chloride media of a high chromium iron alloy; surface finishing as well as the heat treatment was analysed; Electrochemical Impedance Spectroscopy; electrochemical technique; LiMaRC - Liège Materials Research Center
Abstract :
[en] The aim of this work is to study the corrosion behaviour in chloride media of a high chromium iron alloy. The influence of the surface finishing as well as the heat treatment was analysed. The technique employed for measuring the corrosion behaviour was the Electrochemical Impedance Spectroscopy, an electrochemical technique that allows the observation not only of the corrosion rates but also the changes on the corrosion mechanism of the alloy. The results showed that it is worth performing a double tempering and a having smoother surface finishing only for long exposure periods. A comparison between different oxidising conditions was also performed simulating the life in service of the hot rolling cylinders and revealed an increase in the protective properties as the oxidising time increased due to the chromium present on the alloy (18%). (c) 2005 Elsevier Ltd. All rights reserved.
Disciplines :
Chemical engineering Physics Materials science & engineering Mechanical engineering
Author, co-author :
Martinez, L.; Universidad Complutense de Madrid > Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica > Surface Engineering and Nanomaterials Research Group
Gomez, C.; Universidad Complutense de Madrid > Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica > Surface Engineering and Nanomaterials Research Group
Lecomte-Beckers, Jacqueline ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Perez, F. J.; Universidad Complutense de Madrid > Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica > Surface Engineering and Nanomaterials Research Group
Language :
English
Title :
Corrosion studies of different ferrous alloys for rolling cylinders
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