Paper Titles
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Influence of Cooling Rate and Steel Composition on the Scale Failure Characteristics during Cooling of Si-Containing Low Carbon Steels
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Development and Application of High Cr-High Si-Fe-Ni Alloys to High Efficiency Waste-To-Energy Boilers
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Experiences with Inconel 625 in Biomass and Waste Incineration Plants
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Hot Corrosion Monitoring of Waste Incineration Corrosion Processes Using Electrochemical Techniques
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Corrosivity of KCl(g) at Temperatures above Its Dew Point - Initial Stages of the High Temperature Corrosion of Alloy Sanicro 28 at 600°C
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Influence of Chlorine, Sulphur and Water Vapor on High Temperature Corrosion of Fe, Cr, Ni Alloys for Waste Incinerators
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Effect of Alloying Elements on Corrosion Resistance of Ni-Base Cast Alloys in Waste Incineration Environments
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The Influence of Sulfur Additions on the Corrosive Environments in a Waste-Fired CFB Boiler
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Hot Corrosion Monitoring of Waste Incineration Corrosion Processes Using Electrochemical Techniques

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Abstract:

In order to evaluate the damage of molten salt mixtures in waste incineration environments, the alloy 625 was exposed to a molten KCl-ZnCl2 mixture at 650 °C for 200 hours. The corrosion process was monitored by electrochemical impedance spectroscopy (EIS). After exposure the corrosion products were analyzed by X-ray diffraction and SEM. Two different electrochemical impedance models were found to describe the electrochemical processes. In the early stages of corrosion the alloy developed a protective Cr2O3 scale which turned into a porous spinel oxide scale after 100 hours.

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Periodical:

Materials Science Forum (Volumes 522-523)

Pages:

531-538

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.522-523.531

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Online since:

August 2006

Authors:

F.J. Pérez, J. Nieto, J.A. Trilleros, M.P. Hierro

Keywords:

Corrosion Monitoring, Electrochemical Impedance, Molten Salt Corrosion, Waste Incineration

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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