Instrumented Indentation Technique-applied Simultaneous Measurement of Residual Stress and Plastic Strain Distributions within Waterjet Peened Layer of Materials

Abstract

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.