Through thickness measurement of residual stresses in a stainless steel cylinder containing shallow and deep weld repairs

摘要

A programme of residual stress measurements was undertaken using the deep hole method. The measurements obtained the through-thickness residual stress profiles before and after introducing deep and shallow part-circumferential weld repairs into a 37 mm thick stainless steel cylinder. Measured through-thickness distributions were obtained at mid-width and in the heat affected zone of both the original weld and repairs. The results show that the membrane and bending components of the in-plane residual stresses are generally increased when weld repairs are introduced.