Efecto de la profundidad sobre la soldabilidad de aceros ferríticos en ambientes simulados unidos por soldadura húmeda

Abstract

The objective of this work is to evaluate the influence of depth variation on multipass V-groove weld metal properties. Commercial base metal and covered electrodes (ASTM A36 and E7014) and four different conditions were used to perform the wet welds at 10, 20, 30 and 40 m depth. A pressurized chamber with 30 atmospheres capacity filled with water was used to simulate the depth. A certified dive welder was used to perform the welds. The properties in transverse cross-sections, Charpy V-notch tests, macro etching tests and tensile tests were determined for correlation. Mechanical tests showed better properties in the samples extracted from the 20m depth condition.