プラズマ・核融合 / 構造・機能材料 / 金属物性 / 界面組織 / 熱負荷試験体 / 摩擦撹拌処理強化 / タングステン皮膜 / ウォームスプレー法
Outline of Final Research Achievements

Tungsten (W) is the primary candidate material as a plasma facing material in fusion devices. The vacuum plasma spray (VPS) technique has been investigated, but the issues are its low thermal conducitivty and low strength of VPS-W mainly caused by the porous structure of VPS-W. In order to solve these issues, friction stir processing (FSP) was applied on VPS-W, and it was suggested that FSP can contribute to significant improvement both in mechanical and thermal properties of VPS-W coating. Hardness test over FSPed VPS-W layer revealed that the hardness of W becomes equivalent to or higher than that of bulk W. Thermal conductivity was about 80% of bulk W at 200°C, but it becomes equivalent to that of bulk W over 800°C. Warm Spray (WS) method and Selective Laser Melting (SLM) method have been examined as the potential new technique as the W coating, and it turned out that SLM can form a decent thickness of W coating, but with a larger porousness.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (9 results)

All 2016 2015 2014

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (7 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Modification of vacuum plasma sprayed tungsten coating on reducedactivation ferritic/martensitic steels by friction stir processing2015

    • Author(s)
      H. Tanigawa, K. Ozawa, Y. Morisada, SH. Noh, H.Fujii
    • Journal Title

      Fusion Engineering and Design

      Volume: 98-99 Pages: 2080-2084

    • DOI

      10.1016/j.fusengdes.2015.04.059

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Impacts of friction stir processing on irradiation effects invacuum-plasma-spray coated tungsten2015

    • Author(s)
      K. Ozawa, H. Tanigawa, Y. Morisada, H.Fujii
    • Journal Title

      Fusion Engineering and Design

      Volume: 98-99 Pages: 2054-2057

    • DOI

      10.1016/j.fusengdes.2015.06.104

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Presentation] 粉末床溶融結合法によるタングステン膜形成の試み2016

    • Author(s)
      渡邊 誠,岸本哲,黒田 聖治,谷川 博康
    • Organizer
      日本溶射学会秋季大会
    • Place of Presentation
      ウェルとばた(福岡県・北九州市)
    • Year and Date
      2016-11-17
    • Related Report
      2016 Annual Research Report
  • [Presentation] Modification of vacuum plasma sprayed tungsten coating by friction stir processing2016

    • Author(s)
      H.Tanigawa, K.Ozawa, Y. Morisada, H. Fujii
    • Organizer
      4th International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation
    • Place of Presentation
      ホテル阪急エキスポパーク(大阪府・吹田市)
    • Year and Date
      2016-10-18
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ion irradiation effects on microstructure and mechanical properties of VPS-W coated F82H modified by friction stir processing2016

    • Author(s)
      K. Ozawa, H. Tanigawa, H. Kurotaki, M. Ando, Y. Morisada, S. Kondo, H. Fujii, T. Hinoki
    • Organizer
      29th Symposium on Fusion Technology
    • Place of Presentation
      Prague (Czech Rep.)
    • Year and Date
      2016-09-05
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Modification of vaccum plasma sprayed tungsten coating on F82H by friction stir processing2014

    • Author(s)
      Hiroyasu Tanigawa, Kazumi Ozawa, Yoshiaki Morisada, Noh Sanghoong, Hidetoshi Fujii
    • Organizer
      28th Symposium on Fusion Technology
    • Place of Presentation
      San Sebastian, Spain
    • Year and Date
      2014-09-29 – 2014-10-03
    • Related Report
      2014 Annual Research Report
  • [Presentation] Impacts of friction stir processing on irradiation effects in vacuum-plasma-spray coated tungsten and its substrate F82H2014

    • Author(s)
      Kazumi Ozawa, Hiroyasu Tanigawa, Yoshiaki Morisada, Hidetoshi Fujii
    • Organizer
      28th Symposium on Fusion Technology
    • Place of Presentation
      San Sebastian, Spain
    • Year and Date
      2014-09-29 – 2014-10-03
    • Related Report
      2014 Annual Research Report
  • [Presentation] 真空プラズマ溶射タングステン皮膜の摩擦撹拌処理による強化2014

    • Author(s)
      谷川博康、小沢和巳、森貞好昭、藤井英俊、盧 相熏
    • Organizer
      日本原子力学会 2014年 秋の大会
    • Place of Presentation
      京都
    • Year and Date
      2014-09-09 – 2014-09-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] 真空プラズマ溶射法で成膜し摩擦撹拌処理を施したW-F82H鋼のイオン照射後硬さと微細組織2014

    • Author(s)
      小沢和巳、谷川博康、森貞好昭、藤井英俊
    • Organizer
      日本原子力学会 2014年 秋の大会
    • Place of Presentation
      京都
    • Year and Date
      2014-09-09 – 2014-09-11
    • Related Report
      2014 Annual Research Report

URL: 

Published: 2014-04-04   Modified: 2018-03-22  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi