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51313-02442-Evaluation of Corr. Characteristics of Al Alloys in Bioethanol Blended Fuel Using 2-Electrode EIS

Product Number: 51313-02449-SG
ISBN: 02449 2013 CP
Author: In Jun Park
Publication Date: 2013
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$20.00
$20.00

The application of bio-ethanol to automotive fuel is incomplete due to concerns regarding the corrosion problems that might occur in light metal components for fuel and engine system particularly aluminum alloys. There are only a few studies on the corrosion characteristics of the automotive component materials under the bio-ethanol blended fuel conditions especially under high temperature that might be reached in engine driving. Our previous studies verified that a thermally activated chemical reaction between aluminum and ethanol which results in the formation of aluminum alkoxide was found to be the key process of the aluminum corrosion in the high temperature ethanol blended fuel. However it has not been established the appropriate electrochemical methods to evaluate corrosion characteristics of aluminum alloys due to very low conductivity of electrolyte high temperature and difficulty of 3-electrode cell system configuration.
This study examined the corrosion characteristics and mechanisms of the aluminum alloys used automotive fuel system in bio-ethanol blended gasoline fuels by using in situ electrochemical impedance spectroscopy (EIS). Time-pressure curve was also used to evaluate corrosion characteristics of alloys and surface analyses were carried out after corrosion test.
 

The application of bio-ethanol to automotive fuel is incomplete due to concerns regarding the corrosion problems that might occur in light metal components for fuel and engine system particularly aluminum alloys. There are only a few studies on the corrosion characteristics of the automotive component materials under the bio-ethanol blended fuel conditions especially under high temperature that might be reached in engine driving. Our previous studies verified that a thermally activated chemical reaction between aluminum and ethanol which results in the formation of aluminum alkoxide was found to be the key process of the aluminum corrosion in the high temperature ethanol blended fuel. However it has not been established the appropriate electrochemical methods to evaluate corrosion characteristics of aluminum alloys due to very low conductivity of electrolyte high temperature and difficulty of 3-electrode cell system configuration.
This study examined the corrosion characteristics and mechanisms of the aluminum alloys used automotive fuel system in bio-ethanol blended gasoline fuels by using in situ electrochemical impedance spectroscopy (EIS). Time-pressure curve was also used to evaluate corrosion characteristics of alloys and surface analyses were carried out after corrosion test.
 

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