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Study for manufacturing method of heat-resistant tungsten alloy applied as target material for high power accelerator

Research Project

Project/Area Number 19H01913
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics
Research InstitutionHigh Energy Accelerator Research Organization

Principal Investigator

Makimura Shunsuke  大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 先任技師 (10391715)

Co-Investigator(Kenkyū-buntansha) 能登 裕之  核融合科学研究所, 研究部, 助教 (50733739)
長江 正寛  公益財団法人応用科学研究所, その他部局等, 主任研究員 (60304341)
阪本 辰顕  愛媛大学, 理工学研究科(工学系), 講師 (80403848)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2022: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Keywordsタングステン / 粒界強化 / 耐熱合金 / 超塑性 / 粒子標的材 / 耐熱材料 / タングステン材 / 耐熱 / 再結晶脆化
Outline of Research at the Start

宇宙の起源や物質生命科学の解明を目指す大強度高エネルギー陽子加速器では、J-PARC COMET第二期計画、J-PARC MLF第二標的計画、米国フェルミ研究所Mu2e計画、欧州ESS中性子源計画などに代表されるように、タングステンは標的材料として期待されているが、再結晶脆化・照射脆化の課題を抱える。
これまで東北大で開発され、引き続いて研究代表者らによって製造されたW-TiC合金を更に発展させることによって、W-TiC合金よりも耐熱性に優れ、再結晶脆化・照射脆化の課題を解決し、従来の純タングステンと比較してビーム受入強度を飛躍的に高めるW-TaC合金を完成させる。

Outline of Final Research Achievements

The aim of this research was to develop a TFGR W-TaC alloy with higher heat resistance than the TFGR W-TiC alloy. We were able to improve the manufacturing procedure and optimize the mechanical alloying process. On the other hand, we could not sufficiently increase the bending strength of TFGR W-TaC and show ductility at room temperature. In TFGR W-ZrC, it was found that significant grain refinement could be achieved. In the future, we aim to reduce oxygen incorporation and impurities in the MA treatment process. In the process of development, it was found that TFGR W-TiC with the addition of solution elements showed large superplasticity when produced.

Academic Significance and Societal Importance of the Research Achievements

タングステンに炭化チタンを添加し粒界すべり処理によって粒界を強化したW-TiCを開発してきた。さらに耐熱性を向上させるためにW-TaCの開発に着手した。W-TaCでは耐熱性は向上できるが、粒界強化の効果が不十分ではなかった。並行して開発したW-ZrCでは、TiC, TaCと比較して、結晶粒微細化の効果が高く超塑性への応用が可能であることが分かった。一方でZrCでは、酸素を吸着しやすく酸化物が破壊の起点となってしまい室温での機械強度を出しにくい。そのため、用途に応じて製造法を選択することが重要である。
これらの成果はタングステン合金の応用範囲を広げる。

Report

(4 results)
  • 2023 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (14 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (3 results) Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] フェルミ国立加速器研究所/Pacific North National Laboratory(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] CERN(スイス)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] CERN(スイス)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Muon Production Target in J-PARC MLF Muon Facility2022

    • Author(s)
      牧村 俊助、的場 史朗、河村 成肇
    • Journal Title

      Journal of the Particle Accelerator Society of Japan

      Volume: 18 Issue: 4 Pages: 202-209

    • DOI

      10.50868/pasj.18.4_202

    • NAID

      130008158785

    • ISSN
      1349-3833, 2436-1488
    • Year and Date
      2022-01-31
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Irradiation damages of structural materials under different irradiation environments2021

    • Author(s)
      Wakai Eiichi、Takaya Shigeru、Matsui Yoshinori、Nagae Yuji、Kato Shoichi、Suzudo Tomoaki、Yamaguchi Masataka、Aoto Kazumi、Nogami Shuhei、Hasegawa Akira、Abe Hiroaki、Sato Koichi、Ishida Taku、Makimura Shunsuke、Hurh Patrick G.、Ammigan Kavin、Senor David J.、Casella Andrew M.、Edwards Danny J.
    • Journal Title

      Journal of Nuclear Materials

      Volume: 543 Pages: 152503-152503

    • DOI

      10.1016/j.jnucmat.2020.152503

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Development of Toughened, Fine Grained, Recrystallized W-1.1%TiC2021

    • Author(s)
      Makimura Shunsuke、Kurishita Hiroaki、Niikura Koichi、Jung Hun Chea、Ishizaki Hiroyuki、Kimura Atsuro、Onoi Masahiro、Nagasawa Yutaka、Sakamoto Tatsuaki、Ohfuji Hiroaki
    • Journal Title

      Materials Science Forum

      Volume: 1024 Pages: 103-109

    • DOI

      10.4028/www.scientific.net/msf.1024.103

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Tungsten Alloy Development as Advanced Target Material for High-Power Proton Accelerator2020

    • Author(s)
      Makimura Shunsuke、Kurishita Hiroaki、Niikura Koichi、Jung Hun-Chea、Onoi Masahiro、Nagasawa Yutaka、Ishida Taku、Calviani Marco、Torregrosa Claudio、Descarrega Josep B.
    • Journal Title

      JPS Conf. Proc. , 031002 (2020)

      Volume: -

    • DOI

      10.7566/jpscp.28.031002

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 大強度陽子加速器標的材・遮へい体として 期待されるタングステン2019

    • Author(s)
      牧村俊助,栗下裕明,原田正英, 河村成肇, 的場史朗, 三原智, 牧宗慶,新倉高一, 鄭憲採, 長澤豊,尾ノ井正裕
    • Journal Title

      Journal of Plasma and Fusion Research Vol.95, No.8 August 2019

      Volume: Vol. 95. No.8 Pages: 365-369

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Demands for Thermal Shock Experiments of Pulsed-Muon-Production Target Materials2019

    • Author(s)
      SHUNSUKE MAKIMURA
    • Organizer
      HIRADMAT WORKSHOP AT CERN
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 次世代中性子源・ミュオン源としての等軸微細粒タングステン合金の開発2019

    • Author(s)
      牧村俊助
    • Organizer
      MLFシンポジウム2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] 知らぬが仏で突き進む高エネルギー加速器標的材料研究2019

    • Author(s)
      牧村俊助
    • Organizer
      2019年度第17回日本原⼦⼒学会材料部会夏期セミナー
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 再結晶脆化しない超耐熱高靭性タングステン2019

    • Author(s)
      牧村俊助、栗下裕明、三原智、新倉高一、猪爪正志
    • Organizer
      つくばサイエンスアカデミーテクノロジーショーケース2020
    • Related Report
      2019 Annual Research Report
  • [Presentation] DEVELOPMENT OF TUNGSTEN ALLOY, TFGR W-1.1%TiC, AS ADVANCED TARGET MATERIAL FOR HIGH-POWER PROTON ACCELERATOR2019

    • Author(s)
      Shunsuke Makimura, Hiroaki Kurishita, Koichi Niikura, Hun-Chea Jung, Masahiro Onoi, Yutaka Nagasawa, Tatsuaki Sakamoto, Hiroaki Ohfuji
    • Organizer
      The 19th International Conference on FUsion Reactor Materials
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] 特許権2021

    • Inventor(s)
      牧村俊助他
    • Industrial Property Rights Holder
      高エネルギー加速器研究機構
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-154014
    • Filing Date
      2021
    • Related Report
      2021 Annual Research Report

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Published: 2019-04-18   Modified: 2025-01-30  

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