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Metals
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Processing of Metal Matrix Composites
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Processing of Metal Matrix Composites

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: closed (30 April 2018) | Viewed by 17362

Special Issue Editors

Dr. Anne Mertens

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Guest Editor
Aerospace and Mechanics, Faculty of Applied Science, Université de Liège, Quartier Polytech 1, Allée de la Découverte, 13A, B 4000 Liège, Belgium
Interests: additive manufacturing; friction stir processing; light alloys; metal matrix composites; tribology; thermal properties; microstructures; surface modification
Assoc. Prof. Marie-Noëlle Avettand-Fènoël

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Guest Editor
Unité Matériaux Et Transformations (UMET), UMR CNRS 8207Université Lille 1, 59655 Villeneuve d’Ascq, France
Interests: metallurgy; metal matrix composites; thermomechanical processes (mechanical alloying, accumulative roll bonding, friction stir processing); joining (friction stir welding, linear friction welding, magnetic pulse welding, brazing); microstructure; mechanical and functional properties; phase transformations

Special Issue Information

Dear Colleagues,

Metal matrix composites (MMCs), in bulk or coating, have long been attracting interest, as they offer the opportunity to fulfil a broad array of functions (e.g., exhibiting specific thermal properties, or as self-cleaning, self-lubricating or self-healing materials) and requirements (i.e., facing higher service temperature, corrosive environment and/or increased mechanical load). This versatility of metal matrix composites can be ascribed, not only to the vast choice of combinations of metallic matrix and second phases, but also to the great diversity of processing methods, including solidification processes, powder metallurgy, as well as additive manufacturing and severe plastic deformation (SPD) processes, which have opened even more possibilities. In particular, additive manufacturing allows to fabricate composite parts with complex geometry. With the latter process, the control of reactions between the second phases and the molten metal may be challenging, but these reactions also offer the opportunity for the in-situ synthesis of well distributed nano-scale second phases. With regards to severe plastic deformation processes, they tend to avoid harmful interfacial reactions as well as solidification defects since they proceed in the solid state. The deformation generated during these processes offers the possibility to associate immiscible materials, to get out-of-equilibrium structures, as well as nanostructures, nanocomposites and even novel MMCs with advanced enhanced properties. This Special Issue, hence, aims at showcasing the latest developments in the fabrication of metal matrix composites, with a particular attention for the new possibilities (in terms of microstructures, properties and functionalities) offered by the use of additive manufacturing and SPD processes.

Dr. Anne Mertens
Prof. Marie-Noëlle Avettand-Fènoël
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

  • Metal matrix composites
  • Processing
  • Additive Manufacturing
  • Severe Plastic Deformation Processes
  • Relationships between Microstructure, Functional and/or Mechanical Properties

Published Papers (3 papers)

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Research

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10 pages, 12588 KiB  
Article
The Microstructural Characterization and Mechanical Properties of 5 vol. % (TiBw + TiCp)/Ti Composite Produced by Open-Die Forging
by Jianchao Han, Zhidan Lü, Changjiang Zhang, Shuzhi Zhang, Hongzhou Zhang, Peng Lin and Peng Cao
Metals 2018, 8(7), 485; https://doi.org/10.3390/met8070485 - 25 Jun 2018
Cited by 3 | Viewed by 3114
Abstract
In this study, a Ti composite reinforced with 5 vol. % (TiBw + TiCp) was fabricated by an in situ casting route. Open die forging in (α + β) phase region was conducted on the composite casting. The microstructures of [...] Read more.
In this study, a Ti composite reinforced with 5 vol. % (TiBw + TiCp) was fabricated by an in situ casting route. Open die forging in (α + β) phase region was conducted on the composite casting. The microstructures of the as-forged composite pancake are inhomogeneous in terms of matrix microstructure and distribution of reinforcements. The matrix grains are gradually refined from the periphery to centre of the pancake. The reinforcements TiBw and TiCp tend to be uniformly distributed in the centre region. It is suggested that the microstructure difference can be mainly ascribed to the temperature variation from the periphery to the centre. The tensile testing results show that the centre region of the composite pancake exhibits higher strength than the peripheral region. The mechanical behaviour of the composite pancake with the temperature is discussed. Full article
(This article belongs to the Special Issue Processing of Metal Matrix Composites)
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Review

