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Corrosion Mechanism and Protection Technology of Metallic Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Corrosion".

Deadline for manuscript submissions: 10 October 2024 | Viewed by 3316

Special Issue Editors


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Guest Editor
Department of Mechanical and Aerospace Engineering, Benjamin M. Statler College of Engineering and Mineral Resources, West Virginia University, Morgantown, WV 26506, USA
Interests: high-temperature oxidation, hot corrosion, high-entropy alloys; electrochemistry

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Guest Editor
Department of Mechanical & Materials Engineering, University of Nebraska–Lincoln, Lincoln, NE, USA
Interests: field-assisted sintering; laser processing; high-entropy ceramics and alloys; lunar soil simulants; UHTCs

Special Issue Information

Dear Colleagues,

According to several studies in the last 30 years, the annual direct cost of corrosion to an industrial company is up to 3.1% of the country’s gross national product. Moreover, the corrosion of metallic materials also significantly impairs human safety and the environment. To mitigate the negative effects associated with corrosion, it is of significant importance to conduct research on corrosion to discover its underlying mechanism and to develop effective and efficient methods to mitigate the corrosion process. The intent of this Special Issue is to provide an overview of the new advances in the relevant study of corrosion, ranging from fundamental studies to applications.

This Special Issue covers a whole spectrum of investigations and studies on metallic corrosion, including stress corrosion cracking, soil corrosion, atmospheric corrosion, and high-temperature corrosion, which is meaningful and helpful to understand the corrosion mechanism in different media. In addition, research on novel methods to mitigate the degradation of base metals, including the development of new coatings, new corrosion inhibitors, and cathodic protection, is also welcome.

Dr. Shanshan Hu
Dr. Xiang Zhang
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. Materials is an international peer-reviewed open access semimonthly 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 2600 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.

Keywords

  • metal corrosion
  • coating development
  • oxidation
  • cathodic protection
  • corrosion inhibitor

Published Papers (3 papers)

