インデンテーション法を応用したWJP層内部の残留応力・塑性ひずみ分布の同時測定

抄録

In this study, semi-nondestructive and simultaneous measurement of distributions of residual stress and plastic strain within surface layer of materials were developed through instrumented indentation technique. The developed technique was applied to estimate the depth-directional distributions of residual stress and plastic strain within waterjet peened layer of nickel-based alloy. The estimated results were compared with those obtained through the X-ray diffraction method and the Vickers hardness test. From the results, we concluded that the developed procedure using instrumented indentation technique was expected to be useful.