challenge to evaluation of irradiation hardening without hardness tests by nanoindentation method

2014 Fiscal Year Final Research Report

• Project/Area Number: 25630432
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Nuclear engineering
• Research Institution: Kyoto University
• Principal Investigator: KASADA Ryuta 京都大学, エネルギー理工学研究所, 准教授 (20335227)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 原子力材料 / 力学特性 / 照射硬化 / ナノインデンテーション / 超微小試験技術

Outline of Final Research Achievements

This is an experimental study which aims to evaluate irradiation hardening not by hardness but directly by nanoindentation. As a main achievement, micro-pillar compression test method was examined to evaluate mechanical properties of the ion-irradiated material. Also, the pop-in phenomenon of a single crystal material by nanoindetation was investigated to reveal ion-irradiation effect on the critical shear stress. In addition, a new analysis method for nanoindentation hardness test on ion-irradiated materials were propesed.

Free Research Field

エネルギー材料システム工学