Special Issue "Advanced Surface Treatment Technologies for Metallic Alloys"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Manufacturing Processes and Systems".

Deadline for manuscript submissions: 31 October 2020.

Special Issue Editor

Prof. Dr. Petricǎ Vizureanu
Website
Guest Editor
Department of Materials Science, Gheorghe Asachi Technical University of Iasi, Iasi, Romania
Interests: material processing engineering; heat treatment; corrosion; hard coating; biomedical and aeronautical application
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Special Issue Information

Dear Colleagues,

We would like to invite you to submit your work to this Special Issue on “Advanced Surface Treatment Technologies for Metallic Alloys”. The scope of this Special Issue includes advanced surface treatment solutions applied to metallic alloys, which are cost-effective, energy-efficient, and safe for operators and the environment. The aim of this Special Issue is to present the latest experimental and theoretical achievements in the field, through a combination of original research papers and review articles from leading research groups around the world. Scientific and technological progress has been achieved on this topic by universities and research institutes worldwide. Furthermore, advanced surface treatment is very well known by scientists, and can improve the properties of any kind of metallic alloys.

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

  • Mechanical coating/alloying/treatment of the metallic alloys;
  • Heat/thermo/chemical treatment of the metallic alloys;
  • Nonconventional treatment applied to metallic alloys, such as: thermo/mechanical coating, including electrochemical machining, abrasive flow machining, shot blasting, shot peening, turbo-abrasive machining, centrifugal barreling finish, centrifugal isotropic finishing, and so on;
  • Metallic biomaterials coatings applied, but not limited to, Ti-based alloys, CoCr alloys, and stainless steels.

Prof. Dr. Petricǎ Vizureanu
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 papers will be 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. Materials is an international peer-reviewed open access semimonthly 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 2000 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

  • Thermical surface treatment
  • Thermochemical surface treatment
  • Mechanical surface treatment
  • Machining
  • Blasting
  • Biometallic alloys
  • Coating
  • Thermical surface treatment.

Published Papers (4 papers)

