Special Issue "Development of Mechanical, Corrosion Resistance, and Antibacterial Properties of Steels"

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

Deadline for manuscript submissions: 31 May 2020.

Special Issue Editors

Dr. Crtomir Donik
E-Mail Website
Guest Editor
Institute of Metals and Technology, Lepi pot 11, 1000 Ljubljana, SLOVENIA
Interests: corrosion; metal materials; porous materials; characterization; porous metals
Special Issues and Collections in MDPI journals
Assist. Prof. Dr. Marjetka Conradi
E-Mail Website
Guest Editor
Institute of Metals and Technology Ljubljana, Ljubljana, Slovenia
Interests: mechanical properties; materials science; composites; corrosion; corrosion protection; colloids; publishing; Physics of surfaces and interfaces, free-standing films of liquid crystals; Physics of colloidal systems in isotropic and anisotropic media; Polymer (nano)composites (physical, mechanical properties/testing; Corrosion of metallic materials; Corrosion protection coatings; Biocompatible materials, coatings; Surface (nano)structuring, tailoring surface properties for specific end-use

Special Issue Information

Dear Colleagues,

The scope of this Special Issue “Mechanical, Corrosion Resistance, and Antibacterial Properties of Steels” is the research on the latest developments in areas of materials mechanical properties and characterization, pure/applied corrosion and phenomena, and advanced understanding of bacterial adhesion with induced antibacterial properties of steels.

Authors are invited to present their research using novel approaches related to basic material properties and microstructure affecting the mechanical properties, corrosion resistance, as well as antibacterial properties of steels. Appropriate submissions should reflect recent developments in the science and technology of steels through the latest scientific research achievements in new processes and their dissemination and applications.

The papers are welcome to provide:

  • Advanced understanding of the structure and mechanical properties of steels as well as the discovery or development and characterization of the structure of improved steels with novel functional or mechanical properties of potential engineering interests;
  • Latest developments in areas of corrosion mechanisms and corrosion control, passivity, anodic oxidation, and biochemical corrosion;
  • Improvements of the antibacterial properties of steels by changing the chemical composition of steels or by the application of specific coatings.

This Special Issue will publish original peer-reviewed papers in the fields of surface science and engineering and forms an important link between metallurgists, materials scientists, and all investigators of metallic materials for different demanding applications.

Dr. Crtomir Donik
Assist. Prof. Dr. Marjetka Conradi
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 papers will be 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. 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 2000 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

  • mechanical properties
  • characterization
  • corrosion
  • electrochemical characterization
  • spectroscopic characterization
  • antibacterial properties
  • coating/metal interfaces

Published Papers (3 papers)

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Research

Open AccessFeature PaperArticle
Monitoring the Corrosion of Steel in Concrete Exposed to a Marine Environment
Materials 2020, 13(2), 407; https://doi.org/10.3390/ma13020407 - 15 Jan 2020
Abstract
Reinforced concrete structures require continuous monitoring and maintenance to prevent corrosion of the carbon steel reinforcement. In this work, concrete columns with carbon and stainless steel reinforcements were exposed to a real marine environment. In order to monitor the corrosion processes, two types [...] Read more.
Reinforced concrete structures require continuous monitoring and maintenance to prevent corrosion of the carbon steel reinforcement. In this work, concrete columns with carbon and stainless steel reinforcements were exposed to a real marine environment. In order to monitor the corrosion processes, two types of corrosion probes were embedded in these columns at different height levels. The results from the monitoring of the probes were compared to the actual corrosion damage in the different exposure zones. Electrical resistance (ER) probes and coupled multi-electrodes (CMEs) were shown to be promising methods for long-term corrosion monitoring in concrete. Correlations between the different exposure zones and the corrosion processes of the steel in the concrete were found. Macrocell corrosion properties and the distribution of the separated anodic/cathodic places on the steel in chloride-contaminated concrete were addressed as two of the key issues for understanding the corrosion mechanisms in such environments. The specific advantages and limitations of the tested measuring techniques for long-term corrosion monitoring were also indicated. The results of the measurements and the corrosion damage evaluation clearly confirmed that the tested stainless steels (AISI 304 and AISI 304L) in a chloride-contaminated environment behave significantly better than ordinary carbon steel, with corrosion rates from 110× to 9500× lower in the most severe (tidal) exposure conditions. Full article
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Open AccessArticle
Activation and Repassivation of Stainless Steels in Artificial Brines as a Function of pH
Materials 2019, 12(23), 3811; https://doi.org/10.3390/ma12233811 - 20 Nov 2019
Abstract
When planning oil wells with stainless steel components, two possible reasons for depassivation have to be considered—chemical depassivation caused by acidizing jobs and mechanical depassivation caused by various tools and hard particles. The study explores conditions causing chemical activation of investigated steels and [...] Read more.
When planning oil wells with stainless steel components, two possible reasons for depassivation have to be considered—chemical depassivation caused by acidizing jobs and mechanical depassivation caused by various tools and hard particles. The study explores conditions causing chemical activation of investigated steels and circumstances under which repassivation occurs after activation. The main focus of the study is to determine, how quickly various steels can repassivate under different conditions and to find pH values where repassivation will occur after depassivation. The investigated steels were ferritic (martensitic or bainitic) in the cases of 13Cr, 13Cr6Ni2Mo, and 17Cr4Ni2Mo, austenitic in the case of 17Cr12Ni2Mo, and duplex (austenitic and ferritic) in the case of 22Cr5Ni3Mo. Potentiodynamic experiments were employed to obtain electrochemical properties of investigated steels, followed by immersion tests to find ultimate conditions, where the steels still retain their passivity. After obtaining this information, scratch tests were performed to study the repassivation kinetics. It was found that repassivation times are similar for nearly all investigated steels independent of their chemical composition and microstructure. Full article
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Open AccessArticle
The Influence of Surface Wettability and Topography on the Bioactivity of TiO2/Epoxy Coatings on AISI 316L Stainless Steel
Materials 2019, 12(11), 1877; https://doi.org/10.3390/ma12111877 - 11 Jun 2019
Cited by 2
Abstract
Epoxy/TiO2/epoxy and epoxy/FAS-TiO2/epoxy coatings were applied to the surface of AISI 316L stainless steel with the aim to improve the biocompatibility and antibacterial properties. Contact-angle measurements were used to evaluate the wetting properties of the epoxy, epoxy/TiO2/epoxy [...] Read more.
Epoxy/TiO2/epoxy and epoxy/FAS-TiO2/epoxy coatings were applied to the surface of AISI 316L stainless steel with the aim to improve the biocompatibility and antibacterial properties. Contact-angle measurements were used to evaluate the wetting properties of the epoxy, epoxy/TiO2/epoxy and epoxy/FAS-TiO2/epoxy coatings. The epoxy and epoxy/TiO2/epoxy coatings were hydrophilic compared with the strongly hydrophobic epoxy/FAS-TiO2/epoxy coating. The average surface roughness (Sa) of the epoxy/FAS-TiO2/epoxy coating was higher than that of the epoxy/TiO2/epoxy coating due to the formation of agglomerates. The biocompatibility evaluation revealed that the cell attachment was significantly higher on the epoxy/FAS-TiO2/epoxy and epoxy/TiO2/epoxy coatings compared with the pure epoxy coating. We also observed improved antibacterial properties for the epoxy coatings with the addition of both TiO2 and FAS-TiO2 nanoparticles. Full article
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Plasma treatment for surface finishing of vascular implants
Authors: Ita Junkar *, Metka Benčina, Janez Kovač, Rok Zaplotnik, Miran Mozetič, Aleš Iglič
Corresponding author: [email protected]

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