experimental analysis of one-dimensional migration of interstitial clusters and defect accumulation model under irradiation

• Project/Area Number: 21560868
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear engineering
• Research Institution: Tohoku University
• Principal Investigator: SATOH Yuhki 東北大学, 金属材料研究所, 准教授 (20211948)
• Co-Investigator(Kenkyū-buntansha): ABE Hiroaki 東北大学, 金属材料研究所, 教授 (40343925)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2009: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
• Keywords: 照射損傷 / 格子欠陥 / 電子顕微鏡 / 転位ループ / ステンレス鋼 / 原子力エネルギー / 透過電子顕微鏡 / その場観察 / 計算機シミュレーション / 計起シミュレーション

Research Abstract

Mechanisms of one-dimensional(1D)migration processes of interstitial clusters in practical alloys were examined by experimental observation using high-voltage electron microscopy and by computer simulations based on molecular statics and molecular dynamics methods. It was found that 1D migration observed under electron irradiation around room temperature was induced by a mixing effect of solute distribution. It was also clarified that 1D migration was suppressed at higher temperatures due to a segregation of interstitial impurities at interstitial clusters.

Research Products

• [Journal Article] One-dimensional migration of interstitial clusters in SUS316L and its model alloys under electron irradiation (2012)
  • Author(s): Y. Satoh, H. Abe, S. W. Kim
  • Journal Title: Philosophical Magazine Volume: 92 Pages: 1129-1148
  • Peer Reviewed
• [Journal Article] Effects of iron concentration on the microstructure of V-Fe alloys after low-dose neutron irradiation (2011)
  • Author(s): N. Oono, N. Nita, Y. Abe, Y. Satoh, H. Matsui
  • Journal Title: Journal of Nuclear Materials Volume: 418 Pages: 38-45
  • Peer Reviewed
• [Journal Article] Effect of impurities on the growth of { 113} interstitial clusters in silicon under electron irradiation (2011)
  • Author(s): K. Nakai, K. Hamada, Y. Satoh, T. Yoshiie
  • Journal Title: Philosophical Magazine Volume: 91 Pages: 421-436
  • Peer Reviewed
• [Journal Article] Effect of impurities on the growth of {113} interstitial clusters in silicon under electron irradiation (2011)
  • Author(s): K.Nakai, K.Hamada, Y.Satoh, T.Yoshiie
  • Journal Title: Philosophical Magazine Volume: 91 Pages: 421-436
  • Peer Reviewed
• [Journal Article] One-dimensional motion of self-interstitial atom clusters in A533B steel observed using a high voltage electron microscope (2010)
  • Author(s): T. Hamaoka, Y. Satoh, H. Matsui
  • Journal Title: Journal of Nuclear Materials Volume: 399 Pages: 26-31
  • Peer Reviewed
• [Journal Article] One-dimensional motion of self-interstitial atom clusters in A533B steel observed using a high voltage electron microscope (2010)
  • Author(s): T.Hamaoka, Y.Satoh, H.Matsui
  • Journal Title: Journal of Nuclear Materials (未定, 印刷中)
  • Peer Reviewed
• [Journal Article] Obstacles for one-dimensional migration of interstitial-clusters in iron (2009)
  • Author(s): Y. Satoh, H. Matsui
  • Journal Title: Philosophical Magazine Volume: 89 Pages: 1489-1504
  • Peer Reviewed
• [Journal Article] Obstacles for one-dimensional migration of interstitial-clusters in iron (2009)
  • Author(s): Y.Satoh, H.Matsui
  • Journal Title: Philosophical Magazine 89 Pages: 1489-1504