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Research

10 pages, 3972 KiB  
Communication
Pioneering Enhanced Corrosion Resistance along the Normal Plane of an Ultra-Light Mg-Li Extruded Sheet
by Jiexi Liang, Binbin Deng, Chuanqiang Li, Yong Dong, Naiguang Wang, Zhengrong Zhang and Shidong Wang
Materials 2023, 16(19), 6435; https://doi.org/10.3390/ma16196435 - 27 Sep 2023
Viewed by 639
Abstract
The microstructure and corrosion anisotropy of the Mg-5Li extruded sheet were investigated in this work. Three distinct samples cut from the normal plane (A), longitudinal plane (B), and cross-sectional plane (C) of the as-extruded sheet were prepared. The microstructure was analyzed using optical [...] Read more.
The microstructure and corrosion anisotropy of the Mg-5Li extruded sheet were investigated in this work. Three distinct samples cut from the normal plane (A), longitudinal plane (B), and cross-sectional plane (C) of the as-extruded sheet were prepared. The microstructure was analyzed using optical microscopy (OM), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The corrosion resistance and behaviors of the three samples in a 0.1 mol/L NaCl solution were evaluated by employing hydrogen evolution, mass loss testing, electrochemical assessments, and corrosion morphology analyses. The results revealed that sample A displayed a distinctive bimodal (0002) basal texture, along with clearly distinguishably larger grain sizes than the other samples. The effect of grain size and crystallographic orientation on the corrosion resistance was highlighted, indicating the pioneering corrosion resistance of sample A and the lowest corrosion resistance of sample C. Furthermore, all three samples exhibited the characteristic filiform corrosion during the initial stages of corrosion, progressing into the formation of corrosion pits, with sample C displaying pronounced susceptibility. Full article
(This article belongs to the Special Issue Corrosion Mechanism and Protection Technology of Metallic Materials)
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20 pages, 17038 KiB  
Article
Microstructural Understanding of Flow Accelerated Corrosion of SA106B Carbon Steel in High-Temperature Water with Different Flow Velocities
by Ying Hu, Long Xin, Chang Hong, Yongming Han and Yonghao Lu
Materials 2023, 16(11), 3981; https://doi.org/10.3390/ma16113981 - 26 May 2023
Cited by 4 | Viewed by 1165
Abstract
All light or heavy water reactors fabricated with carbon steels suffer from flow-accelerated corrosion (FAC). The FAC degradation of SA106B with different flow velocities was investigated in terms of microstructure. As flow velocity increased, the major corrosion type changed from general corrosion to [...] Read more.
All light or heavy water reactors fabricated with carbon steels suffer from flow-accelerated corrosion (FAC). The FAC degradation of SA106B with different flow velocities was investigated in terms of microstructure. As flow velocity increased, the major corrosion type changed from general corrosion to localized corrosion. Severe localized corrosion occurred in the pearlite zone, which can be the prior location for generating pits. After normalizing, the improvement in microstructure homogeneity reduced the oxidation kinetics and lowered cracking sensitivity, causing a decrease in FAC rates of 33.28%, 22.47%, 22.15%, and 17.53% at flow velocity of 0 m/s, 1.63 m/s, 2.99 m/s, and 4.34 m/s, respectively. Additionally, localized corrosion tendency was decreased by reducing the micro-galvanic effect and tensile stresses in oxide film. The maximum localized corrosion rate decreased by 21.7%, 13.5%, 13.8%, and 25.4% at flow velocity of 0 m/s, 1.63 m/s, 2.99 m/s, and 4.34 m/s, respectively. Full article
(This article belongs to the Special Issue Corrosion Mechanism and Protection Technology of Metallic Materials)
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15 pages, 6003 KiB  
Article
Effect of I-Phase on Microstructure and Corrosion Resistance of Mg-8.5Li-6.5Zn-1.2Y Alloy
by Ziming Fang, Liangxu He, Jiaxiu Wang, Xiaochun Ma, Guixiang Wang, Ruizhi Wu, Siyuan Jin, Jiahao Wang, Zihui Lu, Zhenzhao Yang, Boris Krit, Sergey Betsofen and Iya I. Tashlykova-Bushkevich
Materials 2023, 16(8), 3007; https://doi.org/10.3390/ma16083007 - 10 Apr 2023
Cited by 3 | Viewed by 1045
Abstract
The effects of solid solution treatment duration on the corrosion behavior and microstructure behavior of the cast Mg-8.5Li-6.5Zn-1.2Y (wt.%) alloy were investigated. This study revealed that with the treatment time for solid solutions increasing from 2 h to 6 h, the amount of [...] Read more.
The effects of solid solution treatment duration on the corrosion behavior and microstructure behavior of the cast Mg-8.5Li-6.5Zn-1.2Y (wt.%) alloy were investigated. This study revealed that with the treatment time for solid solutions increasing from 2 h to 6 h, the amount of α-Mg phase gradually decreases, and the alloy presents a needle-like shape after solid solution treatment for 6 h. Meanwhile, when the solid solution treatment time increases, the I-phase content drops. Exceptionally, under 4 h of solid solution treatment, the I-phase content has increased, and it is dispersed uniformly over the matrix. What we found in our hydrogen evolution experiments is that the hydrogen evolution rate of the as-cast Mg-8.5Li-6.5Zn-1.2Y alloy following solid solution processing for 4 h is 14.31 mL·cm−2·h−1, which is the highest rate. In the electrochemical measurement, the corrosion current density (icorr) value of as-cast Mg-8.5Li-6.5Zn-1.2Y alloy following solid solution processing for 4 h is 1.98 × 10−5, which is the lowest density. These results indicate that solid solution treatment can significantly improve the corrosion resistance of the Mg-8.5Li-6.5Zn-1.2Y alloy. The I-phase and the α-Mg phase are the primary elements influencing the corrosion resistance of the Mg-8.5Li-6.5Zn-1.2Y alloy. The existence of the I-phase and the border dividing the α-Mg phase and β-Li phase easily form galvanic corrosion. Although the I-phase and the boundary between the α-Mg phase and β-Li phase will be corrosion breeding sites, they are more effective in inhibiting corrosion. Full article
(This article belongs to the Special Issue Corrosion Mechanism and Protection Technology of Metallic Materials)
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