Artículos de revistas
Influence of ethanol, acidity and chloride concentration on the corrosion resistance of AISI 316L stainless steel
Fecha
2013-05-06Registro en:
Journal of the Brazilian Chemical Society, v. 24, n. 3, p. 397-405, 2013.
0103-5053
1678-4790
10.5935/0103-5053.20130052
WOS:000319998700006
2-s2.0-84876940353
2-s2.0-84876940353.pdf
2797127887030838
Autor
Universidade Federal de Alfenas (UNIFAL)
Universidade Estadual Paulista (Unesp)
Institución
Resumen
The influence of ethanol, sulfuric acid and chloride on the corrosion resistance of 316L stainless steel was investigated by means of polarization curves and electrochemical impedance spectroscopy measurements. Over the studied range, the steel corrosion potential was independent of H2SO 4 and NaCl concentrations in aqueous solution. On the other hand, in solution containing 65 wt.% ethanol and 35 wt.% water, the corrosion potentials were higher than those obtained in aqueous solution. Besides, the steel corrosion potential was affected by the addition of H2SO4 and NaCl in solution. In solutions with and without ethanol, plus 0.35 wt.% NaCl, the presence of 1 wt.% H2SO4 inhibited the appearance of pitting corrosion. © 2013 Sociedade Brasileira de Química.