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第一原理計算を用いた水素侵入挙動解明への試み

Study on hydrogen absorption using first-principle calculation

五十嵐 誉廣  

Igarashi, Takahiro

昨今の計算機性能向上により、様々な分野において第一原理計算を用いた材料の機械的・化学的性質の解析が行われ、多くの成果が得られてきている。一方、原子力材料の分野では、材料の機械的性質に対する第一原理計算アプローチはある一方で、電気化学的性質へのアプローチはほぼ見られない。本報では、第一原理計算を用いた材料中水素と表面電位との関係解明に関する初期検討および今後行いたいことについて紹介する。

Due to recent improvements in computer performance, analysis of mechanical and chemical properties of materials using first principles calculations has been conducted in various fields, and many achievements have been obtained. In nuclear materials field, many first principle calculation approaches exist for mechanical properties. However, few approaches exist for electrochemical properties. In this presentation, we will introduce preliminary approach to obtain relationship between surface potential and Hydrogen in material using First Principle Calculation and future plan against corrosion problem.

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