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Metals
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Protection Technology of Metallic Materials
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Protection Technology of Metallic Materials

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Extractive Metallurgy".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 4742

Special Issue Editor

Prof. Dr. Xiaoqiang Fan

E-Mail Website
Guest Editor
Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
Interests: lubricating materials; corrosion protection and engineering applications

Special Issue Information

Dear Colleagues,

We hope that this email finds you well. Your research on Protection Technology for Metallic Materials is very impressive. As a Guest Editor of the Special Issue “Protection Technology for Metallic Materials” in the journal Metals, it is my great pleasure to invite you and your team members to submit quality papers to this Special Issue.

Corrosion is a ubiquitous and detrimental problem for the marine industry, automobile, rail traffic, etc. Especially, metals and alloys inevitably suffer from the corroding effects of corrosive media in the environment, thereby causing economic losses, potential security hazards and environmental pollution. To date, various strategies, such as cathodic protection, superhydrophobic surfaces and organic coatings, have been introduced to improve anticorrosion performance.

I would be very honored if you could accept this invitation. I believe that your solid expertise and extensive experience in “Protection Technology for Metallic Materials” together with our rigorous editorial policies can help to make this Special Issue successful with great achievements.

Many thanks and best regards,

Prof. Dr. Xiaoqiang Fan
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. 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

  • metal
  • corrosion protection
  • wear resistance
  • surface engineering
  • tribology
  • fatigue
  • fretting

Published Papers (3 papers)

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Research

11 pages, 5409 KiB  
Article
Mass-Produced Cu Nanoparticles as Lubricant Additives to Enhance the Tribological Properties of DLC Coatings
by Nan Li, Mingchang Wang and Zhiguo Wu
Metals 2022, 12(8), 1350; https://doi.org/10.3390/met12081350 - 13 Aug 2022
Cited by 5 | Viewed by 1489
Abstract
In this paper, Nano copper (Cu) particles with a core-shell structure and good spherical shape were prepared by an innovative method called mass-produced nanoparticles (MPNP). The prepared Cu nanoparticles have good dispersibility and are agglomeration-free in Pao oil. In particular, the effects of [...] Read more.
In this paper, Nano copper (Cu) particles with a core-shell structure and good spherical shape were prepared by an innovative method called mass-produced nanoparticles (MPNP). The prepared Cu nanoparticles have good dispersibility and are agglomeration-free in Pao oil. In particular, the effects of nano-Cu particles with different mass fractions on the tribological properties of the steel against diamond-like carbon (DLC) coating were studied systematically. The results showed that the nano-Cu particles with the mass fraction of 0.1 wt.% and the steel/DLC friction pairs had good synergistic lubrication. The friction mechanism of the metal nano-particles and carbon-based coatings mainly depends on the physical effects such as nano-bearing and nano-filling of the nano-particles, which has little correlation with the shear film formation of the metal nano-particles. Therein, the surface polish behaviors of the metal nano-particles and carbon-based coatings are the key to bringing the nano-bearing mechanism of nano-particles into full play. Therefore, the Cu nanoparticles prepared by MPNP show excellent tribological performance and possess broad prospects in the fields of lubricant additives. Full article
(This article belongs to the Special Issue Protection Technology of Metallic Materials)
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9 pages, 48726 KiB  
Article
Effect of Negative Bias Voltage on Tribological Properties under High Relative Humidity Environment and Corrosion Resistance of Boron Carbide Coatings
by Ping Zhong, Xueqian Cao and Lunlin Shang
Metals 2021, 11(10), 1518; https://doi.org/10.3390/met11101518 - 24 Sep 2021
Cited by 3 | Viewed by 1108
Abstract
Humid air is a very important service environment, in which metal friction parts should be enhanced to offer excellent corrosion resistance and wear resistance. The B4C coating is an excellent candidate material to enhance the corrosion resistance and tribological behaviors. The [...] Read more.
Humid air is a very important service environment, in which metal friction parts should be enhanced to offer excellent corrosion resistance and wear resistance. The B4C coating is an excellent candidate material to enhance the corrosion resistance and tribological behaviors. The purpose is to investigate the effect of negative bias voltages on the tribological properties of B4C coatings under a high relative humidity environment. Amorphous B4C coatings were successfully prepared by closed field unbalanced magnetron sputtering technology and its microstructure, hardness, elastic modulus, adhesive force and tribological properties were systematically studied. Results demonstrate that the B4C coatings deposited at each negative bias voltage have a columnar structure and the surface roughness remained unchanged (about 1.0 nm), while the thickness, hardness, elastic modulus and adhesion force increase first and then decrease with the negative bias voltage increasing. Among them, the B4C (−50 V) coating showed the best mechanical properties. It should be noted that the B4C (−50 V) coating with an excellent corrosion resistance also exhibits the lowest friction coefficient (~0.15) and wear resistance (7.2 × 10−7 mm3·N−1·m−1) under humid air (85% RH). This is mainly due to the tribochemical reaction of B4C during a sliding process to produce boric acid at the sliding interface. B4C coatings can provide an excellent corrosion resistance and high wear resistance due to their high chemical stability and high hardness. Full article
(This article belongs to the Special Issue Protection Technology of Metallic Materials)
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10 pages, 3091 KiB  
Article
Towards Understanding Relationships between Tension Property and Twinning Boundaries in Magnesium Alloy
by Jianhui Bai, Pengfei Yang, Zhiyuan Yang, Qi Sun and Li Tan
Metals 2021, 11(5), 745; https://doi.org/10.3390/met11050745 - 30 Apr 2021
Cited by 1 | Viewed by 1589
Abstract
Although pre-induced {10 12¯} twins could strengthen magnesium and its alloys, the origin of such a strengthening phenomenon remains questionable. This is because twins can simultaneously change the size of grains and the texture features of the initial material. [...] Read more.
Although pre-induced {10 12¯} twins could strengthen magnesium and its alloys, the origin of such a strengthening phenomenon remains questionable. This is because twins can simultaneously change the size of grains and the texture features of the initial material. In the present work, the effect of pre-induced {101¯2} twins on the tension property of an extruded magnesium alloy has been investigated through a combination of electron backscatter diffraction, transmission electron microscope, and mechanical tests. Samples with and without {101¯2} twinning boundaries, but possessing an almost identical texture characteristic, were prepared by pre-compression perpendicular to the extrusion direction. Subsequently, these pre-strained samples were tensioned along the extrusion direction. The results indicate that the pre-induced {101¯2} twinning boundaries can indeed enhance the tension strength of magnesium alloys, but only slightly. The effect is closely associated with the amount of pre-strain. Correspondingly, the possible mechanisms behind such phenomena are given and discussed. Full article
(This article belongs to the Special Issue Protection Technology of Metallic Materials)
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