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Atmospheric Corrosion of Materials
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Atmospheric Corrosion of Materials

A special issue of Corrosion and Materials Degradation (ISSN 2624-5558).

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 16442

Special Issue Editor

Prof. Dr. Dominique Thierry

E-Mail Website
Guest Editor
Rise Research Institute of Sweden, Göteborg, Sweden
Interests: corrosion; electrochemistry; corrosion science; coatings; corrosion protection

Special Issue Information

Dear Colleagues,

Atmospheric corrosion is a major contributor to the cost of corrosion and is a major limiting factor for the use of metallic materials in many industrial applications. The mechanisms of atmospheric corrosion are rather complex and involve electrochemical reactions occurring in a thin film of electrolytes on the metal surface. This special issue will cover all aspects of indoor and outdoor atmospheric corrosion. It also includes sensing techniques to monitor atmospheric corrosion for indoor and outdoor application and modeling of atmospheric corrosion.

This Special Issue is a joint endeavor with the Corrosion and Materials Degradation Web Conference series. Authors of selected papers from the session are invited to submit an extended version of their text; in addition, completely new submissions from the community are welcome.

Prof. Dr. Dominique Thierry
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Corrosion and Materials Degradation is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (5 papers)

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Research

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13 pages, 3441 KiB  
Article
The Effect of Microstructure on Local Corrosion Product Formation during Initial SO2-Induced Atmospheric Corrosion of ZnAlMg Coating Studied by FTIR-ATR FPA Chemical Imaging
by Dan Persson, Dominique Thierry and Nathalie LeBozec
Corros. Mater. Degrad. 2023, 4(3), 503-515; https://doi.org/10.3390/cmd4030026 - 08 Sep 2023
Viewed by 1277
Abstract
The initial atmospheric corrosion of ZM (ZnAlMg)-coated steel in humid air (85% RH) and humid argon (85% RH) containing 320 ppb SO2 was studied using in situ infrared reflection absorption spectroscopy (IRRAS), FTIR-ATR focal plane array (FPA) imaging and SEM-EDS. The corrosion [...] Read more.
The initial atmospheric corrosion of ZM (ZnAlMg)-coated steel in humid air (85% RH) and humid argon (85% RH) containing 320 ppb SO2 was studied using in situ infrared reflection absorption spectroscopy (IRRAS), FTIR-ATR focal plane array (FPA) imaging and SEM-EDS. The corrosion products formed in humid air containing SO2 are mainly composed of magnesium sulphites and sulphates, with sulphite-containing corrosion products formed initially while the contribution from sulphates increased with exposure time. The results from FTIR-FPA imaging and SEM-EDS showed that the magnesium sulphite and sulphate are formed mainly on eutectic phases with a higher quantity of corrosion products formed on the binary eutectic (Zn-MgZn2) phases. This is due to presence of microgalvanic elements with the zinc-rich phases as the main sites for the cathodic oxygen reduction while the anodic reactions take place on the eutectic areas. Sulphate content is the highest on the binary eutectic phases, due to the microgalvanic effects and the production of oxidants by the cathodic reaction, which increases the oxidation of sulphite to sulphate. Full article
(This article belongs to the Special Issue Atmospheric Corrosion of Materials)
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17 pages, 8186 KiB  
Article
Experimental Design Considerations for Assessing Atmospheric Corrosion in a Marine Environment: Surrogate C1010 Steel
by Christine E. Sanders and Raymond J. Santucci, Jr.
Corros. Mater. Degrad. 2023, 4(1), 1-17; https://doi.org/10.3390/cmd4010001 - 31 Dec 2022
Cited by 1 | Viewed by 1753
Abstract
A rigorous assessment of marine atmospheric corrosion at a controlled NRL test site in Key West Florida was conducted. Certain factors which have been previously implicated in the literature as influencing the corrosion of engineering materials in atmospheric exposure were isolated and explored. [...] Read more.
A rigorous assessment of marine atmospheric corrosion at a controlled NRL test site in Key West Florida was conducted. Certain factors which have been previously implicated in the literature as influencing the corrosion of engineering materials in atmospheric exposure were isolated and explored. In particular, the effect of sample size and orientation was explored. Low carbon steel (C1010) witness coupons were exposed in vertical non-sheltered, vertical sheltered, and tilted non-sheltered conditions. The effect of surface area on measured steel mass loss was also explored to identify the veracity of the so-called “edge effect”. Efforts were made to correlate meteorological atmospheric conditions (temperature, relative humidity, wind speed, wind direction, etc.) to the monthly assessment of corrosion damage. Results were assessed in terms of steel mass loss. Additive composite monthly corrosion damage tended to significantly overshoot the observed cumulative corrosion damage for samples exposed over the same period. This observation, among others presented herein, suggests that exposure of samples for less than 6 months is not an adequate predictor of long-term, natural exposure. Additionally, a smaller sample had a larger area-normalized mass loss than a larger sample. The influence of the sample edge (especially the bottom edge) was implicated in causing this difference. Full article
(This article belongs to the Special Issue Atmospheric Corrosion of Materials)
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15 pages, 11832 KiB  
Article
Degradation of Steel Wires in Bimetallic Aluminum–Steel Conductors Exposed to Severe Corrosion Conditions
by Alan Rondineau, Laurent Gaillet, Lamine Dieng and Sébastien Langlois
Corros. Mater. Degrad. 2022, 3(4), 646-660; https://doi.org/10.3390/cmd3040035 - 10 Nov 2022
Viewed by 2034
Abstract
High-voltage electrical cables are prone to saline corrosion, mostly in coastal environments. Steel wires are a crucial element in withstanding the mechanical solicitations of commonly used aluminum conductor steel reinforced (ACSR) cables. An experimental accelerated corrosion test was made, using salt spray tests [...] Read more.
High-voltage electrical cables are prone to saline corrosion, mostly in coastal environments. Steel wires are a crucial element in withstanding the mechanical solicitations of commonly used aluminum conductor steel reinforced (ACSR) cables. An experimental accelerated corrosion test was made, using salt spray tests on greased and ungreased ACSR cables and individual galvanized steel wires. The corrosion mechanism occurring on the specimens was observed by optical microscopy for several durations of corrosion, to determine the evolution of the galvanic layer and steel substrate degradation. This study was completed by an SEM (Scanning Electron Microscopy) and Raman spectroscopy analysis to characterize the corrosion products occurring on the galvanized steel wires. An estimation of the evolution of the mean zinc thickness loss is also given, for each type of specimen. It is shown that the loss rate of the zinc layer is significantly reduced by the presence of aluminum layers around the steel wires and by the effect of the grease. Tensile tests were made on the exposed galvanized steel wires which led to fracture surface observations to assess the effect of corrosion on the evolution of mechanical properties. Full article
(This article belongs to the Special Issue Atmospheric Corrosion of Materials)
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11 pages, 5781 KiB  
Article
Classic Evans’s Drop Corrosion Experiment Investigated in Terms of a Tertiary Current and Potential Distribution
by Abraham Sainz-Rosales, Xóchitl Ocampo-Lazcarro, Azalia Hernández-Pérez, Ana Gabriela González-Gutiérrez, Erika Roxana Larios-Durán, Carlos Ponce de León, Frank C. Walsh, Maximiliano Bárcena-Soto and Norberto Casillas
Corros. Mater. Degrad. 2022, 3(2), 270-280; https://doi.org/10.3390/cmd3020016 - 10 Jun 2022
Cited by 5 | Viewed by 3014
Abstract
Background: Evans’s drop is a classic corrosion experiment that is nearly 100 years old, and it is analogous to other corrosion systems promoted by O2 gradients. The availability of more robust finite element software packages opens the possibility to reach a deeper [...] Read more.
Background: Evans’s drop is a classic corrosion experiment that is nearly 100 years old, and it is analogous to other corrosion systems promoted by O2 gradients. The availability of more robust finite element software packages opens the possibility to reach a deeper understanding of these kind of corrosion systems. Methodology: In order to solve the problem, the model includes the governing mass transport diffusion and migration equation and the material balance in a nonsteady state by the finite element method. This is performed using COMSOL Multiphysics to predict the tertiary current and potential distribution considering the geometry, reaction kinetics, and mass transport for each ionic species. Significant Findings: A simulation of the tertiary current and potential distribution of the Evans’s drop corrosion experiment on an iron surface is presented. An oxygen concentration difference of 0.18 mol m−3 between the center and the drop periphery sets up a potential difference of 60 mV which acts as a corrosion driving force. Reaction kinetics are described by Tafel equations. Results include the evolution of concentration profiles for OH−, Fe2+, Fe3+, Fe(OH)2, and Fe(OH)3. Full article
(This article belongs to the Special Issue Atmospheric Corrosion of Materials)
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Review

