Development of the New Alloys and Metallic Composites for Strategic Applications through Additive Manufacturing

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Chemical and Molecular Sciences".

Deadline for manuscript submissions: closed (15 November 2021) | Viewed by 2851

Special Issue Editor


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Guest Editor
DISAT - Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
Interests: additive manufacturing; physical metallurgy; phase transformations; mechanics of materials; fracture analysis; microstructural characterization; corrosion behavior

Special Issue Information

Dear Colleagues,

Recently, additive manufacturing methods have been developed in different industrial applications. Because of the high production rate and dimensional precision of the final products, these methods are in the spotlight of current materials engineers. Likewise, from the metallurgical insight, additive manufacturing methods are often able to fabricate ultrafine grain materials, thanks to the rapid solidification of molten materials. Considering the abovementioned points, additive manufacturing methods could open a new window for the development of new alloys and composites which might fulfill higher expectations for strategic applications. In this Issue, authors are invited to share their latest achievements in the development of new alloys and composites, namely as metal matrix composites (MMC), Laser cladded sheets by additive manufacturing, lamellar composites and functionally graded materials (FGM), made by AM methods and reinforced conventional alloys, through the addition of different elements and compounds, etc.     

Dr. Mohammadreza Jandaghi
Guest Editor

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Keywords

  • additive manufacturing
  • selective laser melting (SLM)
  • electron beam melting (EBM)
  • direct energy deposition (DED)
  • metal matrix composites (MMC)
  • lamellar composites
  • laser cladding
  • microstructure
  • mechanical properties
  • corrosion behavior

Published Papers (1 paper)

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Research

10 pages, 2292 KiB  
Article
High-Temperature Synthesis of Metal–Matrix Composites (Ni-Ti)-TiB2
by Vladimir Promakhov, Alexey Matveev, Nikita Schulz, Mikhail Grigoriev, Andrey Olisov, Alexander Vorozhtsov, Alexander Zhukov and Victor Klimenko
Appl. Sci. 2021, 11(5), 2426; https://0-doi-org.brum.beds.ac.uk/10.3390/app11052426 - 09 Mar 2021
Cited by 9 | Viewed by 2212
Abstract
Currently, metal–matrix composite materials are some of the most promising types of materials, and they combine the advantages of a metal matrix and reinforcing particles/fibres. Within the framework of this article, the high-temperature synthesis of metal–matrix composite materials based on the (Ni-Ti)-TiB2 system [...] Read more.
Currently, metal–matrix composite materials are some of the most promising types of materials, and they combine the advantages of a metal matrix and reinforcing particles/fibres. Within the framework of this article, the high-temperature synthesis of metal–matrix composite materials based on the (Ni-Ti)-TiB2 system was studied. The selected approaches make it possible to obtain composite materials of various compositions without contamination and with a high degree of energy efficiency during production processes. Combustion processes in the samples of a 63.5 wt.% NiB + 36.5 wt.% Ti mixture and the phase composition and structure of the synthesis products were researched. It has been established that the synthesis process in the samples proceeds via the spin combustion mechanism. It has been shown that self-propagating high-temperature synthesis (SHS) powder particles have a composite structure and consist of a Ni-Ti matrix and TiB2 reinforcement inclusions that are uniformly distributed inside it. The inclusion size lies in the range between 0.1 and 4 µm, and the average particle size is 0.57 µm. The obtained metal-matrix composite materials can be used in additive manufacturing technologies as ligatures for heat-resistant alloys, as well as for the synthesis of composites using traditional methods of powder metallurgy. Full article
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