English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Theoretical Efficiency of Metallic Dispersion Coatings for Corrosion Protection at the Cut-Edge

Urriola, P. V., Walczak, M., & Rohwerder, M. (2013). Theoretical Efficiency of Metallic Dispersion Coatings for Corrosion Protection at the Cut-Edge. Journal of the Electrochemical Society, 160(8), C305-C315. doi:10.1149/2.019308jes.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0001-E2F6-A Version Permalink: http://hdl.handle.net/21.11116/0000-0001-E2F7-9
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Urriola, Pedro Valdivia1, Author              
Walczak, Magdalena2, Author              
Rohwerder, Michael2, 3, Author              
Affiliations:
1Department of Mechanical and Metallurgical Engineering, School of Engineering, Pontificia Universidad Catolica de Chile, Santiago, Macul 6904411, Chile, persistent22              
2Molecular Structure and Surface Modification, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863360              
3Electrochemical Society Active Member, USA, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: The theoretical efficiency of metallic dispersion coatings with release of corrosion inhibitor, e.g. zinc with dispersed inorganic particles capable of releasing corrosion inhibitor, is investigated by means of numerical modeling. The model is formulated for an Fe-Zn couple in a transient mode, including the formation of zinc corrosion products (ZnOH+, Zn(OH)2, Zn(OH)3 - and ZnO). Arbitrary Langrangian Eulerian (ALE) method is employed to allow displacement of the dissolving metal surfaces and link it with release of corrosion inhibitor from the zinc layer. With no inhibitor present, the model replicates the effect of self-healing at the cut-edge with respect to distribution of pH and zinc corrosion products. It has been found that release of small amounts of a corrosion inhibitor functioning on the principle of adsorption is already sufficient to enhance corrosion protection at the cut-edge. An additional contribution to self-healing at the cut-edge might be expected by enhanced precipitation of ZnO due to alterations in charge balance caused by introduction of negatively charged molecules of the inhibitor. © 2013, The Electrochemical Society, Inc. All rights reserved.

Details

show
hide
Language(s): eng - English
 Dates: 2013-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1149/2.019308jes
BibTex Citekey: Urriola2013C305
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Journal of the Electrochemical Society
  Abbreviation : J. Electrochem. Soc.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: New York, NY, USA : Electrochemical Society
Pages: - Volume / Issue: 160 (8) Sequence Number: - Start / End Page: C305 - C315 Identifier: ISSN: 0013-4651
CoNE: https://pure.mpg.de/cone/journals/resource/991042748197686