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Research

Open AccessArticle
Effect of Magnetic Head Shape on Processing of Titanium Alloy Wire by Magnetic Abrasive Finishing
Materials 2020, 13(6), 1401; https://doi.org/10.3390/ma13061401 - 19 Mar 2020
Abstract
Titanium alloy wire is characterized by high specific strength, good corrosion resistance, high-temperature resistance and other excellent comprehensive performance. It has been widely used not only in aerospace, shipbuilding and other high-tech fields, but also increasingly in medical equipment, food safety and other [...] Read more.
Titanium alloy wire is characterized by high specific strength, good corrosion resistance, high-temperature resistance and other excellent comprehensive performance. It has been widely used not only in aerospace, shipbuilding and other high-tech fields, but also increasingly in medical equipment, food safety and other fields. Because titanium alloy wire is relatively difficult to process, it has a large deformation resistance, good elasticity, high flexion ratio and more serious rebound. During the processing, adhesion problems may occur, thus reducing the surface quality. The magnetic abrasive finishing (MAF) has good flexible machining characteristics. In this study, the rotating magnetic field was loaded on the titanium alloy wire, and the magnetic abrasive was absorbed by the magnetic field force to form a magnetic abrasive brush, so as to realize the precision processing of the titanium alloy wire. Under the same processing time, when the angle of the magnetic head was 37°, the surface roughness of titanium alloy wire was reduced to 0.28 μm by MAF, which improved the processing quality and efficiency of the titanium alloy wire. Full article
(This article belongs to the Special Issue Advanced Surface Treatment Technologies for Metallic Alloys)
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Open AccessArticle
Investigation into the Effect of Thermal Treatment on the Obtaining of Magnetic Phases: Fe5Y, Fe23B6, Y2Fe14B and αFe within the Amorphous Matrix of Rapidly-Quenched Fe61+xCo10−xW1Y8B20 Alloys (Where x = 0, 1 or 2)
Materials 2020, 13(4), 835; https://doi.org/10.3390/ma13040835 - 12 Feb 2020
Cited by 1
Abstract
The paper presents the results of research on the structure and magnetic properties of Fe61+xCo10−xW1Y8B20 alloys (where x = 0, 1 or 2). The alloys were produced using two production methods with [...] Read more.
The paper presents the results of research on the structure and magnetic properties of Fe61+xCo10−xW1Y8B20 alloys (where x = 0, 1 or 2). The alloys were produced using two production methods with similar cooling rates: Injection casting and suction casting. The alloy samples produced were subjected to isothermal annealing at 940 K for 10 min. The structure of the materials was examined using X-ray diffraction. Isothermal annealing has led to the formation of various crystallization products depending on the chemical composition of the alloy and the structure of the alloy in a solidified state. In two cases, the product of crystallization was the hard magnetic phase Y2Fe14B. However, the mechanism of this phase formation was different in both cases. The magnetic properties of alloys were tested using a vibrating sample magnetometer and a Faraday magnetic balance. It is found that the grain crystallite size of the crystalline phases have a decisive influence on the value of the coercive field (especially in the case of hard magnetic phases). It has been shown that privileged areas can already be created during the production process. Their presence determines the crystallization process. Full article
(This article belongs to the Special Issue Advanced Surface Treatment Technologies for Metallic Alloys)
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Open AccessArticle
Effect of the Application of Different Surface Treatment Methods on the Strength of Titanium Alloy Sheet Adhesive Lap Joints
Materials 2019, 12(24), 4173; https://doi.org/10.3390/ma12244173 - 12 Dec 2019
Abstract
This study investigated the effect of the different surface treatment methods on the strength of Ti6Al4V titanium alloy sheet adhesive joints. The following surface treatment methods were used: alkaline degreasing, anodizing, vibratory shot peening, and anodizing with vibrational shot peening. The following tests/measurements [...] Read more.
This study investigated the effect of the different surface treatment methods on the strength of Ti6Al4V titanium alloy sheet adhesive joints. The following surface treatment methods were used: alkaline degreasing, anodizing, vibratory shot peening, and anodizing with vibrational shot peening. The following tests/measurements were carried out during the experiment: surface roughness measurements; microhardness measurements (conducted by the Vickers hardness test method); and strength tests of single-lap adhesive joints fabricated with the use of two epoxy adhesives, rigid and flexible, both based on epoxy resin Epidian 5. It has been found that the application of anodizing followed by vibratory shot peening leads to increased strength of adhesive joints, irrespective of the type of applied epoxy adhesive. Full article
(This article belongs to the Special Issue Advanced Surface Treatment Technologies for Metallic Alloys)
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Open AccessArticle
Promoted Anodizing Reaction and Enhanced Coating Performance of Al–11Si Alloy: The Role of an Equal-Channel-Angular-Pressed Substrate
Materials 2019, 12(19), 3255; https://doi.org/10.3390/ma12193255 - 05 Oct 2019
Abstract
In this paper, the effect of the equal-channel-angular-pressed (ECAPed) substrate on the coating formation and anticorrosion performance of the anodized Al–11Si alloy was systematically investigated. The ECAP process dramatically refines both Al and Si phases of the alloy. The parallel anodizing circuit is [...] Read more.
In this paper, the effect of the equal-channel-angular-pressed (ECAPed) substrate on the coating formation and anticorrosion performance of the anodized Al–11Si alloy was systematically investigated. The ECAP process dramatically refines both Al and Si phases of the alloy. The parallel anodizing circuit is designed to enable a comparative study of anodizing process between the cast and the ECAPed alloys by tracking their respective anodizing current quota. The optimum coatings of both alloys were obtained after anodization for 30 min. The ECAPed alloy attained a thicker, more compact, and more uniform coating. Energetic crystal defects in the fine Al grains of the ECAPed substrate promote the anodizing reaction and lead to the thicker coating. Fragmented and uniformly distributed fine Si particles in the ECAPed alloy effectively suppress the coating cracks, enhancing the compactness of the coating. Overall, the ECAP-coated sample exhibits the best anticorrosion performance, which is evidenced by the concurrently enhanced prevention of coating and improved corrosion resistance of the substrate. Full article
(This article belongs to the Special Issue Advanced Surface Treatment Technologies for Metallic Alloys)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

The enhancement of osseointegration of new TMZT systems by electrochemical deposition of HA

Petrică Vizureanu1*, Andrei Victor Sandu1,2, Madalina Simona Baltatu1, , Gabriela Ciobanu3

1   “Gheorghe Asachi” Technical University of Iasi, Faculty of Materials Science and Engineering, 41 “D. Mangeron” Street, 700050, Iasi, Romania;  [email protected](P.V.); [email protected] (S.A.V); [email protected] (M.S.B.); [email protected] (G.C.).

2   Romanian Inventors Forum, Str. Sf.P.Movila 3, Iasi, 700089, Romania

3    Gheorghe Asachi Technical University of Iasi, Faculty of Chemical Engineering and Environmental Protection,  “D. Mangeron” Street, 700050, Iasi, Romania

 

*   Correspondence: [email protected] (P.V.) or [email protected] (S.A.V.)

Abstract: Biometallic alloys must be tolerated by the body for a long time (decades) and therefore must meet the functional requirements according to the medical applications in which they are to be used. Titanium based alloys are used because of their acceptance by the human tissues they interact with and the ability to perform the functional role for which they were implanted. One of the most important properties is the osseointegration which can be enhanced with various kind of treatments or deposition. The present article is a preliminary study focused on the enhancement of osseointegration of new TiMoZrTa system (TMZT) by electrochemical deposition of HA. According to previous studies the osseointegration can be enhanced by deposing HA on the biometallic alloys, being facilitated the human bone growth on the calcium phosphate structure.

Keywords: titanium alloy; osseointegration; TiMoZrTa system; electrochemical deposition.

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