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Research on Corrosion Behavior of Metallic Materials

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A Special Issue of Materials (ISSN 1996-1944) belonging to the section "Corrosion".

Deadline for manuscript submissions: 20 November 2026 | Viewed by 2886

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Dr. Juan Ignacio Ahuir-Torres

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School of Engineering, Liverpool John Moores University, Liverpool L3 5AH, UK
Interests: corrosion; electrochemistry; additive manufacturing; laser processing; tribocorrosion; tribology
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Special Issue Information

Dear Colleagues,

We are pleased to announce the Special Issue, “Research on Corrosion Behavior of Metallic Material”, which will focus on various corrosion processes in metallic materials. The scope of this issue includes, but is not limited to, corrosion phenomena at high temperature, exposure to body fluid, immersion, and fog in an aggressive environment. Additionally, the influence of the metallic material fabrication on corrosion behavior will be a key topic in this Special Issue, including laser processing, additive manufacturing, welding, soldering, anodising, and surface treatment. This issue will also feature studies exploring the development of innovative electrochemical techniques to characterize the corrosion, such as electrochemical impedance spectroscopy, the Mott–Schottky method, and electrochemical noise. Furthermore, research is being conducted on novel corrosion inhibitors, including natural inhibitors and rare-earth inhibitors. In addition, the corrosion model studies will also be considered for this Special Issue.

Dr. Juan Ignacio Ahuir-Torres
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 250 words) can be sent to the Editorial Office for assessment.

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-anonymized 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
metallic materials
electrochemistry
additive manufacturing
corrosive environments
tribocorrosion
corrosion inhibitor
corrosion at heat temperature

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Published Papers (4 papers)

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Research

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12 pages, 2417 KB

Open AccessArticle

Bonding Strength of the CFRP and AA6061 Joint Using Ascorbic Acid and Sodium Chloride Surface Treatment

by Donggil Kang, Jaeha Kim, Hogyeong Seong, Jaejun Yoon and Seungboo Jung

Materials 2026, 19(12), 2594; https://doi.org/10.3390/ma19122594 - 16 Jun 2026

Viewed by 307

Abstract

The adhesive bonding of aluminum with other materials is widely used in the aerospace, marine, automotive and railroad industries that require lightweight materials. Adhesive bonding has the advantages of reduced corrosion, stress concentration, and cost effectiveness. To improve bonding strength and performance, we examined the use of ascorbic acid (vitamin C), which is a water-soluble compound and a natural reducing agent. Owing to its reducing power and acidity, ascorbic acid allows the Al etching process to proceed efficiently to increase the surface roughness and prevent Al oxidation. In addition, this study used an eco-friendly technique of simply immersing aluminum substrates in an ascorbic acid solution with sodium chloride. The surface free energy was evaluated using the sessile drop method and calculated using the Owens–Wendt–Rabel and Kaelble method. Confocal microscope was used to investigate the roughness of the surface, and the functional groups of Al surface were analyzed by X-ray photoelectron spectroscopy. The bonding strength was measured using the single-lap joint shear test. Compared to aluminum without treatment, the bonding strength of a treated AA 6061 was enhanced by 58.6%. Full article

(This article belongs to the Special Issue Research on Corrosion Behavior of Metallic Materials)

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17 pages, 3379 KB

Open AccessArticle

The Effect of Shot Peening on Corrosion Resistance of 18Ni300 Maraging Steel Manufactured by LPBF

by Ji-Min Yun, Ho-Seok Nam, Ki-Hang Shin, Kwon-Hoo Kim and Ki-Woo Nam

Materials 2026, 19(8), 1619; https://doi.org/10.3390/ma19081619 - 17 Apr 2026

Viewed by 580

Abstract

This study investigated the correlation between mechanical strengthening and electrochemical corrosion behavior in 18Ni300 maraging steel fabricated via laser powder bed fusion (LPBF). To evaluate the impact of post-processing, specimens were analyzed under four conditions: solution treated (S), solution peened (SP), solution aged (SA), and solution aged peened (SAP). The aging treatment (490 °C for 6 h) effectively enhanced the corrosion resistance by homogenizing the martensitic matrix and promoting the formation of a stable passive film, resulting in the lowest corrosion current density (

i_{c o r r}

of 1.716 × 10⁻⁶ A/cm²). In contrast, the application of shot peening after aging (SAP) significantly degraded the corrosion resistance, characterized by the most negative corrosion potential (

