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- W1976077801 abstract "A corrosão microbiológica é um dos problemas atuais e impactantes no setor industrial. O objetivo desse trabalho é estudar a influência da Escherichia Coli (Ec) na corrosão do aço inoxidável austenítico 316 em Na2SO4 0,5 mol L-1. Foram empregadas como técnicas: medidas de potencial de circuito aberto, curvas de polarização potenciodinâmica anódica (PA), espectroscopia de impedância eletroquímica (EIE) e microscopia óptica (MO). As curvas de PA mostraram que o aço 316 é passivo desde -400 mV até +1050 mV contra um eletrodo de referência de sulfato mercuroso (ESM). Na região transpassiva, nas PA, verificou-se que, na presença de 0,1 % de Ec, houve a geração de um biofilme, permitindo uma diminuição da densidade de corrente (j), quando comparada a PA na ausência de Ec. No entanto, verificou-se que com 1 % e 10% de Ec a j voltou a aumentar nesta região, provavelmente devido ao desplacamento do biofilme da superfície do aço 316. Os diagramas de EIE e as MO confirmaram os resultados obtidos." @default.
- W1976077801 created "2016-06-24" @default.
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- W1976077801 date "2010-03-01" @default.
- W1976077801 modified "2023-09-26" @default.
- W1976077801 title "Corrosão microbiológica do aço inoxidável austenítico 316 em Na2SO4 0,5 mol L-1 na ausência e presença de Escherichia coli" @default.
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- W1976077801 doi "https://doi.org/10.1590/s0370-44672010000100019" @default.
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