| Autor: |
Takahiro Ito, Tokio Fukahori, Masayoshi Kawai, F. Shimizu, Satoshi Hashimoto, Koichi Sato, Yoshihisa Kaneko, S. Shimakawa, Naoyuki Hashimoto, Hiroshi Iwase, Yukinobu Watanabe, Qiu Xu, Toshimasa Yoshiie, Shiori Ishino, I. Kishida, Satoshi Kunieda |
| Rok vydání: |
2011 |
| Předmět: |
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| Zdroj: |
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 269:1740-1743 |
| ISSN: |
0168-583X |
| DOI: |
10.1016/j.nimb.2010.11.076 |
| Popis: |
Changes in mechanical property of Ni under irradiation by 3 GeV protons were estimated by multi-scale modeling. The code consisted of four parts. The first part was based on the Particle and Heavy-Ion Transport code System (PHITS) code for nuclear reactions, and modeled the interactions between high energy protons and nuclei in the target. The second part covered atomic collisions by particles without nuclear reactions. Because the energy of the particles was high, subcascade analysis was employed. The direct formation of clusters and the number of mobile defects were estimated using molecular dynamics (MD) and kinetic Monte-Carlo (kMC) methods in each subcascade. The third part considered damage structural evolutions estimated by reaction kinetic analysis. The fourth part involved the estimation of mechanical property change using three-dimensional discrete dislocation dynamics (DDD). Using the above four part code, stress–strain curves for high energy proton irradiated Ni were obtained. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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