Abstract
Tensile properties of a thick, multipass, submerged-arc (SA) weld-deposited type 316 are investigated by tests at room temperature and at 400 ° C and by microstructural and compositional analyses. The as-deposited metal, which shows a lower yield strength, a comparable ultimate tensile strength and a lower total elongation compared to the (solution-annealed) parent metal, is characterized by systematic variations in tensile properties across its thickness, with the highest strength and the lowest ductility in the weld centre. These variations are related to material variability (mainly changes in dislocation density) within the weld metal due to local dissimilarities in thermal and mechanical histories during welding.
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Piatti, G., Vedani, M. Relation between tensile properties and microstructure in type 316 stainless steel SA weld metal. J Mater Sci 25, 4285–4297 (1990). https://doi.org/10.1007/BF00581086
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DOI: https://doi.org/10.1007/BF00581086