Recent Surface Treatments of Metals and Their Alloys

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Corrosion and Protection".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 3395

Special Issue Editors


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Guest Editor
School of Materials Science and Engineering, Yeungnam University, Gyeongbuk 38541, Korea
Interests: organic chemistry; anticorrosion; plasma electrolytic oxidation; corrosion inhibitor
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Yeungnam University, Gyeongbuk 38541, Korea
Interests: corrosion; plasma electrolytic oxidation; organic chemistry; theoretical chemistry (DF and MD simulations)
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Recently, considerable effort has been expended in the search for green anti-corrosion compounds that can protect metals against mechanical and chemical attacks. New ways of designing metallic materials with specific functionality have already highlighted the potential of eco-friendly corrosion inhibitors with respect to the variety of coating methods. Owing to its positive impact on the electrochemical and catalytic responses, nature-friendly compounds are considered a promising class of surface treatments, and their interfacial mechanisms are critical in exploring corrosion behavior, property changes and surface modification. The combination of experimental and theoretical approaches is crucial to obtain more accurate, complete and detailed information about the functionalization of organic compounds on metallic surfaces. This Special Issue is dedicated to providing comprehensive insight into the preparation and characterization of organic corrosion inhibitors, including surface/interface characterization and interfacial mechanism studies. Therefore, we would like to invite researchers worldwide to submit their original research articles, reviews, and communications covering the experimental and theoretical aspects of metal-organic materials.

Topics of interest include but are not limited to:

  • Surface treatment of metal;
  • Functionalization of metallic surfaces;
  • Electrochemical corrosion mechanisms;
  • Corrosion behavior;
  • Catalytic performance;
  • Computational contributions;
  • Green corrosion inhibitors;
  • Bio-related activity;
  • Light-related performance. 

Prof. Dr. Wail Al Zoubi
Prof. Dr. Chaouiki Abdelkarim
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. Metals 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

  • surface modification
  • corrosion inhibitor
  • surface characterization
  • metal
  • catalyst
  • eco-friendly approach
  • theoretical modeling

Published Papers (2 papers)

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Research

17 pages, 3458 KiB  
Article
Acid Treatments of Ti-Based Metallic Glasses for Improving Corrosion Resistance in Implant Applications
by Nora Fernández-Navas, Viktoriia Shtefan, Martin Hantusch and Annett Gebert
Metals 2024, 14(2), 241; https://doi.org/10.3390/met14020241 - 16 Feb 2024
Viewed by 688
Abstract
Ti-based bulk metallic glasses are promising materials for metallic bone implants, mainly due to their mechanical biofunctionality. A major drawback is their limited corrosion resistance, with high sensitivity to pitting. Thus, effective surface treatments for these alloys must be developed. This work investigates [...] Read more.
Ti-based bulk metallic glasses are promising materials for metallic bone implants, mainly due to their mechanical biofunctionality. A major drawback is their limited corrosion resistance, with high sensitivity to pitting. Thus, effective surface treatments for these alloys must be developed. This work investigates the electrochemical treatment feasibility of nitric acid (HNO3) solution for two bulk glass-forming alloys. The surface states obtained at different anodic potentials are characterized with electron microscopy and Auger electron spectroscopy. The corrosion behavior of the treated glassy alloys is analyzed via comparison to non-treated states in phosphate-buffered saline solution (PBS) at 37 °C. For the glassy Ti47Zr7.5Cu38Fe2.5Sn2Si1Ag2 alloy, the pre-treatment causes pseudo-dealloying, with a transformation from naturally passivated surfaces to Ti- and Zr-oxide nanoporous layers and Cu-species removal from the near-surface regions. This results in effective suppression of chloride-induced pitting in PBS. The glassy Ti40Zr10Cu34Pd14Sn2 alloy shows lower free corrosion activity in HNO3 and PBS due to Pd stabilizing its strong passivity. However, this alloy undergoes pitting under anodic conditions. Surface pre-treatment results in Cu depletion but causes enrichment of Pd species and non-homogeneous surface oxidation. Therefore, for this glassy alloy, pitting cannot be completely inhibited in PBS. Concluding, anodic treatments in HNO3 are more suitable for Pd-free glassy Ti-based alloys. Full article
(This article belongs to the Special Issue Recent Surface Treatments of Metals and Their Alloys)
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13 pages, 4920 KiB  
Article
Rapid Electrodeposition and Corrosion Behavior of Zn Coating from a Designed Deep Eutectic Solvent
by Jiayi Chen, Mengjun Zhu, Mingtao Gan, Xiuli Wang, Changdong Gu and Jiangping Tu
Metals 2023, 13(1), 172; https://doi.org/10.3390/met13010172 - 14 Jan 2023
Cited by 5 | Viewed by 1913
Abstract
This work aimed to develop a new type of deep eutectic solvent containing high concentrations of zinc ions as an electrolyte to improve the electrodeposition rate for zinc plating. Two typical deep eutectic solvent systems, choline chloride (ChCl)–urea and ChCl–ethylene glycol (EG), were [...] Read more.
This work aimed to develop a new type of deep eutectic solvent containing high concentrations of zinc ions as an electrolyte to improve the electrodeposition rate for zinc plating. Two typical deep eutectic solvent systems, choline chloride (ChCl)–urea and ChCl–ethylene glycol (EG), were combined to prepare a stable electrolyte at room temperature with a zinc ion concentration up to 2 M. Cyclic voltammetry experiments of the electrolyte at different temperatures were conducted. The effects of key electrodeposition parameters (bath temperature and current density) on the morphology, structure, and corrosion resistance of zinc coatings deposited on mild steel were investigated. It was found that the crystal orientation of the as-deposited zinc particle is related to the electrodeposition temperature and current density. The experimental results show that the zinc coating deposited at 60 °C and the current density of 4 mA·cm−2 exhibited the most compact and crack-free morphology, thus had the optimum corrosion resistance property. Full article
(This article belongs to the Special Issue Recent Surface Treatments of Metals and Their Alloys)
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