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Metals
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Correlation between Composition, Microstructure and Properties of Advanced Titanium Alloys
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Correlation between Composition, Microstructure and Properties of Advanced Titanium Alloys

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

Deadline for manuscript submissions: closed (31 August 2023) | Viewed by 4330

Special Issue Editor

Prof. Dr. Shunxing Liang

E-Mail Website
Guest Editor
College of Materials Science and Engineering, Hebei University of Engineering, Handan 056038, China
Interests: Ti alloys; strengthening and toughening; surface modification; biomaterials

Special Issue Information

Dear Colleagues,

Titanium and titanium alloys have excellent properties, such as their low density, high strength, high specific strength, excellent corrosion resistance, good low-temperature performance, satisfactory biocompatibility, and so on. They are widely used or can be used in the fields of the aerospace, automobile, shipbuilding, chemical, and medicine industries. It is well-known that the properties of metallic materials depend on their composition, microstructure, and treatment process. Alloying elements of Ti alloys can be classified as alpha stabilizers, beta stabilizers, and neutrals. The major microstructures of Ti alloys contain acicular, lamella, equiaxed, martensite, intermetallics, and bimodal microstructures. Commonly used treatments include heat treatment, deformation, surface modification, etc. By adding various alloying elements and/or performing different treatments, the microstructure and properties of titanium alloys will change greatly. Although many publications have been published about the relationships between the composition, process parameters, microstructure, and properties of titanium and its alloys, it is still very necessary to systematically investigate these topics to enhance their properties as the development of science and technologies progress. It is of great theoretical significance and practical value for the design of high-performance titanium alloys and their long-term safe service to deepen the understanding of the correlations between the composition, process parameters, microstructure, and properties of titanium alloys.

This Special Issue welcomes original articles and reviews about nearly all aspects of titanium alloys including, but not limited to, composition design, processing, microstructure evolution, property improvement, and their correlations.

Prof. Dr. Shunxing Liang
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

  • Ti alloys
  • phase transition
  • microstructure
  • heat treatment
  • deformation
  • surface modification
  • strength and ductility
  • wearability
  • corrosion resistance
  • biocompatibility

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Published Papers (2 papers)

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Research

11 pages, 3738 KiB  
Article
Relationship between the Composition and Elastic Modulus of TiZrTa Alloys for Implant Materials
by Jinzhu Zhao, Kaiyang Liu, Meining Ding, Lixia Yin and Shunxing Liang
Metals 2022, 12(10), 1582; https://doi.org/10.3390/met12101582 - 23 Sep 2022
Cited by 4 | Viewed by 1872
Abstract
The elastic modulus is a key factor influencing the applications of implant materials because of the weakening effect of stress shielding. Ti and its alloys are good potential implant materials thanks to their low elastic modulus and fine biocompatibility. The addition of alloying [...] Read more.
The elastic modulus is a key factor influencing the applications of implant materials because of the weakening effect of stress shielding. Ti and its alloys are good potential implant materials thanks to their low elastic modulus and fine biocompatibility. The addition of alloying elements into pure Ti and Ti alloys is the basic way to further decrease the elastic modulus whilst simultaneously enhancing strength, wearability, and corrosion resistance, for example. Finding the relationship between the composition and elastic modulus can greatly promote the development of Ti alloys with a low modulus for implant applications. In the current work, we investigated the elastic modulus of TiZrTa alloys with scores of compositions by using the high-throughput diffusion couple method, nanoindentation, and an electron probe micro-analysis. The relationship between the elastic modulus and the composition of the TiZrTa alloys was obtained. The average valence electron theory was employed to make clear the variation between the elastic modulus and the composition. Finally, the composition range formulae of TiZrTa alloys likely to have a low modulus were established by combining our data and previous results. These findings are helpful in developing new Ti alloys with a low modulus and also help to further understand the alloying theory. Full article
(This article belongs to the Special Issue Correlation between Composition, Microstructure and Properties of Advanced Titanium Alloys)
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13 pages, 5391 KiB  
Article
Surface Microstructure and Performance of Anodized TZ30 Alloy in SBF Solution
by Kaiyang Liu, Yixin Zhou, Lixia Yin, Yindong Shi, Guangwei Huang, Xiaoyan Liu, Liyun Zheng, Zhenguo Xing, Xiliang Zhang and Shunxing Liang
Metals 2022, 12(5), 719; https://doi.org/10.3390/met12050719 - 23 Apr 2022
Cited by 3 | Viewed by 1808
Abstract
Anodization is performed on the Ti-30Zr-5Al-3V (TZ30) alloy to improve its surface performance. X-ray diffractometer (XRD), scanning electron microscopy (SEM), and Olympus microscope are used to determine the phase constitution, morphology, and thickness of the anodization film (AOF). Tribological tests and electrochemical corrosion [...] Read more.
Anodization is performed on the Ti-30Zr-5Al-3V (TZ30) alloy to improve its surface performance. X-ray diffractometer (XRD), scanning electron microscopy (SEM), and Olympus microscope are used to determine the phase constitution, morphology, and thickness of the anodization film (AOF). Tribological tests and electrochemical corrosion experiments are carried out to measure, respectively, the wear behavior and corrosion resistance of AOFs in simulated body fluid (SBF) solution. The microstructure characteristic of the AOF anodized at low voltage (20 V) is composed of compact and loose regions. As the applied voltage increases to 60 V, the compact regions transform progressively into loose regions, and then grow into nanotube regions. Besides, an increase in thickness of the AOF from 8.6 ± 4.61 μm to 20.7 ± 2.18 μm, and a gradual increase in surface microhardness from 364.6 ± 14.4 HV to 818.4 ± 19.3 HV, are also exhibited as the applied voltage increases from 20 V to 60 V. Specimens anodized at 40 V and 60 V have a low friction coefficient (~0.15) and wear rate (~2.2 mg/N/m) in the SBF solution. The enhanced wearability originates from the high hardness and various wear mechanisms. Potentiodynamic polarization curves suggest that the corrosion resistance in the SBF solution of all anodized specimens is greatly improved, thanks to the protection from the anodized TiO2 film. Full article
(This article belongs to the Special Issue Correlation between Composition, Microstructure and Properties of Advanced Titanium Alloys)
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