Scanning electron microscopy studies of the weld decay on SS 304 of water supply pipeline

This dataset contains micrographs made with scanning electron microscope (SEM) Hitachi S-3400N, of the weld decay for water supply system pipelines made of AISI 304 stainless steel. Within the dataset one can see the different corrosion mechanisms. The micrographs were made after the Strauss test (excluding pictures labeled as pits_in_HAZ, done without pre-treatment) without any further surface treatment. The weld decay is often occurring reason for corrosion failure due to pitting and intergranular attack as a result of sensitization during the welding process. Thus, different areas are shown, within weld, heat affected zone (HAZ) and base material. More studies related to these data can be found in Construction and Building Materials manuscript, 10.1016/j.conbuildmat.2014.04.058