000 01649nab a2200205 4500
005 20260520000910.0
008 260224s2010 xxu
245 0 0 _aLocalized corrosion of carbon steel and its implications on the mechanism and inhibition of stress corrosion cracking in fuel-grade ethanol
260 _a
_b
_cdic. 2010
270 _a10/12/2010 ; 10/12/2010
300 _a12 p. ; 125001
520 _aTranscripción del resumen del autor. Stress corrosion cracking (SCC) of carbon steel has been observed in fuel-grade ethanol (FGE, C2H5OH). Electrochemical behavior of carbon steel and therefore the role of localized corrosion in SCC has not been studied adequately because of the difficulty in performing electrochemical experiments in resistive environments such as FGE. A microelectrode technique was used in this work to conduct electrochemical studies in simulated FGE (SFGE). It was found that oxygen likely played multiple roles: it participated in the passive film formation in addition to its more commonly observed role in aqueous environments of changing the open-circuit potential (OCP), and it may also participate in the oxidation of ethanol on steel surfaces. A model, based on this dual role of oxygen, was proposed to explain the SCC mechanism of carbon steel in SFGE. The model is supported by the inhibitor evaluation work, which also demonstrated that carbon steel SCC could be inhibited by adding inhibitors.
581 _a12
773 0 _tCorrosion
_g66
942 _cARTICULO
100 1 _aGui, F.
_943994
100 1 _aSridhar, N.
_925212
100 1 _aBeavers, J.A.
_943995
999 _c172307
_d172307