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Metals
Special Issues
Lightweight Metal Alloys & Metal Matrix Composites
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Lightweight Metal Alloys & Metal Matrix Composites

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Matrix Composites".

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 2873

Special Issue Editors

Dr. R. Arvind Singh

E-Mail Website
Guest Editor
School of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou 325035, China
Interests: surface engineering; tribology; corrosion; metal and alloys; composites; coatings; biomimetic approaches
Dr. Jayalakshmi Subramanian

E-Mail Website
Guest Editor
School of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou 325035, China
Interests: light weight alloys; metal matrix composites; advanced materials development; non-conventional processing techniques; structure-property correlation; material behaviours at high temperatures

Special Issue Information

Dear Colleagues,

The advancement of technologies is supported by new materials and/or functional modification of existing materials. Light metals such as aluminium (Al) and magnesium (Mg) have immense potential to cater for the current and emerging technologies, such as in automotive, aviation, defense, biomedical, sporting equipment, consumer electronics, etc. Al and Mg are attractive material candidates due in part to their light weight, energy efficiency and environmental friendliness.

With Al and Mg, new alloys/composites are being developed to effectively match the demands in industries, by (i) materials design, (ii) new manufacturing technologies such as additive manufacturing, spark plasma sintering, microwave sintering, etc., and (iii) microstructural manipulation via heat treatments, deformation processing, etc.

This Special Issue on ‘Light-Weight Metal Alloys and Metal Matrix Composites’, invites technical articles and reviews on the advancement of light-weight materials and their performance. The issue aims to present a collection of state-of-the-art research works to the scientific community. Suggested topics include, but are not limited to, (i) materials design, (ii) materials processing, (iii) characterization and properties evaluation such as physical, mechanical and surface properties and (iv) processing–microstructure–properties correlation. The issue considers both experimental and theoretical research works.

Dr. R. Arvind Singh
Dr. Jayalakshmi Subramanian
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

  • materials design
  • aluminium and magnesium alloys development
  • light metal micro/nano metal matrix composites
  • conventional and non-conventional processing techniques (solid/liquid-state processes)
  • additive manufacturing
  • microstructural evolution
  • advanced characterization
  • room temperature and high temperature mechanical properties
  • wear and friction
  • corrosion

Published Papers (2 papers)

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Research

19 pages, 4858 KiB  
Article
Influence of Layer-Thickness Proportions and Their Strength and Elastic Properties on Stress Redistribution during Three-Point Bending of TiB/Ti-Based Two-Layer Ceramics Composites
by Kirill Khvostunkov, Pavel Bazhin, Qing-Qing Ni, Arina Bazhina, Andrey Chizhikov and Alexander Konstantinov
Metals 2023, 13(8), 1480; https://doi.org/10.3390/met13081480 - 17 Aug 2023
Cited by 1 | Viewed by 1157
Abstract
A mathematical model was developed to determine the order of failure of layers in a two-layer ceramics composite and to determine the conditions for achieving the maximum limit load under three-point loading. The model was set in the space of three “bilayer parameters”: [...] Read more.
A mathematical model was developed to determine the order of failure of layers in a two-layer ceramics composite and to determine the conditions for achieving the maximum limit load under three-point loading. The model was set in the space of three “bilayer parameters”: the ratio of the thickness of the lower layer to the whole thickness of the beam, the ratio of Young’s moduli of the lower layer to the upper layer, and the ratio of flexural strengths of the materials of the lower layer to the upper layer. The adequacy of the model obtained was confirmed by experimental results on the three-point bending of the experimental specimens. The experimental samples were two-layer composites consisting of a cermet layer TiB/Ti and a layer of α-Ti. The samples were obtained by free self-propagating high-temperature synthesis (SHS) compression and with varying their thickness. The results obtained make it possible to predict in advance which layer, based on the specific bilayer parameters, will trigger the brittle fracture mechanism as well as to set the maximum destructive load of bilayer composites. Full article
(This article belongs to the Special Issue Lightweight Metal Alloys & Metal Matrix Composites)
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13 pages, 1614 KiB  
Article
Relationship between Structure and Properties of Intermetallic Materials Based on γ-TiAl Hardened In Situ with Ti3Al
by Varvara Avdeeva, Arina Bazhina, Mikhail Antipov, Alexander Stolin and Pavel Bazhin
Metals 2023, 13(6), 1002; https://doi.org/10.3390/met13061002 - 23 May 2023
Cited by 4 | Viewed by 1289
Abstract
In this work, intermetallic materials based on γ-TiAl in situ strengthened with the Ti3Al phase have been obtained from the initial components of titanium and aluminum under the conditions of free SHS-compression in one technological step and in ten seconds. This [...] Read more.
In this work, intermetallic materials based on γ-TiAl in situ strengthened with the Ti3Al phase have been obtained from the initial components of titanium and aluminum under the conditions of free SHS-compression in one technological step and in ten seconds. This method combines the process of the combustion of initial components in the mode of self-propagating high-temperature synthesis (SHS) with high-temperature shear deformation of the synthesized materials. The following initial compositions have been studied (mol): Ti–Al, 1.5 Ti–Al, and 3 Ti–Al. Thermodynamic calculations have been carried out and the actual combustion temperature of the compositions under study has been measured. To increase the exothermicity of the studied compositions, a “chemical furnace” based on a mixture of Ti–C powders has been used, which allows us to increase the combustion temperature and stabilize the combustion front. It has been found that the actual combustion temperature of the selected compositions increased from 890–1120 to 1000–1350 °C. The results of X-ray powder diffraction and SEM are presented, mechanical and tribological characteristics of the obtained materials are measured, and 3D images of wear grooves are given. It has been found that a decrease in Ti molar fraction and an increase in Al molar fraction in the initial mixture lead to an increase in the mechanical (hardness up to 10.2 GPa, modulus of elasticity up to 215 GPa) and tribological characteristics (wear up to 4.5 times, coefficient of friction up to 2.4 times) of intermetallic materials. Full article
(This article belongs to the Special Issue Lightweight Metal Alloys & Metal Matrix Composites)
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