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14 pages, 2835 KiB  
Review
Atmospheric Corrosion of Silver and Silver Nanoparticles
by Vicki J. Keast
Corros. Mater. Degrad. 2022, 3(2), 221-234; https://doi.org/10.3390/cmd3020013 - 24 May 2022
Cited by 11 | Viewed by 7471
Abstract
Even though it is a noble metal, silver will corrode in ambient atmospheres, predominantly by reacting with sulfur-containing gases such as hydrogen sulfide (H2S) and carbonyl sulfide (OCS) to form the silver sulfide (Ag2S) acanthite. Other aspects of the [...] Read more.
Even though it is a noble metal, silver will corrode in ambient atmospheres, predominantly by reacting with sulfur-containing gases such as hydrogen sulfide (H2S) and carbonyl sulfide (OCS) to form the silver sulfide (Ag2S) acanthite. Other aspects of the environment, such as relative humidity and the presence of oxidizing species, also play a critical role. With the emergence of silver nanoparticles for a range of technological and medical applications, there has been a revival of interest in the corrosion behavior of this important metal. This article reviews the current understanding of the atmospheric corrosion of silver in both the bulk and nanoparticle forms. Gaps in our current understanding and areas for future investigation are identified. Full article
(This article belongs to the Special Issue Atmospheric Corrosion of Materials)
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