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Portugaliae Electrochimica Acta
versión impresa ISSN 0872-1904
Resumen
ECH-CHARQY, Y.; GZIRI, H. y ESSAHLI, M.. Effect of Machining Process in Superfinish Turning on the Corrosion Behavior of UNS S31600 Stainless Steel in 6% NaCl Solution. Port. Electrochim. Acta [online]. 2016, vol.34, n.3, pp.143-155. ISSN 0872-1904. https://doi.org/10.4152/pea.201603143.
The influence of surface topography and cutting parameters on the corrosion resistance of stainless steel UNS S31600 in a 6% NaCl solution is addressed in the present study. Surface topography has been modified by changing the conditions parameters of superfinish turning, including feed, cutting speed and depth of cut, and their correlations with corrosion resistance have been examined. The results showed that the depth of cut is correlated with the corrosion potential. Moreover, the increase of cutting speed degrades the corrosion resistance and increases the corrosion potential in the anodic phase. In its turn, the polarization resistance increases in a manner correlated with increasing the surface quality.
Palabras clave : Pitting corrosion; polarization resistance; average roughness; superfinish turning; potentio-dynamic test.