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Corrosion Mechanisms and Electrochemical Interfaces: In Honor of Prof. Digby...
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Corrosion Mechanisms and Electrochemical Interfaces: In Honor of Prof. Digby Macdonald

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

Deadline for manuscript submissions: 31 July 2024 | Viewed by 2817

Special Issue Editors

Dr. David M. Bastidas

E-Mail Website
Guest Editor
ROSEN USA, Inc., 14120 Interdrive East, Houston, TX 77032, USA
Interests: corrosion engineering; materials science; electrochemistry; chemistry of materials; metallurgy
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Raman Singh

E-Mail Website
Guest Editor
Departments of Mechanical & Aerospace Engineering and Chemical Engineering, Monash University, Melbourne, VIC 3800, Australia
Interests: materials degradation; corrosion; degradation of polymer and composites
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue aims to gather scientific contributions that focus on corrosion mechanisms and electrochemical interface phenomena in material degradation processes.

An ample research scenario will be covered, including a range of corrosion and material degradation topics: localized corrosion, stress corrosion cracking, hydrogen embrittlement, crevice corrosion, atmospheric corrosion, corrosion inhibitors, microbiologically induced corrosion, as well as electrochemical kinetics and thermodynamics. In addition, advanced electrochemical techniques and computational studies for corrosion prevention and prediction, including stochastic and deterministic modeling approaches, as well as artificial intelligence and machine learning are also welcome. A comprehensive approach from theory to applications is considered for diverse topics such as energy systems, nuclear plants and repositories, geothermal, construction, transportation, aerospace, medical, environmental, materials sustainability, carbon capture, net zero emissions and circular economy aspects, among others.

In this regard, this Special Issue in Honor of Prof. Digby Macdonald is devoted to communications including experimental and theoretical studies on corrosion and electrochemical interfaces appealing to material degradation, protection and performance.

Dr. David M. Bastidas
Prof. Dr. Raman Singh
Guest Editors

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 (3 papers)

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Research

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24 pages, 8467 KiB  
Article
Dissociative Adsorption of Hydrogen Molecules at Al2O3 Inclusions in Steels and Its Implications for Gaseous Hydrogen Embrittlement of Pipelines
by Yinghao Sun and Frank Cheng
Corros. Mater. Degrad. 2024, 5(2), 200-223; https://doi.org/10.3390/cmd5020008 - 02 Apr 2024
Viewed by 489
Abstract
Hydrogen embrittlement (HE) of steel pipelines in high-pressure gaseous environments is a potential threat to the pipeline integrity. The occurrence of gaseous HE is subjected to associative adsorption of hydrogen molecules (H2) at specific “active sites”, such as grain boundaries and [...] Read more.
Hydrogen embrittlement (HE) of steel pipelines in high-pressure gaseous environments is a potential threat to the pipeline integrity. The occurrence of gaseous HE is subjected to associative adsorption of hydrogen molecules (H2) at specific “active sites”, such as grain boundaries and dislocations on the steel surface, to generate hydrogen atoms (H). Non-metallic inclusions are another type of metallurgical defect potentially serving as “active sites” to cause the dissociative adsorption of H2. Al2O3 is a common inclusion contained in pipeline steels. In this work, the dissociative adsorption of hydrogen at the α-Al2O3(0001)/α-Fe(111) interface on the Fe011¯ plane was studied by density functional theory calculations. The impact of gas components of O2 and CH4 on the dissociative adsorption of hydrogen was determined. The occurrence of dissociative adsorption of hydrogen at the Al2O3 inclusion/Fe interface is favored under conditions relevant to pipeline operation. Thermodynamic feasibility was observed for Fe and O atoms, but not for Al atoms. H atoms can form more stable adsorption configurations on the Fe side of the interface, while it is less likely for H atoms to adsorb on the Al2O3 side. There is a greater tendency for the occurrence of dissociative adsorption of O2 and CH4 than of H2, due to the more favorable energetics of the former. In particular, the dissociative adsorption of O2 is preferential over that of CH4. The Al-terminated interface exhibits a higher H binding energy compared to the O-terminated interface, indicating a preference for hydrogen accumulation at the Al-terminated interface. Full article
(This article belongs to the Special Issue Corrosion Mechanisms and Electrochemical Interfaces: In Honor of Prof. Digby Macdonald)
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17 pages, 3169 KiB  
Article
The AA7075–CS1018 Galvanic Couple under Evaporating Droplets
by Marvin Montoya, Juan Genesca and Rodrigo Montoya
Corros. Mater. Degrad. 2024, 5(1), 92-108; https://doi.org/10.3390/cmd5010005 - 07 Mar 2024
Viewed by 911
Abstract
The galvanic corrosion behavior of the AA7075–CS1018 couple was examined in dynamic electrolytes using the ZRA technique. A modified electrochemical setup was developed to support the use of thin-film gel and liquid electrolytes on metallic surfaces. This allowed the collection of chemical information, [...] Read more.
The galvanic corrosion behavior of the AA7075–CS1018 couple was examined in dynamic electrolytes using the ZRA technique. A modified electrochemical setup was developed to support the use of thin-film gel and liquid electrolytes on metallic surfaces. This allowed the collection of chemical information, left behind by the liquid electrolyte during evaporation, through a thin-film gel. The analysis of the gel electrolyte film confirmed the acidification on AA7075 and the alkalinization on CS1018 but also offered novel insights on their dependence on the galvanic current. The galvanic current was proportional to the initial NaCl concentration in the range of 0.01 to 0.06 M. However, due to continuous evaporation, the NaCl concentration increased, limiting oxygen diffusion and decreasing the galvanic current, especially for electrolytes exceeding 0.06 M. The galvanic current was determined by considering the dynamic evolution (caused by the evaporation of the electrolyte film) of both the thickness of the electrolyte and its concentration. Full article
(This article belongs to the Special Issue Corrosion Mechanisms and Electrochemical Interfaces: In Honor of Prof. Digby Macdonald)
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Review

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15 pages, 5911 KiB  
Review
Distinctive Oxide Films Develop on the Surface of FeCrAl as the Environment Changes for Nuclear Fuel Cladding
by Haozheng Qu, Liang Yin, Michael Larsen and Raul B. Rebak
Corros. Mater. Degrad. 2024, 5(1), 109-123; https://doi.org/10.3390/cmd5010006 - 18 Mar 2024
Viewed by 827
Abstract
The corrosion-resistant properties of IronChromium–Aluminum (FeCrAl) alloys have been known for nearly a century. Since the 1950s, they have been explored for application in the generation of nuclear power. In the last decade, the focus has been on the use of FeCrAl as [...] Read more.
The corrosion-resistant properties of IronChromium–Aluminum (FeCrAl) alloys have been known for nearly a century. Since the 1950s, they have been explored for application in the generation of nuclear power. In the last decade, the focus has been on the use of FeCrAl as cladding for uranium dioxide fuel in light water reactors (LWRs). The corrosion resistance of this alloy depends on the oxide that it can develop on the surface. In LWRs in the vicinity of 300 °C, the external surface oxide of the FeCrAl cladding could be rich in Fe under oxidizing conditions but rich in Cr under reducing conditions. If there is an accident and the cladding is exposed to superheated steam, the cladding will protect itself by developing an alpha aluminum film on the surface. Full article
(This article belongs to the Special Issue Corrosion Mechanisms and Electrochemical Interfaces: In Honor of Prof. Digby Macdonald)
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