Evaluation of 316L Stainless Steel Corrosion Resistance in Solution Simulating the Acid Hydrolysis of Biomass

Autor(es)

Ferreira, E. A. ^[1] ; Noce, R. D. ^[1] ; Fugivara, C. S. ^[1] ; Benedetti, A. V. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, UNESP, Inst Quim, Dept Quim Fis, BR-14801970 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of the Electrochemical Society; v. 158, n. 4, p. C95-C103, 2011.
• Citações Web of Science: 1

Resumo

The corrosion resistance of 316L stainless steel in 65 wt % ethanol, 35 wt % water, 1 wt % H(2)SO(4) solution containing different NaCl concentrations and at different temperatures was investigated using open circuit potential measurements, polarization curves, and electrochemical impedance spectroscopy. At 25 degrees C, the minimum NaCl concentration required for occurrence of pitting was 0.58 wt %. In 0.35 wt % NaCl solution, localized corrosion was observed at temperatures higher than 40 degrees C and, depending on the potential, metastable or stable pits were observed. No pits were observed below 40 degrees C in 0.35 wt % NaCl solution. (C) 2011 The Electrochemical Society. {[}DOI: 10.1149/1.3554728] All rights reserved. (AU)

• Processo FAPESP: 08/50579-7 - Caracterização da resistência à corrosão do aço inoxidável AISI 316L com e sem revestimentos metálico-cerâmicos e híbridos orgânico-inorgânicos
• Beneficiário: Elivelton Alves Ferreira
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado