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Advances in Corrosion Resistance of Metal Materials
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Advances in Corrosion Resistance of Metal Materials

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

Deadline for manuscript submissions: closed (20 January 2024) | Viewed by 4361

Special Issue Editors

Prof. Dr. Xiaoning Tian

E-Mail Website
Guest Editor
Department of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, China
Interests: new graphene composite materials; porous carbon materials; supercapacitor; preparation of fuel cell electrode materials; solid acid catalysis
Special Issues, Collections and Topics in MDPI journals
Dr. Ling Qin

E-Mail Website
Guest Editor
School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China
Interests: concrete durability; magnesium based low-carbon cementitious materials; carbon sequestration of cement-based materials; solid waste resource utilization; asphalt
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The corrosion resistance of materials is an extremely important performance parameters when applied in the harsh service environment, especially in coastal environments. Metal materials are prone to losing electrons due to their high activity, leading to corrosion. In order to prevent metal corrosion, some necessary key protective measures need to be taken. A rust inhibitor is usually added to achieve the purpose of corrosion prevention in metal composite materials. Moreover, electroplating and cathodic protection are also applied for corrosion prevention of metals. Additionally, some evaluation methods of corrosion degree are also commonly used. Evaluation methods, such as electrical parameter method, mass loss method, and microscopic analysis method, are effective to quantitatively analyze the corrosion degree.

Prof. Dr. Xiaoning Tian
Dr. Ling Qin
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

  • corrosion resistance
  • metal materials
  • corrosive environment
  • evaluation methods
  • electrical parameter method

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Published Papers (3 papers)

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Research

18 pages, 5385 KiB  
Article
Corrosion of Stainless Steel in Simulated Nuclear Reactor Primary Coolant—Experiments and Modeling
by Martin Bojinov, Iva Betova, Vasil Karastoyanov and Georgi Avdeev
Materials 2024, 17(5), 1148; https://doi.org/10.3390/ma17051148 - 1 Mar 2024
Cited by 2 | Viewed by 908
Abstract
In the present paper, the effect of the evolution of primary water chemistry during power operation on the corrosion rate and conduction mechanism of oxide films on stainless steel is studied by in situ impedance spectroscopy at 300 °C/9 MPa during 1-week exposure [...] Read more.
In the present paper, the effect of the evolution of primary water chemistry during power operation on the corrosion rate and conduction mechanism of oxide films on stainless steel is studied by in situ impedance spectroscopy at 300 °C/9 MPa during 1-week exposure periods in an autoclave connected to a recirculation loop. At the end of the exposure period, the samples were anodically polarized in a wide range of potentials to evaluate the stability of the passive oxide. Separate samples of the same steel were simultaneously exposed to the coolant and subsequently analyzed by glow discharge optical emission spectroscopy (GDOES) in order to estimate the thickness and the in-depth composition of the formed oxides. Impedance data were quantitatively interpreted using the mixed-conduction model for oxide films (MCM) to estimate the rates of metal oxidation at the alloy/oxide interface, oxide dissolution and restructuring at the film/coolant interface, and ion transport in the protective corrosion layer. Full article
(This article belongs to the Special Issue Advances in Corrosion Resistance of Metal Materials)
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18 pages, 8527 KiB  
Article
Influence of Oxygen Content in the Protective Gas on Pitting Corrosion Resistance of a 316L Stainless Steel Weld Joint
by Mohammad Maroufkhani, Soroosh Hakimian, Alireza Khodabandeh, Iulian Radu, Lucas A. Hof and Mohammad Jahazi
Materials 2023, 16(17), 5968; https://doi.org/10.3390/ma16175968 - 31 Aug 2023
Cited by 1 | Viewed by 1600
Abstract
Gas tungsten arc welding (GTAW) is commonly used for joining pipelines; however, it often leads to discoloration in the heat-affected zone (HAZ). In this study, 316L pipes were welded with different concentrations of oxygen present in the argon purge gas during welding. The [...] Read more.
Gas tungsten arc welding (GTAW) is commonly used for joining pipelines; however, it often leads to discoloration in the heat-affected zone (HAZ). In this study, 316L pipes were welded with different concentrations of oxygen present in the argon purge gas during welding. The objective of this study was to investigate the effect of oxygen concentration in the protective gas on the pitting corrosion resistance of welded pipes. The experimental results showed that the thickness of the oxide layer formed in the HAZ depends on the concentration of oxygen in the protective gas. Increasing the oxygen concentration in the protective gas resulted in an increase in pitting corrosion resistance until a critical value, beyond which the resistance decreased. The results showed that the thickness of the oxide layer formed in the HAZ depends on the concentration of oxygen in the protective gas. Increasing the oxygen concentration in the protective gas increased the pitting corrosion resistance until a critical value, beyond which the resistance decreased due to the formation of iron oxide. This study provides valuable insights for improving the corrosion resistance of welded pipes in the oil and gas industry. Full article
(This article belongs to the Special Issue Advances in Corrosion Resistance of Metal Materials)
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14 pages, 3195 KiB  
Article
The Corrosion Resistance of Reinforced Reactive Powder Concrete with Secondary Aluminum Ash Exposed to NaCl Action
by Hong Jiang, Kewei Wang and Hui Wang
Materials 2023, 16(16), 5615; https://doi.org/10.3390/ma16165615 - 14 Aug 2023
Cited by 4 | Viewed by 1101
Abstract
Secondary aluminum ash (SAA) is a type of common solid waste which leads to pollution without treatment. Due to its chemical reactivity, the application of SAA to reactive powder concrete (RPC) may help solidify this solid waste while increasing its performance. However, RPC [...] Read more.
Secondary aluminum ash (SAA) is a type of common solid waste which leads to pollution without treatment. Due to its chemical reactivity, the application of SAA to reactive powder concrete (RPC) may help solidify this solid waste while increasing its performance. However, RPC is usually in active service when used with steel bars. NaCl can corrode the steel bars when reinforced RPC is used in a coastal environment. In this study, the corrosion resistance of reinforced RPC was investigated. The specimens were exposed to an environment of NaCl with freeze–thaw cycles (F-Cs) and dry–wet alternations (D-As). The corresponding mass loss rates (MRs), the electrochemical impedance spectroscopy (EIS) curves and the dynamic modulus of elasticity (DME) were measured. The results show that the MR and the DME of reinforced RPC decrease with increasing values of F-C and D-A. F-C and D-A increases lead to increased electrical resistance (R). The real part value corresponding to the extreme point of the EIS curve is increased by 0~213.7% when the SAA is added. The relationship between the imaginary part and the real part of the EIS fits the quadratic function. The equivalent circuit of the reinforced RPC is obtained from the EIS curves. The R of the rust is calculated by using the equivalent circuit. The rust’s R decreases in the quadratic function with the mass ratio of the SAA. After 200 NaCl F-Cs, the MR, the DME and the R vary within the ranges of 23.4~113.6%, −2.93~−4.76% and 4.92~13.55%. When 20 NaCl D-As are finished, the MR, the DME and the R vary within the ranges of 34.7~202.8%, −13.21~−14.93% and 120.48~486.39%. The corrosion area rates are 2.3~68.7% and 28.7~125.6% higher after exposure to 200 NaCl F-Cs and 20 NaCl D-As. When the SAA is mixed, the MR is decreased by 0~13.12%, the DME increases by 0~3.11%, the R of the reinforced RPC increases by 26.01~152.43% and the corrosion area rates are decreased by 21.39~58.62%. This study will provide a novel method for solidifying SAA while improving the chlorine salt resistance of RPC. Full article
(This article belongs to the Special Issue Advances in Corrosion Resistance of Metal Materials)
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