Recent Advances in Metallic Biomaterials

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

Deadline for manuscript submissions: 10 January 2025 | Viewed by 1317

Special Issue Editors


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Guest Editor
Department of Mechanical Engineering and Materials, Universitat Politècnica de València, Valencia, Spain
Interests: titanium alloys; powder metallurgy; biomaterials; tribocorrosion; surface modification; additive manufacturing
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Guest Editor
Department of Materials Engineering, Universidade Federal de São Carlos, São Carlos, Brazil
Interests: titanium alloys; powder metallurgy; biomaterials; porous materials, coatings; additive manufacturing

Special Issue Information

Dear Colleagues,

The increase in life expectancy in the world population increasingly requires structural alloys that allow bone replacement or repair and likewise improve dental implantology. For this reason, the study and development of new and better alloys is essential, as well as the corresponding surface modification that allows better osseointegration. At the same time, studies of surface functionalization that allow better bioactivity will minimize the costs associated with possible revisions of prostheses and implants. In addition, the additive manufacturing of personalized prostheses, especially in maxillofacial surgery, can allow an improvement in the well-being of the patient, opening up new possibilities of therapeutic application.

The improvement in the integral behaviour of biodegradable alloys or compounds between alloys will allow combining their properties in the medium and long term, improving the duration and properties of the devices.

In this Special Issue, we welcome articles that focus on the development of new alloys, as well as their surface modification through the generation of specific textures or improved metallic and ceramic coatings. The study and characterization of its mechanical properties, related to its microstructure, its resistance to corrosion and, above all, its biocompatibility.

Prof. Dr. Vicente Amigó-Borrás
Dr. Mariana Correa Rossi
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

  • titanium alloys
  • magnesium alloys
  • surface modification
  • surface functionalization
  • biocompatibility
  • corrosion behaviour
  • structural characterization
  • processing
  • biomedical metal composites

Published Papers (1 paper)

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Research

16 pages, 23806 KiB  
Article
Improved Tribological Performance of Nitride-Reinforced Biocompatible Titanium–Niobium–Zirconium–Tantalum (TNZT) Alloys for Advanced Orthopedic Applications
by Satyavan Digole, Jay Desai, Calvin Christopher, Smriti Bohara, Chathuranga Sandamal Witharamage, Chandra Kothapalli, Rajeev Kumar Gupta and Tushar Borkar
Metals 2024, 14(1), 122; https://doi.org/10.3390/met14010122 - 20 Jan 2024
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Abstract
β-titanium (β-Ti) alloys are used in various biomedical applications, especially for orthopedic implants, due to their superior biocompatibility, excellent corrosion resistance, and enhanced mechanical properties. However, the inferior tribological properties of β-Ti alloys lead to fretting wear and a strong tendency to seize, [...] Read more.
β-titanium (β-Ti) alloys are used in various biomedical applications, especially for orthopedic implants, due to their superior biocompatibility, excellent corrosion resistance, and enhanced mechanical properties. However, the inferior tribological properties of β-Ti alloys lead to fretting wear and a strong tendency to seize, which is a major concern in orthopedic applications involving continuous friction. This work aims to address this issue by incorporating biocompatible nitrides in Ti-Nb-Zr-Ta (TNZT) β-Ti alloys. TNZT composites comprising 2 wt.% of biocompatible nitrides (TiN, NbN, ZrN, and TaN) were prepared using high-energy ball milling followed by spark plasma sintering. All the nitrides improved the hardness and wear resistance of TNZT alloys and showed excellent biocompatibility. TNZT-2 wt.% TiN showed the average highest hardness of 311.8 HV and the lowest coefficient of friction of 0.659, suggesting the highest efficiency of TiN in improving the tribological performance of TNZT alloys. The underlying mechanisms behind the superior performance of nitride-reinforced TNZT composites are discussed in detail. The effect of TiN concentration was also studied by preparing TNZT composites with 5 and 10 wt.% TiN, which showcased a higher hardness of 388.5 HV and 444.3 HV, respectively. This work will aid in producing superior β-Ti alloys for advanced orthopedic applications. Full article
(This article belongs to the Special Issue Recent Advances in Metallic Biomaterials)
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