E_{c o r r}

of −0.374 V and a 2.4 times increase in

i_{c o r r}

compared to the SA condition. Quantitative analysis revealed that the 1250 MPa of compressive residual stress induced by peening increased the thermodynamic instability of the surface through extreme lattice distortion, thereby lowering the activation energy for anodic dissolution. Furthermore, the increased surface roughness (60.68 µm) expanded the effective electrochemical reaction area, acting as a kinetic accelerator for corrosion. The results demonstrate that while the SA process provides an optimal balance between microstructural stability and corrosion resistance, additional shot peening (SAP) imposes a significant corrosion penalty despite its mechanical benefits. This study concludes that for 18Ni300 maraging steel, the trade-off between mechanical reinforcement and electrochemical stability must be carefully managed, emphasizing the need for surface stabilization when high-intensity peening is applied in corrosive environments. Full article

(This article belongs to the Special Issue Research on Corrosion Behavior of Metallic Materials)

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21 pages, 5454 KB

Open AccessEditor’s ChoiceArticle

An Electrochemical Study of the Corrosion Behaviour of the Polished Atomic Diffusion Additive Manufactured 17-4PH Stainless Steel Using Centrifugal Mass Finishing Method in Saltwater

by Juan Ignacio Ahuir-Torres, Xiaoxiao Liu, Jackson Chadwick and Tahsin Tecelli Öpöz

Materials 2025, 18(22), 5148; https://doi.org/10.3390/ma18225148 - 12 Nov 2025

Cited by 1 | Viewed by 994

Abstract

Additive manufacturing (AM) enables the fabrication of complex geometries and high-performance alloys such as 17-4PH stainless steel. However, the surface defects inherent to AM components compromise corrosion resistance. The post surface treatment can reduce and eliminate these defects. This study examines the effect of centrifugal mass finishing on the corrosion behaviour of 17-4PH stainless steel produced by AM. Corrosion behaviour of the samples in a 0.6 M NaCl solution is assessed using electrochemical technique testing, including asymmetry electrochemical nose, potentiodynamic polarisation curves, electrochemical impedance spectroscopy, and Mott-Schottky. All electrochemical testing were conducted in concordance with the specifications of ASTM standards. The electrochemical impedance spectroscopy were performed over period ranging from 2 h to 96 h with intervals of approximately one day. Finished specimens exhibit significantly improved corrosion resistance compared with as-built counterparts. Notably, the polished surfaces demonstrate spontaneous oxidised layer recovery between −0.297 V and 0 V, indicative of the enhancement of the protection during early immersion stages. This behaviour is attributed to surface modifications induced by the finishing process, including reduced roughness in 78% and imperfections. These findings highlight the importance of optimising post-processing protocols to improve the durability of AM stainless steels in aggressive environments. Full article

(This article belongs to the Special Issue Research on Corrosion Behavior of Metallic Materials)

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Review

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29 pages, 27924 KB

Open AccessReview

Corrosion of Embedded Carbon Steels, Carbonation and Chloride Diffusion in Low-Clinker Hybrid and LC³-50 Cements: A Critical Review

by Asunción Bautista, Carlos Blanco and Francisco Velasco

Materials 2026, 19(16), 3521; https://doi.org/10.3390/ma19163521 - 19 Aug 2026

Viewed by 464

Abstract

Portland cement (PC) is responsible for about 7–9% of the CO₂ emissions worldwide. Alkali-activated materials (AAMs) are alternatives that have been intensely researched in recent decades, but some of their characteristics have hindered their extensive use in construction. Hybrid cements (HCs) and limestone calcined clay cements (LC³-50) are other, more innovative alternatives to PC, which seem easier to implement. Nowadays, there is active research about them, and pioneering studies about the durability of carbon steel reinforcements with these two types of binders are beginning to be published. In this review, the properties of HC and LC³-50 are briefly summarized and related with those of PC and AAMs. The uncertainties implied by using carbonation and chloride diffusion tests designed for PC to compare materials with different compositions are discussed. Using electrochemical methods seems logical to obtain full information about the durability of reinforcements in the innovative binders. However, these alternative binders have special features that can sometimes make the traditional electrochemical approach used yield misleading results. Factors such as the high resistivity some alternative mortars can exhibit, or the possible development of redox processes in the binder due to the nature of the precursors, must be borne in mind. Full article

(This article belongs to the Special Issue Research on Corrosion Behavior of Metallic Materials)

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