2017 Annual Meeting

Presentation information

Oral presentation

IV. Nuclear Fuel Cycle and Nuclear Materials » 402-1 Nuclear Materials and the Irradiation Behavior

[3J05-09] Pressure Vessel Materials

Wed. Mar 29, 2017 10:35 AM - 12:00 PM Room J (16-305 Building No.16)

Chair: Kan Sakamoto (NFD)

10:50 AM - 11:05 AM

[3J06] On-the-fly kinetic Monte Carlo for a conservative climb of a cluster of self-interstitial atoms in BCC-Fe

*Sho Hayakawa1, Taira Okita2, Mitsuhiro Itakura3, Haixuan Xu4, Yuri N. Osetsky5 (1. School of Engineering, the University of Tokyo, 2. Research into Artifacts, Center for Engineering, the University of Tokyo, 3. Japan Atomic Energy Agency, 4. The University of Tennessee, Knoxville, 5. Oak Ridge National Laboratory)

Keywords:Conservative climb, On-the-fly kinetic Monte Carlo, Self-interstitial atoms, Radiation damage

活性化過程探索法と機構論的モンテカルロ法の融合により、BCC-Feにおける自己格子間原子集合体の保存的上昇運動のモデル構築を行なった。特にサイズの小さい自己格子間原子集合体に関しては、既往研究で開発されたモデルでは再現できない複雑な原子挙動を伴って保存的上昇運動が発生し得ることが明らかとなった。