Material Surface Treatment Technology for a New Era

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: closed (20 June 2024) | Viewed by 8145

Special Issue Editors


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Department of Bioengineering, University of Tokyo, Tokyo, Japan
Interests: development of biocompatible biointerfaces based on bioinspired materials
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Guest Editor
Department of Materials Science and Engineering, National Institute of Technology (KOSEN), Suzuka College, Suzuka, Mie, Japan
Interests: biofilm engineering; environmental friendly surface engineering; creative engineering
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Special Issue Information

Dear Colleagues,

Environmental problems, energy problems, resource problems, and other new issues facing us in the 21st century are piling up. These problems are too numerous to list. Against this background of the times, the role of materials in supporting all of civilization is extremely important. Coating technology is the most effective way to add new functions to conventional material products in order to respond to new problems while taking advantage of their properties. This is because coating is a technology that makes it possible to impart new functions to materials in a composite manner while utilizing the properties of conventional bulk materials.

In this Special Issue, we invite contributions of scientific and engineering research on coating technology that is being undertaken to solve the various problems that are arising in this new era. We encourage you to contribute to the construction of a new, safe, and secure society through this Special Issue. We look forward to receiving your contributions.

Prof. Dr. Madoka Takai
Prof. Dr. Hideyuki Kanematsu
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.

Published Papers (5 papers)

