Investigation for Reduction Effects of Residual Stress by Water Jet Peening due to Accuracy Improvement of X-Ray Residual Stress Measurement in Weld of Ni Based Alloy.

Abstract

Although it is well known that X-ray residual stress measurement in weld of Ni based alloy is generally difficult, by the combination of two-dimensional detector and multi-axial rocking, the residual stress distribution obtained from the deformation of debye-ring. And then, it is confirmed that improvement effect by water jet peening was effective for the SCC in the weld.