Investigation of failure behavior of ferritic–austenitic type of dissimilar steel welded joints

Local fracture resistance behavior of interface regions in a dissimilar metal welded joint

“…However, due to the highly inhomogeneous microstructure, mechanical and fracture properties across the DMWJ, it is difficult to conduct analytical or experimental fracture investigations on the DMWJs. Only limited studies on the fracture behavior for the DMWJ can be found in the literature [5][6][7][8][9][10][11][12][13]. A series of fracture tests have been performed to evaluate the fracture resistance of DMWJ between SA508 ferritic steel and 304L stainless steel (SS) using E308L SS as a filler metal in the BiMET and ADIMEW programs within the European Commission [5][6][7].…”

Transformaciones Microestructurales en Soldaduras Disímiles de Acero Inoxidable Austenítico con Acero Inoxidable Ferrítico

“…Existen aplicaciones de los aceros inoxidables en las cuales se requiere una transición en propiedades, como codos de tuberías para transporte de hidrocarburos o zonas de transición térmica en el proceso de refinación del cobre, por lo que se hace necesario realizar soldaduras disímiles de aceros inoxidables [5][6][7]. Los metales sometidos a procesos de soldadura experimentan cambios en su microestructura que dependen de los ciclos térmicos a los cuales fueron sometidos, de las propiedades físicas de cada material y de la composición química de éstos [8][9][10].…”

Metallurgical investigations and corrosion behavior of failed weld joint in AISI 1518 low carbon steel pipeline

“…Therefore, corrosion behavior of the welded zone is expected to be different from the other areas in corrosive media. Since corrosion activities in various zones of the welded steel are different, the corrosion product layers with various thicknesses and protective properties are formed in different weld sub-zones [8][9][10][11][12][13][14][15][16][17][18]. Electrochemical characterizations are a good technique to investigate the effect of metallurgical transformations across the WM and HAZ on the corrosion performance of the welded sample in the corrosive media.…”