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Research

12 pages, 3999 KiB  
Article
Establishment of a Uniaxial Tensile Fracture Inversion Model Based on Fracture Surface Reconstruction (FRASTA)
by Haidong Jia, Zhenghao Jiao, Lianshuang Dai, Yongbin Que, Qingshan Feng, Ming Yang and Yuguang Cao
Coatings 2024, 14(4), 489; https://doi.org/10.3390/coatings14040489 - 16 Apr 2024
Viewed by 710
Abstract
In order to infer the load on the component after the experimental uniaxial tensile fracture inversion model based on cross-sectional reconstruction, (FRASTA) was proposed to infer the load on the tested components. This model can combine the fracture surface characteristics of experimental specimens [...] Read more.
In order to infer the load on the component after the experimental uniaxial tensile fracture inversion model based on cross-sectional reconstruction, (FRASTA) was proposed to infer the load on the tested components. This model can combine the fracture surface characteristics of experimental specimens to reconstruct the fracture surface morphology and invert the fracture process of uniaxial tensile specimens. Based on the assumption of rectangular rod fracture, a quantitative inversion model for a unidirectional stress load based on dissipative plasticity characteristics was established, and the inversion results based on cross-sectional reconstruction were compared with the experimental measurement results. The results indicate that when only considering the unidirectional stress state, the two have a high degree of consistency, with a maximum measurement error of 5.3%, fully verifying the accuracy of the fracture surface reconstruction and inversion model. Full article
(This article belongs to the Special Issue Material Surface Treatment Technology for a New Era)
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14 pages, 56059 KiB  
Article
Preliminary Study on Electrodeposition of Copper Platings and Codeposition of Carbon Nanotubes from Organic Solvent
by Jae-Hyeok Park, Yusei Fujita, Takeshi Hagio, Vanpaseuth Phouthavong, Yuki Kamimoto, Takeshi Bessho and Ryoichi Ichino
Coatings 2023, 13(4), 802; https://doi.org/10.3390/coatings13040802 - 20 Apr 2023
Cited by 1 | Viewed by 1979
Abstract
Metal/carbon composite plating is an effective strategy for improving and adding properties to metal plating by incorporating carbon materials into the metal matrices. Copper (Cu) is widely applied, particularly in the areas of heat management and electronic packaging owing to its high thermal [...] Read more.
Metal/carbon composite plating is an effective strategy for improving and adding properties to metal plating by incorporating carbon materials into the metal matrices. Copper (Cu) is widely applied, particularly in the areas of heat management and electronic packaging owing to its high thermal and electrical conductivities, which can be further improved together with improvements in mechanical properties by compositing it with carbon nanotubes (CNTs). However, because hydrophobic CNTs are hardly dispersible in aqueous solutions, additional intense acid treatment or the addition of dispersants is required for their dispersion. Moreover, previous studies have reported that these methods suffer from deterioration of composite material performance through the destruction of the CNT surface or the inclusion of dispersants into the plating. Therefore, in this study, the electrodeposition of a Cu/CNT composite in a non-aqueous solvent that can disperse CNTs without any additional treatment is investigated. The experimental results show that it is possible to deposit Cu from a N-methyl-2-pyrrolidone containing copper iodide and potassium iodide. Furthermore, Cu/CNT composite platings containing CNTs up to 0.12 mass% were prepared by constant current electrolysis, and applying pulse electrolysis can increase the CNTs content up to 0.22 mass%. Full article
(This article belongs to the Special Issue Material Surface Treatment Technology for a New Era)
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15 pages, 5804 KiB  
Article
Optimization of Electropolishing Process Using Taguchi Robust Design for UNS N08367 in a Mixed Solution of Sulfuric Acid and Phosphoric Acid
by Hyun-Kyu Hwang and Seong-Jong Kim
Coatings 2023, 13(2), 312; https://doi.org/10.3390/coatings13020312 - 30 Jan 2023
Cited by 3 | Viewed by 1710
Abstract
The purpose of this investigation was to determine the optimal conditions for UNS N08367 electropolishing using the Taguchi method. The investigated factors were the electrolyte composition ratio, applied current density, and electrolyte temperature. Each factor was tested at three levels. Electropolishing was optimized [...] Read more.
The purpose of this investigation was to determine the optimal conditions for UNS N08367 electropolishing using the Taguchi method. The investigated factors were the electrolyte composition ratio, applied current density, and electrolyte temperature. Each factor was tested at three levels. Electropolishing was optimized using analysis of variance (ANOVA), signal-to-noise ratio (the smaller the better the characteristics), and surface analysis. The ANOVA results showed that among the three factors, only the electrolyte composition ratio was effective in surface planarization. The optimal conditions for electropolishing determined according to the signal-to-noise ratio were a sulfuric acid-to-phosphoric acid ratio of 2:8, a current density of 400 mA/cm2, and an electrolyte temperature of 75 °C. Full article
(This article belongs to the Special Issue Material Surface Treatment Technology for a New Era)
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11 pages, 7665 KiB  
Article
Influence of Heat Treatment on Corrosion Resistance of Sn/Mg Films Formed by PVD Method on Hot-Dip Galvanized Steel
by Sung-Hwa Hwang, Seung-Hyo Lee and Myeong-Hoon Lee
Coatings 2023, 13(1), 196; https://doi.org/10.3390/coatings13010196 - 15 Jan 2023
Cited by 2 | Viewed by 1880
Abstract
Double layers composed of Sn and Mg, each 0.8 μm thick, were fabricated on a hot-dip galvanized steel (8.4 μm) sheet using DC magnetron sputtering and post-annealing processes. With an increase in temperature, the surface morphologies were agglomerated with each other. Additionally, Sn/Mg [...] Read more.
Double layers composed of Sn and Mg, each 0.8 μm thick, were fabricated on a hot-dip galvanized steel (8.4 μm) sheet using DC magnetron sputtering and post-annealing processes. With an increase in temperature, the surface morphologies were agglomerated with each other. Additionally, Sn/Mg mixture sites, including an intermetallic compound of Mg2Sn, were formed at 190 °C and locally clustered at 220 °C. In the salt-spray test, the corrosion resistance of the Sn/Mg film prepared at 190 °C was 960 h, which is longer than that at non-heat for 528 h or 220 °C for 480 h. In the polarization test, the Sn/Mg film formed at 190 °C displayed a lower corrosion current density of 1.07 μA/cm2 and potential of 1.62 V/SSCE than those at non-heat or 220 °C. Full article
(This article belongs to the Special Issue Material Surface Treatment Technology for a New Era)
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10 pages, 3881 KiB  
Article
Tribological Behaviors of Ni-P Coatings on PEO-Treated AA1050 Alloy
by Juseok Kim, Duyoung Kwon, Hien Van Pham, Sungmo Moon and Heon-Cheol Shin
Coatings 2023, 13(1), 160; https://doi.org/10.3390/coatings13010160 - 11 Jan 2023
Cited by 3 | Viewed by 1043
Abstract
Tribological behaviors of the plasma electrolytic oxidation (PEO)-treated Al1050 alloy surface without and with Ni-P deposits was examined by analyzing of the width of abrasion groove, weight loss, friction coefficient and composition at the wear track after a 100 m ball-on-disc test. The [...] Read more.
Tribological behaviors of the plasma electrolytic oxidation (PEO)-treated Al1050 alloy surface without and with Ni-P deposits was examined by analyzing of the width of abrasion groove, weight loss, friction coefficient and composition at the wear track after a 100 m ball-on-disc test. The surface color, surface and cross-sectional morphologies and surface roughness (Ra) were also investigated to explain different wear behaviors of PEO films without and with Ni-P deposit. After the 100 m ball-on-disc test, a circular abrasion groove with relatively large width and shallow depth was formed when Ni-P particles cover the top surface of PEO films, but a relatively narrow and deep circular abrasion groove was formed on the Ni-P layer-covered PEO film surface. Iron was only detected at the wear track of 5 and 10 μm PEO films without Ni-P deposit, suggesting that the steel ball is worn out by the PEO films but not by the Ni-P deposit. An extremely large amount of weight loss was obtained from the Ni-P layer-covered PEO film surface, which could be related to the high density and low hardness of the Ni-P layer. Full article
(This article belongs to the Special Issue Material Surface Treatment Technology for a New Era)
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