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Metals
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Advanced Research of Metal Matrix Composites
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Advanced Research of 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 (31 December 2022) | Viewed by 4624

Special Issue Editor

Dr. Shili Shu

E-Mail Website
Guest Editor
School of Mechanical and Aerospace Engineering, Jilin University, Renmin Street NO. 5988, Changchun 130025, China
Interests: laser additive manufacturing; metal additive manufacturing; metal matrix composite; TiAl
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Metal matrix composites are materials based on metals, alloys and intermetallics, reinforced by particles or fibers. Due to their designability, metal matrix composites combine the best properties of the metal matrix and ceramic reinforcements, such as good ductility and toughness, a high modulus, and strength. Hence, metal matrix composites have developed into a new type of material, which has been widely applied in many fields, such as military, aerospace, and automotive fields, etc.

Thus, publications about the fabrication, characterization and testing of metal (e.g., Al, Ti, Fe, NiTi and TiAl et al.) matrix composites reinforced with different phases (e.g., fibers, particles, whiskers) are encouraged to be submitted for publication in this Special Issue. Furthermore, the composite manufacturing process (e.g., powder metallurgy, hot-pressed sintering, infiltration, stir casting) and strengthening mechanism analysis (e.g., fine-grain strengthening, second-phase strengthening) will also be fully considered. It is expected that, through this Special Issue, some guidance will be offered on the fabrication, investigation and application of the metal matrix composites.

It is my pleasure to invite you to submit manuscripts to this Special Issue. Full papers, communications, and reviews are all welcome.

Dr. Shili Shu
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

  • metal matrix composites
  • alloy matrix composites
  • intermetallic matrix composites
  • particle reinforcement
  • fiber reinforcement
  • microstructure characterization
  • interface bonding
  • mechanical properties
  • strengthening mechanism

Published Papers (3 papers)

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Research

10 pages, 5956 KiB  
Article
The Effect of Heating Temperature on α-α′ Miscibility and Separation in Fe-25Cr-5Al-RE Alloy
by Taotao Li, Yanlian Liu, Shengwei Cheng and Chengzhi Liu
Metals 2023, 13(3), 597; https://doi.org/10.3390/met13030597 - 15 Mar 2023
Viewed by 892
Abstract
In general, FeCrAl alloys are faced with the separation of the high-chromium solid solution into α and α′ phases. For the Fe-25Cr-5Al-RE alloy, it is imperative to investigate the structure and morphology and their effect on the alloy’s mechanical properties. In this paper, [...] Read more.
In general, FeCrAl alloys are faced with the separation of the high-chromium solid solution into α and α′ phases. For the Fe-25Cr-5Al-RE alloy, it is imperative to investigate the structure and morphology and their effect on the alloy’s mechanical properties. In this paper, XRD is used to reveal the presence of α and α′ phases. Based on XRD data, Rietveld refinement combined with quantitative texture analysis is carried out to determine the lattice constants and the harmonic coefficients. Then, SEM and TEM techniques are employed to provide an insight into the α′ phase and its morphology. The percentage total elongation at fracture is anti-correlated with the lattice of the α′ phase and the generalized harmonic coefficients C41. Full article
(This article belongs to the Special Issue Advanced Research of Metal Matrix Composites)
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8 pages, 2755 KiB  
Article
The Effect of Bi and Zn Additives on Sn-Ag-Cu Lead-Free Solder Alloys for Ag Reduction
by Yubin Kang, Jin-Ju Choi, Dae-Guen Kim and Hyun-Woo Shim
Metals 2022, 12(8), 1245; https://doi.org/10.3390/met12081245 - 25 Jul 2022
Cited by 5 | Viewed by 1680
Abstract
This study aimed to investigate the effects of the addition of Bi and Zn on the mechanical properties of Sn-Ag-Cu lead-free alloy frequently used as a soldering material in the semiconductor packaging process. To reduce the Ag content of the commercial alloy SAC305 [...] Read more.
This study aimed to investigate the effects of the addition of Bi and Zn on the mechanical properties of Sn-Ag-Cu lead-free alloy frequently used as a soldering material in the semiconductor packaging process. To reduce the Ag content of the commercial alloy SAC305 (Sn-3Ag-0.5Cu) by 1 wt.%, Bi and Zn were admixed in different ratios and the changes in mechanical and electrical properties were analyzed. Compared to the SAC305 alloy, electrical conductivity and elongation at break decreased while tensile strength increased following the addition of the two elements. In particular, upon the addition of 1 wt.% Bi, the tensile strength increased to a maximum of 43.7 MPa, whereas the tensile strength was 31.9 MPa in the alloy with 1 wt.% Zn. Differential thermal analysis and scanning electron microscopy revealed that the changes in physical properties can be ascribed to a reduction in the activation energy required for formation intermetallic compound when Bi was added, and the refinement of the structure due to a decrease in undercooling degree when Zn was added. When Bi and Zn were added at the same time, each characteristic for the change in the microstructure was applied in a complex manner, but the effect on the change of the physical properties worked independently. Full article
(This article belongs to the Special Issue Advanced Research of Metal Matrix Composites)
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14 pages, 3652 KiB  
Article
Frictional Behavior and Mechanical Performance of Al Reinforced with SiC via Novel Flake Powder Metallurgy
by Nabeel H. Alharthi, Saud M. Almotairy and Abdulrahman M. Almutairi
Metals 2022, 12(2), 323; https://doi.org/10.3390/met12020323 - 12 Feb 2022
Cited by 1 | Viewed by 1564
Abstract
This paper targets developing new low-cost sustainable materials. To achieve this objective, aluminum was utilized as base material for metal matrix nanocomposites (MMNC). Three routes of advanced manufacturing techniques were designed and implemented. Flake powder metallurgy as a reliable method to synthesis nanocomposites [...] Read more.
This paper targets developing new low-cost sustainable materials. To achieve this objective, aluminum was utilized as base material for metal matrix nanocomposites (MMNC). Three routes of advanced manufacturing techniques were designed and implemented. Flake powder metallurgy as a reliable method to synthesis nanocomposites powder was employed. By reinforcing aluminium with SiC and using a similar amount of both constitutes, three metal matrix nanocomposites (MMNCs) with different properties were produced. The ball milled powder were characterized using filed emission scanning electron microscope (FE-SEM) to analyze the morphology of the powder. Different investigations and analysis were conducted on the produced samples. These include X-ray diffraction (XRD) analysis, density and porosity, mechanical properties, and frictional performance. The obtained results include relative density, Young’s modulus, compressive yield strength, elongation, toughness, hardness, coefficient of friction, and specific wear rate. Achieving superior mechanical and tribological performance is evident from these results. This is accredited to the homogeneity of the reinforcement dispersion within the aluminum matrix. Full article
(This article belongs to the Special Issue Advanced Research of Metal Matrix Composites)
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