Abstract
Stainless steels are widely used because they have high corrosion resistance. However, they can also suffer corrosion due to the constant aggressive effect of the environment or due to chemical and physical malfunctions. It is of great importance to determine the behavior of welded austenitic stainless steels in corrosive environments for safer construction. For this reason, in this study, the corrosion and mechanical behavior of welded austenitic stainless steels exposed to salt spray was investigated. In the first stage, commercially available AISI 316L austenitic stainless steel materials with 4 mm thicknesswere joined with the TIG welding method,both with and without filler metal. To specify the structure of the weld zone, the micro-macrostructure and microhardness values of the welded samples were examined before the salt spray experiments. The salt spray test was performed in compliance with the EN ISO 9227 Corrosion test in artificial environmentsstandard, in which the tensile samples of welded AISI 316L materials were subjected to salt spray testup to 1000 hours.Tensile tests were carried out following salt spray tests. DOI: http://dx.doi.org/10.5755/j01.mech.25.2.21551
Highlights
Austenitic stainless steels offer a very suitable without filler metal to investigate the effects of the addition combination in terms of mechanical properties, corrosion of filler metal to the TIG welding methods
Good welding appearance and high quality welds plates were used, and for joints without filler metal, square are obtained by TIG welding methods
It is seen that the welding transition zone is wider and smoother in joints without filler metal
Summary
Determining together the corrosion and mechanical behaviours of welded 316L grade stainless steels is of significant importance for safe engineering constructions. Experimental detail stainless steels are in widespread use due to their high corrosion resistance. Austenitic stainless steels offer a very suitable without filler metal to investigate the effects of the addition combination in terms of mechanical properties, corrosion of filler metal to the TIG welding methods. Good welding appearance and high quality welds plates were used, and for joints without filler metal, square are obtained by TIG welding methods.
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