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Corrosion: A Phenomenon Starting at Atomic Level Causing a Huge Impact on Structures

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (1 May 2022) | Viewed by 2887

Special Issue Editors


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Guest Editor
Department of Mechanical Engineering, School of Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
Interests: coatings technologies; fatigue and stress; corrosion cracking; nanoindentation; material characterization; finite elements method (FEM); additive manufacturing; nanotechnology; biomaterials and bioengineering; shape memory alloys; porous materials
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Materials Science and Engineering, Director of the National Corrosion and Materials Reliability Center, Texas A&M University, College Station, TX, USA
Interests: degradation of materials, including passivation and localized corrosion of metals and alloys (CRA, shape memory alloys, high-entropy alloys); additive manufacturing of alloys, polymers, and oxides; corrosion inhibition; multifunctional and self-healing coatings; multiscale-electrochemical measurements; pipeline integrity management, including corrosion defect assessment by numerical modeling, and data driven corrosion assessment (machine learning, neural network)
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Recent theoretical and experimental developments in the electrochemistry of materials are among the most highly exploited research areas in the field of corrosion science and engineering. This has been primarily spurred by the need for durability in demanding environmental conditions in the aerospace, medical, automotive, and chemical industries as well as in oil and gas technologies. Driven by the current state of knowledge of corrosion prevention mechanisms, the need to maintain structural material integrity and reliability assets under harsh environments, and a renewed impetus towards durability of new nanostructured coating systems, we have seen a huge increase in experimental and theoretical activities.

The manufacture, design, and assessment of high-performance nanostructured materials that are either electroactive (e.g., metals, graphene, carbon nanotubes, conductive polymers, etc.), are capable of serving as physical protection layers (organic polymers, composites materials, ceramic materials, etc.), or both provides unprecedented functionality and opportunities for multifunctional coatings protecting metallic structures (steels, stainless steels, aluminum, and magnesium).

This Special Issue will serve as a forum for papers on the following themes:
the latest developments in test methods that consider the interplay between mechanical, chemical, and electrochemical interactions and the ability to predict performance and/or reliability, with a particular emphasis on valid, accelerated performance tests and the relationship between testing technique and field performance data.

Theoretical approaches to predict the performance of new metallic alloys, multifunctional coating properties, and performance, durability, and reliability in service environments, as well as the effect of advanced manufacturing processes and surface treatments on the corrosion behavior of materials via additive manufacturing or any classic route for materials processing are also of great interest..

High-resolution techniques enabling the characterization or quantification on small scales (Nanoscale and beyond) are important to validate any theoretical calculation or hypothesis.

Prof. Dr. Nikolaos Michailidis
Prof. Dr. Homero Castaneda
Guest Editors

Manuscript Submission Information

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Keywords

  • Extreme environments
  • Performance theoretical studies
  • Reliability coatings
  • Damage evolution of coatings
  • Manufacturing processes.

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Published Papers (1 paper)

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Research

12 pages, 10824 KiB  
Article
3D X-ray Micro-CT Analysis of Rebar Corrosion in Reinforced Concrete Subjected to a Chloride-Induced Environment
by Łukasz Skarżyński, Katarzyna Kibort and Aleksandra Małachowska
Molecules 2022, 27(1), 192; https://doi.org/10.3390/molecules27010192 - 29 Dec 2021
Cited by 5 | Viewed by 2320
Abstract
The paper presents experimental investigations of the concrete covers’ protective ability to counteract rebar corrosion in reinforced concrete cubes. The concrete sample was subjected to a chloride-induced environment to get corroded and combined with an un-corroded sample. The chloride-accelerated technique can induce a [...] Read more.
The paper presents experimental investigations of the concrete covers’ protective ability to counteract rebar corrosion in reinforced concrete cubes. The concrete sample was subjected to a chloride-induced environment to get corroded and combined with an un-corroded sample. The chloride-accelerated technique can induce a high degree of corrosion within a controlled time. Moreover, detailed and thorough experimental measurements and analyses of reinforcement loss due to corrosion and its influence on concrete microstructure, were studied through 3D X-ray micro-computed tomography. The rebar outside the concrete was heavily corroded due to the chloride-accelerated test, whereas, only local surface corrosion products appeared inside the concrete. It turned out that the concrete cover showed protective ability to counteract the reinforcing-steel corrosion mechanism despite the accelerated corrosion environment. Moreover, the bond strength between the reinforcement rebar and concrete was not visibly affected since the failure force in the pull-out test and failure mechanisms, observed by 3D X-ray micro-CT, were similar for corroded and un-corroded samples. The failure occurred due to radial cracks with a maximum width equal to approximately 0.25 mm. Full article
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