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33 pages, 12493 KiB  
Review
An Overview of Metal Matrix Nanocomposites Reinforced with Graphene Nanoplatelets; Mechanical, Electrical and Thermophysical Properties
by Abdollah Saboori, Mehran Dadkhah, Paolo Fino and Matteo Pavese
Metals 2018, 8(6), 423; https://doi.org/10.3390/met8060423 - 05 Jun 2018
Cited by 64 | Viewed by 8132
Abstract
Two-dimensional graphene nanoplatelets with unique electrical, mechanical and thermophysical characteristics are considered as an interesting reinforcement to develop new lightweight, high-strength, and high-performance metal matrix nanocomposites. On the other hand, by the rapid progress of technology in recent years, development of advanced materials [...] Read more.
Two-dimensional graphene nanoplatelets with unique electrical, mechanical and thermophysical characteristics are considered as an interesting reinforcement to develop new lightweight, high-strength, and high-performance metal matrix nanocomposites. On the other hand, by the rapid progress of technology in recent years, development of advanced materials like new metal matrix nanocomposites for structural engineering and functional device applications is a priority for various industries. This article provides an overview of research efforts with an emphasis on the fabrication and characterization of different metal matrix nanocomposites reinforced by graphene nanoplatelets (GNPs). Particular attention is devoted to find the role of GNPs on the final electrical and thermal conductivity, the coefficient of thermal expansion, and mechanical responses of aluminum, magnesium and copper matrix nanocomposites. In sum, this review pays specific attention to the structure-property relationship of these novel nanocomposites. Full article
(This article belongs to the Special Issue Processing of Metal Matrix Composites)
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25 pages, 6082 KiB  
Review
An Overview of Key Challenges in the Fabrication of Metal Matrix Nanocomposites Reinforced by Graphene Nanoplatelets
by Abdollah Saboori, Seyed Kiomars Moheimani, Mehran Dadkhah, Matteo Pavese, Claudio Badini and Paolo Fino
Metals 2018, 8(3), 172; https://doi.org/10.3390/met8030172 - 10 Mar 2018
Cited by 58 | Viewed by 5574
Abstract
This article provides an overview of research efforts with an emphasis on the fabrication of metal matrix nanocomposites (MMNCs) reinforced by graphene nanoplatelets (GNPs). Particular attention is devoted to finding the challenges in the production of MMNCs through the powder metallurgy techniques. The [...] Read more.
This article provides an overview of research efforts with an emphasis on the fabrication of metal matrix nanocomposites (MMNCs) reinforced by graphene nanoplatelets (GNPs). Particular attention is devoted to finding the challenges in the production of MMNCs through the powder metallurgy techniques. The main technical challenges can be listed as: (I) reinforcement selection; (II) dispersion of reinforcement within the matrix; (III) reactivity between the reinforcement and matrix; (IV) interfacial bonding; (V) preferred orientation of reinforcement. It is found that some of these difficulties can be attributed to the nature of the materials involved, while the others are related to the preparation routes. It is reported that the challenges related to the process can often be addressed by changing the production process or by using post-processing techniques. More challenging issues instead are related to the composition of the matrix and reinforcement, their reactivity and the dispersion of reinforcement. These topics still bring significant challenges to the materials scientists, and it would be worth mentioning that the fabrication of MMNCs with a uniform dispersion of reinforcement, strong interfacial bonding, without detrimental reactions and improved isotropic properties is still a puzzling issue. Full article
(This article belongs to the Special Issue Processing of Metal Matrix Composites)
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