Abstract
In this article, we study the effects of hot forging at a temperature of 1050 °C for one hour followed by water quenching on the behavior of mechanical properties and corrosion of a super duplex stainless steel 2507 was examined under an optical microscope, there is a refining of fine grains after thermomechanical treatment Which helps to increase the elastic limit. Quantitative analysis by X-ray diffraction shows that Feα ferrite phases in raw steel increase from 20.59% to 24% after forging. Unlike the austenite phases Feγ, the proportion of austenite decreases from 79% to 75%, this allowed the hardness value to increase after thermomechanical treatment from 15 to 30 HRC. In these experiments, when using a 3.5% NaCl solution, it is noted that the forging treatment decreases the charge transfer resistance.
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