Advances in Metal Matrix Composites (Second Edition)

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Crystalline Metals and Alloys".

Deadline for manuscript submissions: 15 April 2025 | Viewed by 858

Special Issue Editor


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Guest Editor
Materials and Surface Engineering Group, Chemnitz University of Technology, Erfenschlager Str. 73, 09125 Chemnitz, Germany
Interests: powder technology; thermal spraying and the production; characterisation of metallic composites

Special Issue Information

Dear Colleagues,

The new Special Issue of Crystals titled “Advances in Metal Matrix Composites (Second Edition)” continues the previous Special Issue (https://www.mdpi.com/journal/crystals/special_issues/metals_matrix). Metal matrix composites (MMCs) are composed of ductile metals reinforced with a variety of stiff ceramic particles or fibers. Due to their excellent mechanical and physical properties, MMCs have attracted great attention in the applications of the automobile and aerospace industries. However, fabricating advanced MMCs still encounters challenges, such as choosing suitable reinforcements, achieving good dispersion with strong interfacial bonding, and realizing large-scale production. Recently, many methods, including (ⅰ) utilization of low-dimensional reinforcements such as graphene or carbon nanotubes, (ⅱ) development of new manufacturing technologies such as additive manufacturing, (ⅲ) establishment of multi-scale strengthening systems, etc., have been attempted to improve the comprehensive performances of MMCs.

This Special Issue titled “Advances in Metal Matrix Composites (Second Edition)” aims to collect state-of-the-art research on advanced MMCs. Original contributions related to current MMCs are welcome in the form of short communications, full-length articles, and reviews. Potential topics include, but are not limited to: powder fabrication techniques, new sintering or fusion techniques, multi-functional MMCs, related modeling and simulation, new applications of MMCs, strengthening mechanisms, interface design and control, and microstructure and property relationships.

Prof. Dr. Ismail Özdemir
Guest Editor

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Keywords

  • metal matrix composites
  • additive manufacturing
  • nanocarbons
  • spark plasma sintering
  • powder metallurgy
  • interface control
  • strengthening mechanism
  • mechanical response
  • functional properties

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Published Papers (1 paper)

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Research

16 pages, 7182 KiB  
Article
Effect of Heat Input on Tin Bronze-Induced Intergranular Cracks During Arc Cladding Process
by Chen Chen, Wenjing Li, Fuqiang Tu and Tao Qin
Crystals 2024, 14(11), 926; https://doi.org/10.3390/cryst14110926 - 26 Oct 2024
Viewed by 639
Abstract
This work aimed to figure out the effect of heat input on the characteristics, formation, and elimination of liquid tin bronze-induced intergranular cracks in steel sheets with a thickness of 2 mm. Tin bronze cladding layers were prepared using an arc cladding technique [...] Read more.
This work aimed to figure out the effect of heat input on the characteristics, formation, and elimination of liquid tin bronze-induced intergranular cracks in steel sheets with a thickness of 2 mm. Tin bronze cladding layers were prepared using an arc cladding technique on the steel. A statistical method was adopted to analyze the severity of intergranular cracks. Microstructures and intergranular cracks were characterized by SEM and TEM. The tensile experiments were carried out using an electronic universal testing machine. For the bare steel sheets, the intergranular cracks originated from the cladding layer and propagated into the interior of the steel along the grain boundaries. The intergranular cracks could evolve into macrocracks and lead to the failure of steel. With the increase in heat input, the maximum temperature, maximum stress, and contact time between steel and liquid tin bronze increased. The severity of intergranular cracks was also increased, and the longest crack reached 520 μm. The mechanical properties of the steel sheets decreased with the increase in heat input. For nickel-plated steel sheets, intergranular cracks were eliminated under low heat input, and a transition layer with a nickel content of 12.32 wt.% was generated. The intergranular cracks generated under high heat input and nickel content in the transition layer were only 1.34 wt.%. The strength of the nickel-plated steel also decreased drastically, and the ductility was almost zero. Full article
(This article belongs to the Special Issue Advances in Metal Matrix Composites (Second Edition))
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