Experimental study of Irradiation Assisted Stress Corrosion Cracking by using Cyclotron Accelerator

• Project/Area Number: 22560830
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear engineering
• Research Institution: National Institute for Materials Science
• Principal Investigator: MURASE Yoshiharu 独立行政法人物質・材料研究機構, 材料信頼性評価ユニット, 主任研究員 (10354193)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2012: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 原子力材料 / 照射下疲労 / 軽イオン照射 / 水素脆化 / ヘリウム予注入 / 照射誘起応力腐食割れ / 軽水炉構造材料 / サイクロトロン / その場試験 / 水素効果 / プロトン照射 / 疲労 / ヘリウム注入 / 「その場」試験 / 水素脆性 / 重水素照射

Research Abstract

The extension of fatigue lifetime under high-energy particle irradiation is considered as the in-situ irradiation effect based on the interaction between the radiation induced defect clusters and moving dislocations. The present experimental study was successful to demonstrate the reduction of the in-situ irradiation effect when hydrogen and helium are sufficiently included in the material. This indicates hydrogen would influence the irradiation assisted stress corrosion cracking (IASCC) for aging light-water-plant materials accumulating substantial amount of helium.

Research Products

• [Journal Article] Effects of implanted hydrogen on fatigue behavior of F82H under irradiation (2011)
  • Author(s): 村瀬義治、山本徳和、永川城正
  • Journal Title: Journal of Nuclear Materials Volume: 417巻 Issue: 1-3 Pages: 120-123
  • DOI: 10.1016/j.jnucmat.2010.12.049
  • Peer Reviewed
• [Journal Article] Effects of Implanted Deuterium on In-Situ Irradiation Fatigue Behavoirs of Cold-Worked 316 Stainless Steel at 60 and 300℃ (2011)
  • Author(s): 村瀬義治、山本徳和
  • Journal Title: Materials Transactions Volume: 52 Pages: 423-427
  • Peer Reviewed
• [Presentation] ヘリウム予注入した316鋼の17MeVプロトン照射下疲労挙動 (2011)
  • Author(s): 村瀬義治
  • Organizer: 日本原子力学会(一般講演)
  • Place of Presentation: 北九州国際会議場(北九州市)
  • Year and Date: 2011-09-19
• [Presentation] ヘリウム予注入した316鋼の17MeVプロトン照射下疲労挙動 (2011)
  • Author(s): 村瀬義治
  • Organizer: 日本原子力学会
  • Place of Presentation: 北九州国際会議場(北九州市)(一般講演)
  • Year and Date: 2011-09-19