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Corrosion and Crack Behavior of Metallic Materials in High-Temperature Environment
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Corrosion and Crack Behavior of Metallic Materials in High-Temperature Environment

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

Deadline for manuscript submissions: 10 March 2025 | Viewed by 3557

Special Issue Editors

Dr. Xiangyu Zhong

E-Mail Website
Guest Editor
Frontier Research Initiative, New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan.
Interests: high-temperature corrosion; environmental-assisted cracking; corrosion resistant alloys design
Dr. Pan Liu

E-Mail Website
Guest Editor
Frontier Research Initiative, New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan.
Interests: materials corrosion; electrochemistry; smart coatings

Special Issue Information

Dear Colleagues,

For a continuous building of social infrastructure and economic development, environmental compatibility is a crucial requirement for the metallic structure materials used in industrial fields with high-temperature environments, such as energy conversion system (nuclear power plants, fossil fuel power plants, fuel cell system, etc.), gas turbines industry, chemical industry, etc. It is essential to validate metallic materials against high-temperature applications. In order to prevent corrosion degradation and oxidation processes, new corrosion-resistant alloys and protective coatings are needed to serve an extended lifetime for structural materials; it is important to understand the corrosion and cracking mechanism of materials performed in such extreme environments.

I am pleased to invite and welcome you to contribute to this Special Issue, titled “Corrosion and Cracking Behavior of Metallic Materials in High-Temperature Environment”. The aim of this Issue is to discuss the corrosion and cracking behavior of metallic materials and coatings applied in high-temperature environments. The topics covered include general corrosion, localized corrosion, oxidation, stress corrosion cracking, corrosion fatigue, liquid metal embrittlement, molten salt corrosion, etc. Articles which focus on material design, modification, treatment, protection, corrosion test technique, and corrosion simulation, which are relevant to the corrosion and prevention of materials, are also welcomed.

Dr. Xiangyu Zhong
Dr. Pan Liu
Guest Editors

Manuscript Submission Information

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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

  • metallic material
  • high-entropy alloys
  • additive manufacturing
  • high-temperature oxidation
  • stress corrosion cracking
  • liquid metal embrittlement
  • energy conversion system
  • thermal barrier coating

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Published Papers (3 papers)

