Spatial distribution of crystalline corrosion products formed during corrosion of stainless steel in concrete

Handle URI:
http://hdl.handle.net/10754/599685
Title:
Spatial distribution of crystalline corrosion products formed during corrosion of stainless steel in concrete
Authors:
Serdar, Marijana; Meral, Cagla; Kunz, Martin; Bjegovic, Dubravka; Wenk, Hans-Rudolf; Monteiro, Paulo J.M.
Abstract:
© 2015 Elsevier Ltd All rights reserved. The mineralogy and spatial distribution of nano-crystalline corrosion products that form in the steel/concrete interface were characterized using synchrotron X-ray micro-diffraction (μ-XRD). Two types of low-nickel high-chromium reinforcing steels embedded into mortar and exposed to NaCl solution were investigated. Corrosion in the samples was confirmed by electrochemical impedance spectroscopy (EIS). μ-XRD revealed that goethite (α-FeOOH) and akaganeite (β-FeOOH) are the main iron oxide-hydroxides formed during the chloride-induced corrosion of stainless steel in concrete. Goethite is formed closer to the surface of the steel due to the presence of chromium in the steel, while akaganeite is formed further away from the surface due to the presence of chloride ions. Detailed microstructural analysis is shown and discussed on one sample of each type of steel.
Citation:
Serdar M, Meral C, Kunz M, Bjegovic D, Wenk H-R, et al. (2015) Spatial distribution of crystalline corrosion products formed during corrosion of stainless steel in concrete. Cement and Concrete Research 71: 93–105. Available: http://dx.doi.org/10.1016/j.cemconres.2015.02.004.
Publisher:
Elsevier BV
Journal:
Cement and Concrete Research
KAUST Grant Number:
KUS-l1-004021
Issue Date:
May-2015
DOI:
10.1016/j.cemconres.2015.02.004
Type:
Article
ISSN:
0008-8846
Sponsors:
This research was supported by scientific project "The composition of corrosion products on corrosion resistant concrete reinforcement" (Grant No. 73/10), funded by Unity through Knowledge Fund (UKF), and by scientific project "The Development of New Materials and Concrete Structure Protection Systems" (No. 082-0822161-2159), funded by Croatian Ministry of Education, Science and Sport. This publication was based on work supported in part by Award No. KUS-l1-004021, made by King Abdullah University of Science and Technology (KAUST). The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231.
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Full metadata record

DC FieldValue Language
dc.contributor.authorSerdar, Marijanaen
dc.contributor.authorMeral, Caglaen
dc.contributor.authorKunz, Martinen
dc.contributor.authorBjegovic, Dubravkaen
dc.contributor.authorWenk, Hans-Rudolfen
dc.contributor.authorMonteiro, Paulo J.M.en
dc.date.accessioned2016-02-28T06:07:30Zen
dc.date.available2016-02-28T06:07:30Zen
dc.date.issued2015-05en
dc.identifier.citationSerdar M, Meral C, Kunz M, Bjegovic D, Wenk H-R, et al. (2015) Spatial distribution of crystalline corrosion products formed during corrosion of stainless steel in concrete. Cement and Concrete Research 71: 93–105. Available: http://dx.doi.org/10.1016/j.cemconres.2015.02.004.en
dc.identifier.issn0008-8846en
dc.identifier.doi10.1016/j.cemconres.2015.02.004en
dc.identifier.urihttp://hdl.handle.net/10754/599685en
dc.description.abstract© 2015 Elsevier Ltd All rights reserved. The mineralogy and spatial distribution of nano-crystalline corrosion products that form in the steel/concrete interface were characterized using synchrotron X-ray micro-diffraction (μ-XRD). Two types of low-nickel high-chromium reinforcing steels embedded into mortar and exposed to NaCl solution were investigated. Corrosion in the samples was confirmed by electrochemical impedance spectroscopy (EIS). μ-XRD revealed that goethite (α-FeOOH) and akaganeite (β-FeOOH) are the main iron oxide-hydroxides formed during the chloride-induced corrosion of stainless steel in concrete. Goethite is formed closer to the surface of the steel due to the presence of chromium in the steel, while akaganeite is formed further away from the surface due to the presence of chloride ions. Detailed microstructural analysis is shown and discussed on one sample of each type of steel.en
dc.description.sponsorshipThis research was supported by scientific project "The composition of corrosion products on corrosion resistant concrete reinforcement" (Grant No. 73/10), funded by Unity through Knowledge Fund (UKF), and by scientific project "The Development of New Materials and Concrete Structure Protection Systems" (No. 082-0822161-2159), funded by Croatian Ministry of Education, Science and Sport. This publication was based on work supported in part by Award No. KUS-l1-004021, made by King Abdullah University of Science and Technology (KAUST). The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231.en
dc.publisherElsevier BVen
dc.subjectBackscattered Electron Imaging (B)en
dc.subjectConcrete (E)en
dc.subjectCorrosion (C)en
dc.subjectStainless steelen
dc.subjectX-ray micro-diffraction (B)en
dc.titleSpatial distribution of crystalline corrosion products formed during corrosion of stainless steel in concreteen
dc.typeArticleen
dc.identifier.journalCement and Concrete Researchen
dc.contributor.institutionSveuciliste u Zagrebu, Gradevinski Fakultet, Zagreb, Croatiaen
dc.contributor.institutionOrta Dogu Teknik Universitesi, Ankara, Turkeyen
dc.contributor.institutionLawrence Berkeley National Laboratory, Berkeley, United Statesen
dc.contributor.institutionUC Berkeley, Berkeley, United Statesen
kaust.grant.numberKUS-l1-004021en
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