Neutron Residual Stress Measurement of Aluminum Casting

Abstract

The neutron diffraction method is an effective technique as a non-destructive evaluation for un inside residual stress of mechanical components. It is, however, difficult that is generally being used for stress measurement is applied to aluminum casting with large grain size. In this study, residual stress of inside aluminum casting was measured using an oscillation technique along with the neutron diffraction method to solve the problem. The measurement accuracy was quantitatively verified with shrinkage fitting specimen.