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Research

11 pages, 11271 KiB  
Article
Effect of Deformation Mode on Grain Characteristics and Strength–Toughness of Al-Zn-Mg-Cu Alloy
by Guohui Shi, Mingyang Yu, Kai Zhu, Weicai Ren, Kai Wen and Xiwu Li
Materials 2024, 17(18), 4633; https://doi.org/10.3390/ma17184633 - 21 Sep 2024
Viewed by 613
Abstract
The Al-Zn-Mg-Cu alloy plate is a structural material widely used in aerospace, and its rolling process plays a crucial role in determining its performance. This study investigated the effects of different pass combinations of forward and spread rolling on the grain characteristics, strength, [...] Read more.
The Al-Zn-Mg-Cu alloy plate is a structural material widely used in aerospace, and its rolling process plays a crucial role in determining its performance. This study investigated the effects of different pass combinations of forward and spread rolling on the grain characteristics, strength, and fracture toughness of Al-Zn-Mg-Cu aluminum alloy plates under industrial conditions. The results show that initially using a small pass reduction followed by a larger one can improve the grain width and thickness on the Long Transverse–Short Transverse surface. Additionally, increasing the spread rolling pass enhances the grain width-to-thickness ratio on the TS surface. Performance tests indicate that grain characteristics have minimal influence on room-temperature tensile properties. However, a higher grain width-to-thickness ratio significantly improves the alloy’s fracture toughness. Full article
(This article belongs to the Special Issue Corrosion and Crack Behavior of Metallic Materials in High-Temperature Environment)
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13 pages, 9385 KiB  
Article
Yttria-Stabilized Zirconia Composite Coating as Barrier to Reduce Hydrogen Permeation into Steel
by Jianmeng Wu, Jiaqi Xie, Mengyuan He, Jingyi Zhang and Songjie Li
Materials 2024, 17(12), 3017; https://doi.org/10.3390/ma17123017 - 20 Jun 2024
Viewed by 978
Abstract
Hydrogen atoms can enter into metallic materials through penetration and diffusion, leading to the degradation of the mechanical properties of the materials, and the application of hydrogen barrier coatings is an effective means to alleviate this problem. Zirconia coatings (ZrO2) have [...] Read more.
Hydrogen atoms can enter into metallic materials through penetration and diffusion, leading to the degradation of the mechanical properties of the materials, and the application of hydrogen barrier coatings is an effective means to alleviate this problem. Zirconia coatings (ZrO2) have been widely studied as a common hydrogen barrier coating, but zirconia undergoes a crystalline transition with temperature change, which can lead to volumetric changes in the coating and thus cause problems such as cracking and peeling of the coating. In this work, ZrO2 coating was prepared on a Q235 matrix using a sol-gel method, while yttria-stabilized zirconia (YSZ) coatings with different contents of rare earth elements were prepared in order to alleviate a series of problems caused by the crystal form transformation of ZrO2. The coating performances were evaluated by the electrochemical hydrogen penetration test, pencil hardness test, scratch test, and high-temperature oxidation test. The results show that yttrium can improve the stability of the high-temperature phase of ZrO2, alleviating the cracking problem of the coating due to the volume change triggered by the crystalline transition; improve the consistency of the coating; and refine the grain size of the oxide. The performance of YSZ coating was strongly influenced by the yttria doping mass, and the coating with 10 wt% yttria doping had the best hydrogen barrier performance, the best antioxidant performance, and the largest adhesion. Compared with the matrix, the steady-state hydrogen current density of the YSZ coating decreased by 72.3%, the antioxidant performance was improved by 65.8%, and the ZrO2 coating hardness and adhesion levels were B and 4B, respectively, while YSZ coating hardness and adhesion were upgraded to 2H and 5B. With the further increase in yttrium doping mass, the hardness of the coating continued to improve, but the defects of the coating increased, resulting in a decrease in the hydrogen barrier performance, antioxidant performance, and adhesion. In this work, the various performances of ZrO2 coating were significantly improved by doping with the rare earth element, which provides a reference for further development and application of oxide coatings. Full article
(This article belongs to the Special Issue Corrosion and Crack Behavior of Metallic Materials in High-Temperature Environment)
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14 pages, 4527 KiB  
Article
Crevice Corrosion Behavior of 201 Stainless Steel in NaCl Solutions with Different pH Values by In Situ Monitoring
by Zejie Zhu, Hang Zhang, Yihan Bai, Pan Liu, Haoran Yuan, Jiangying Wang and Fahe Cao
Materials 2024, 17(5), 1158; https://doi.org/10.3390/ma17051158 - 1 Mar 2024
Cited by 2 | Viewed by 1263
Abstract
Crevice corrosion (CC) behavior of 201 stainless steel (SS) in 1 M NaCl + x M HCl/y M NaOH solutions with various pH was investigated using SECM and optical microscopic observations. Results show that the CC was initiated by the decrease in pH [...] Read more.
Crevice corrosion (CC) behavior of 201 stainless steel (SS) in 1 M NaCl + x M HCl/y M NaOH solutions with various pH was investigated using SECM and optical microscopic observations. Results show that the CC was initiated by the decrease in pH value within the crevice. The pH value near the crevice mouth falls rapidly to 1.38 in the first 2 h in the strongly acidic solution, while the pH value was observed to rise firstly and then decrease in the neutral and alkaline solutions. It indicates there is no incubation phase in the CC evolution of 201-SS in a pH = 2.00 solution, while an incubation phase was observed in pH = 7.00 and 11.00 solutions. Additionally, there appeared to be a radial pH variation within the gap over time. The pH value is the lowest at the gap mouth, which is in line with the in situ optical observation result that the severely corroded region is at the mouth of the gap. The decrease in pH value inside results in the negative shift of open circuit potential (OCP) and the initiation of CC of 201-SS. The increased anodic dissolution rate in the acidic solution accelerates the breakdown of passive film inside, reducing the initiation time and stimulating the spread of CC. Full article
(This article belongs to the Special Issue Corrosion and Crack Behavior of Metallic Materials in High-Temperature Environment)
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