Special Issue "Biodegradation and Bioprotection of Metals and Alloys"

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Corrosion, Wear and Erosion".

Deadline for manuscript submissions: 29 February 2024 | Viewed by 832

Special Issue Editors

Department of Chemistry, University of Guelph, Guelph, ON N1G 2W1, Canada
Interests: corrosion; materials science; surface functionalization; electrochemistry; nanoscience
Department of Chemistry, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
Interests: electrochemistry; corrosion; materials science; surface science

Special Issue Information

Dear Colleagues,

Corrosion has a destructive impact on the economy, it is reported that each year millions of dollars (CAD) are lost due to the failure of metals and alloys in many sectors. In addition, corrosion has serious negative effects on our safety, health, and environment.

Efforts are still underway to minimize the corrosion of metals and alloys. However, understanding degradation mechanisms is the first step toward developing suitable corrosion mitigation strategies. The rate at which metallic materials corrode is not only confined by their inherent properties, but also by external agents such as temperature, the concentration of detrimental ions, extrinsic forces, and the presence of microorganisms.

Previous reports highlight that microorganisms are detrimental to most engineering materials. Thus, understanding the materials’ interactions with microorganisms under various conditions is crucial for engineering high-performance materials toward biodegradation. On the other hand, recent research found that biological films have the potential to act as functional surface layers.

The aim of this Special Issue is to gather the latest knowledge about the effects of microorganisms on metal corrosion, and vice versa. We welcome contributions in the fields of both fundamental and applied research.

The scope for this Special Issue includes, but is not limited to:

  • Mechanistic studies of materials’ biodegradation
  • Development of biomaterials and antibacterial coatings
  • Novel methods for the characterization of biocorrosion
  • Corrosion protection through biofilms
  • Microbiologically influenced corrosion

Dr. Emmanuel Mena-Morcillo
Dr. Abdelilah Asserghine
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. 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.


  • biodegradation
  • biocorrosion
  • biofouling
  • biofilms
  • biomaterials
  • bioprotection
  • biomedical alloys
  • biofunctionalization

Published Papers (1 paper)

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Corrosion Performance of Ti6Al7Nb Alloy in Simulated Body Fluid for Implant Application Characterized Using Macro- and Microelectrochemical Techniques
Coatings 2023, 13(6), 1121; https://doi.org/10.3390/coatings13061121 - 18 Jun 2023
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In this paper, the applicability of Ti6Al7Nb as a more biocompatible alternative for bone and dental implants than Ti6Al4V and pure titanium in terms of corrosion resistance and electrochemical inertness is investigated. The chemical inertness and corrosion resistance of the Ti6Al7Nb biomaterial were [...] Read more.
In this paper, the applicability of Ti6Al7Nb as a more biocompatible alternative for bone and dental implants than Ti6Al4V and pure titanium in terms of corrosion resistance and electrochemical inertness is investigated. The chemical inertness and corrosion resistance of the Ti6Al7Nb biomaterial were characterized by a multi-scale electrochemical approach during immersion in simulated physiological environments at 37 °C comparing its behavior to that of c.p. Ti, Ti6Al4V, and stainless steel. The establishment of a passive regime for Ti6Al7Nb results from the formation of a thin layer of metal oxide on the surface of the material which prevents the action of aggressive species in the physiological medium from direct reaction with the bulk of the alloy. Conventional electrochemical methods such as potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) provide quantified information on the surface film resistance and its stability domain that encompasses the potential range experienced in the human body; unfortunately, these methods only provide an average estimate of the exposed surface because they lack spatial resolution. Although local physiological environments of the human body are usually simulated using different artificial physiological solutions, and changes in the electrochemical response of a metallic material are observed in each case, similar corrosion resistances have been obtained for Ti6Al7Nb in Hank’s and Ringer’s solutions after one week of immersion (with a corrosion resistance of the order of MΩ cm2). Additionally, scanning electrochemical microscopy (SECM) provides in situ chemical images of reactive metal and passive dielectric surfaces to assess localized corrosion phenomena. In this way, it was observed that Ti6Al7Nb exhibits a high corrosion resistance consistent with a fairly stable passive regime that prevents the electron transfer reactions necessary to sustain the metal dissolution of the bulk biomaterial. Our results support the proposition of this alloy as an efficient alternative to Ti6Al4V for biomaterial applications. Full article
(This article belongs to the Special Issue Biodegradation and Bioprotection of Metals and Alloys)
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