Measurement of Residual Stresses in Type-304 Stainless Steel Piping Butt Weldments. Phase Report

摘要

Residual stresses have been shown to be a major factor contributing to intergranular stress corrosion cracking of weldments in austenitic stainless steel. Residual stresses developed during welding are measured for three pipe sizes including 4-, 10-, and 26-inch-diameter, schedule-80, type-304 stainless steel. Significant differences are found in both magnitude and distribution as a function of pipe size. Effects of preweld surface treatments are also evaluated. (ERA citation 05:030874)