Abstract
This study aims to examine the electrochemical corrosion behavior of a type (Forged) F304 stainless steel (SS) in the FeCl3 solution at 5 °C, 22 °C to 50 °C for the period of 24 h. The corrosion behavior was studied by using ASTM G48 which includes, weight loss and corrosion rate. The corrosion products were characterized with the help of EDX analysis. The specimen surfaces were observed by using scanning electron microscopy (SEM). In the distinctive FeCl3 solution, the material leads to the formation of several small pits that coalescence together to form cracks that appear at the surface and the bottom of the pit under different temperatures. The EDX analysis specifies the atomic percentage and at 50 °C, the characterized data represent fewer Cr species, and higher Cl− ions. These results indicated the lower corrosion resistance and the dissolution of chloride ions in abundance around the pit surface. It was found that the material degradation was faster at the pit bottom, and also more susceptible to new pits and cracks. Further, in practical amplification, the experimental results are useful to understand the material behavior at different temperatures. It is also helpful for the application of F304 SS such as gate valve disk.
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