Corrosion Phenomena in Metals

Dear Colleagues,

Crystals is launching a Special Issue on “Corrosion Phenomena in Metals” to highlight scientific advances in fundamental and applied research on the degradation of metallic materials. As it is known, the damage caused by corrosion can manifest in several ways, including through the loss of material strength, the formation of cracks and fractures, the impairment of surface finishes, and the overall degradation of structural integrity. Consequently, the economic impact of corrosion is substantial, as it necessitates costly repairs, maintenance, and the replacement of corroded materials and equipment. Therefore, the present Special Issue is brought about to emphasize the impact of corrosion and provide a path to mitigate degradation. We welcome submissions of original research articles, short-communication articles, and critical reviews of experimental studies involving advanced characterization and electrochemical techniques to understand the structure and material properties. The topics of interest include, but are not limited to:

• Stress corrosion cracking and environment-assisted cracking;
• Localized corrosion that initiates by means of pitting or intergranular corrosion;
• Influence of corrosion inhibitor in improving the surface resistance or expediting repassivation;
• Corrosion mechanisms that explore the science behind the dissolution initiation and impedance;
• Microstructure/Nanostructure changes in metals influencing corrosion behavior or corrosion rate;
• Relationship between the electrochemical and mechanical properties, and their degradation due to corrosion;
• High-temperature oxidation and hot corrosion;
• Emerging corrosion-resistant material processing and design approaches, such as high-entropy alloys, additively manufactured alloys, and far-from-equilibrium microstructures;
• Corrosion protection via surface modification, such as metallic coating and surface hardening;
• Service lifetime prediction of metallic parts under an aggressive environment;
• External factors affecting corrosion phenomena including, but not limited to, radiation or biofouling.

Dr. Jijo Christudasjustus
Dr. Rajeev Gupta
Dr. Mohammad Umar Farooq Khan
Dr. Ulises Martin Diaz
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. Crystals is an international peer-reviewed open access monthly 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.

• stress corrosion cracking
• environment-assisted cracking
• localized corrosion
• corrosion inhibitor
• high-entropy alloys
• additively manufactured alloys
• transmission electron microscopy
• potentiodynamic polarization test
• high-temperature oxidation
• nanocrystalline alloys
• electrochemical impedance spectroscopy
• secondary phases
• metallic coating
• immersion test
• failure initiation and propagation mechanism
• corrosion mitigation
• semiconductive properties
• passive film
• modeling
• service lifetime prediction

Abstract：Herein, the corrosion performance of UNS S32205 duplex stainless steel (DSS), UNS S32304 and UNS S32001 lean DDS (LDSS) reinforcing bar in alkaline solution is presented. The loss of corrosion protection was studied from the kinetics point of view by means of Tafel slopes via cyclic potentiodynamic polarizations (CPP), in addition to the mechanical degradation due to the chlorides by testing the SS reinforcements with slow strain rate tensile test (SSRT). The higher activation of the anodic branch and the loss of toughness was related to the alloy composition and the ratio of austenite to ferrite phase. UNS S32205 had the best corrosion performance, having the slowest anodic kinetics, mainly due to the higher austenite content compared to the other LDSS, however the mechanical degradation was greater than the UNS S32304. UNS S32001, having the lowest Ni content, experienced the worst mechanical behavior as well as the most active anodic kinetics.