Thin Films and Coatings for Active Corrosion Protection of Metals

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Thin Films".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 3194

Special Issue Editor


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Guest Editor
Center for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
Interests: metal passivity and corrosion; electroless and electroplating of metals; electrocatalysis; electrochemical materials sciences

Special Issue Information

Dear Colleagues,

This Special Issue is dedicated to highlighting the important progress achieved in the development of conversion coatings and oxide films in the corrosion protection of metals. Such protective layers must offer an effective physical barrier; however, defects are inevitable during the lifetime of coated structures, leading to local disruption. Therefore, an active protection based on the self-healing of defects is necessary to attain a long-term effect. For many years, the most effective corrosion protection systems were based on the use of chromate-rich surface treatment. However, legislative pressure pushes the science and industry to look for suitable alternatives for this unique material. A wide range of technologies has been investigated, demonstrating the array of alternative chemistries available for different metals. These include molybdates, vanadates, permanganate, phosphates, silanes, sol–gels, and rare-earth-based chemistries. However, only a few of them have been able to come close to or meet the corrosion protection requirements of metals.

We invite scientists to contribute with their new results achieved in the field of investigation of thin films and coatings exhibiting abilities of active corrosion protection (self-healing) of metals. The papers should provide comprehensive insight into the preparation and characterization of corrosion protection layers on various metals, including surface/interface characterization and self-healing mechanism studies.

In particular, topics of interest include but are not limited to:

  • Conversion coatings prepared by chemical or electrochemical treatment;
  • Thin films obtained by sol–gel, magnetron sputtering, ALD, PVD, CVD and other techniques;
  • Comparison of the protective and self-healing abilities of conversion and oxide coatings deposited by different technologies;
  • Mechanism of corrosion process inhibition and self-healing run;
  • Progress in thin-film characterization techniques;
  • Theory and modeling of the physical properties of thin films;
  • Surface interface characterization.

Prof. Dr. Rimantas Ramanauskas
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 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. Coatings 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.

Keywords

  • conversion and oxide coatings
  • corrosion protection
  • self-healing
  • chromium-free

Published Papers (1 paper)

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Research

15 pages, 4949 KiB  
Article
Self-Healing Properties of Cerium-Modified Molybdate Conversion Coating on Steel
by Aliona Kirdeikiene, Olga Girčiene, Laima Gudavičiūte, Vitalija Jasulaitiene, Algirdas Selskis, Skirmante Tutliene, Monika Skruodiene, Jurgis Pilipavičius, Jurga Juodkazyte and Rimantas Ramanauskas
Coatings 2021, 11(2), 194; https://doi.org/10.3390/coatings11020194 - 8 Feb 2021
Cited by 3 | Viewed by 2348
Abstract
Environmentally friendly alternatives to chromium—phosphate/molybdate and cerium-modified phosphate/molybdate conversion coatings—were deposited on a carbon steel surface. Different surface analytic techniques were applied to obtain complementary information on the composition, element distribution morphology and inner structure of the coatings in order to establish the [...] Read more.
Environmentally friendly alternatives to chromium—phosphate/molybdate and cerium-modified phosphate/molybdate conversion coatings—were deposited on a carbon steel surface. Different surface analytic techniques were applied to obtain complementary information on the composition, element distribution morphology and inner structure of the coatings in order to establish the relationship between coating properties and corrosion performance. The higher protective and stronger self-healing abilities were found for phosphate/molybdate/cerium conversion coating deposited in a sulphate-containing solution. The protective barrier strength was found to be related with certain aspects of the coating morphology such like homogeneous distribution of fine crystallites and, hence, lower number of structural defects. The self-healing ability depended on both, the composition (higher amount of Ce(IV)) and micro-structural characteristics, such as defectiveness, of the conversion layer. Full article
(This article belongs to the Special Issue Thin Films and Coatings for Active Corrosion Protection of Metals)
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