  • Peer Reviewed
• [Presentation] SUS316鋼中の格子間原子集合体の一次元運動に対する熱処理効果 (2012)
  • Author(s): 佐藤裕樹
  • Organizer: 日本金属学会
  • Place of Presentation: 横浜国大
  • Year and Date: 2012-03-27
• [Presentation] SUS316鋼中の格子間原子集合体の一次元運動に対する熱処理効果 (2012)
  • Author(s): 佐藤裕樹, 阿部弘亨, 金思雄, 松永哲也, 荒井重勇, 田中信夫
  • Organizer: 日本金属学会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2012-03-27
• [Presentation] 合金における格子間原子集合体と溶質原子の相互作用モデル (2011)
  • Author(s): 佐藤裕樹
  • Organizer: 日本金属学会
  • Place of Presentation: 沖縄コンベンションセンター
  • Year and Date: 2011-11-08
• [Presentation] 合金における格子間原子集合体と溶質原子の相互作用モデル (2011)
  • Author(s): 佐藤裕樹, 阿部弘亨, 金思雄, 松永哲也
  • Organizer: 日本金属学会
  • Place of Presentation: 宜野湾市、沖縄コンベンションセンター
  • Year and Date: 2011-11-08
• [Presentation] Defect clusters formed from large collision cascades in fcc metals irradiated with spallation neutrons (2011)
  • Author(s): 佐藤裕樹
  • Organizer: 第15回核融合炉材料国際会議(ICFRM-15)
  • Place of Presentation: チャールストン市(米国)
  • Year and Date: 2011-10-18
• [Presentation] Defect clusters formed from large collision cascades in fcc metals irradiated with spallation neutrons (2011)
  • Author(s): Y.Satoh, Y.Matsuda, T.Yoshiie, M.Kawai, 他5名
  • Organizer: 15th International Conference on Fusion Reactor Materials
  • Place of Presentation: チャールストン市(米国)
  • Year and Date: 2011-10-18
• [Presentation] Effects of solute/impurity atoms on one-dimensional migration of interstitial clusters in SUS316L (2011)
  • Author(s): 佐藤裕樹
  • Organizer: 第15回核融合炉材料国際会議(ICFRM-15)
  • Place of Presentation: チャールストン市(米国)
  • Year and Date: 2011-10-16
• [Presentation] Effects of solute/impurity atoms on one-dimensional migration of Interstitial clusters in SUS316L (2011)
  • Author(s): Y.Satoh, H.Abe, S.Kim, T.Matsunaga
  • Organizer: 15th International Conference on Fusion Reactor Materials
  • Place of Presentation: チャールストン市(米国)
  • Year and Date: 2011-10-16
• [Presentation] 高濃度溶質原子と格子間原子集合体の相互作用モデルと一次元運動 (2011)
  • Author(s): 佐藤裕樹
  • Organizer: 日本金属学会
  • Place of Presentation: 震災のため予稿による発表
  • Year and Date: 2011-03-30
• [Presentation] 高濃度溶質原子と格子間原子集合体の相互作用モデルと一次元運動 (2011)
  • Author(s): 佐藤裕樹、阿部弘亨、金思雄
  • Organizer: 日本金属学会
  • Place of Presentation: (震災のため予稿による発表)
  • Year and Date: 2011-03-30
• [Presentation] SUS316鋼における格子間原子集合体の一次元運動のHVEMその場観察 (2010)
  • Author(s): 佐藤裕樹
  • Organizer: 日本金属学会
  • Place of Presentation: 北海道大
  • Year and Date: 2010-09-28
• [Presentation] SUS316鋼における格子間原子集合体の一次元運動のHVEMその場観察 (2010)
  • Author(s): 佐藤裕樹、阿部弘亨、金思雄
  • Organizer: 日本金属学会
  • Place of Presentation: 北海道大学
  • Year and Date: 2010-09-28
• [Presentation] 高濃度合金における格子間原子集合体の一次元運動モデル (2010)
  • Author(s): 佐藤裕樹
  • Organizer: 日本金属学会
  • Place of Presentation: つくば大学
  • Year and Date: 2010-03-30
• [Presentation] One-dimensional migration of interstitial clusters in SUS316L and its model alloys under electron irradiation (2009)
  • Author(s): 佐藤裕樹
  • Organizer: 第14回核融合炉材料国際会議(ICFRM-14)
  • Place of Presentation: 札幌市
  • Year and Date: 2009-09-09
• [Presentation] One-dimensional Migration of Interstitial Clusters in SUS316L and its Model Alloys under Electron Irradiation (2009)
  • Author(s): 佐藤裕樹
  • Organizer: 14^<th> International Conference on Fusion Reactor Materials
  • Place of Presentation: 札幌市、札幌コンベンションセンター
  • Year and Date: 2009-09-09