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Powder Metallurgy of Metals and Composites
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Powder Metallurgy of Metals and Composites

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Powder Metallurgy".

Deadline for manuscript submissions: 25 October 2026 | Viewed by 3969

Special Issue Editor

Dr. Ivanovich Estrada-Guel

E-Mail Website
Guest Editor
Departamento de Física de Materiales, Metalurgia e Integridad Estructural, Centro de Investigación en Materiales Avanzados, CIMAV, Miguel de Cervantes 120, Chihuahua 31136, Mexico
Interests: mechanical alloying; microstructural refining; high-energy ball milling; microstructure–property relationship
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Powder metallurgy (PM) encompasses a series of processes used to reduce the need for subtractive processes in manufacturing, lowering material losses and reducing the cost of the final product. PM is revolutionizing materials engineering, offering innovative solutions for the production of novel alloys and composites. Its ability to control microstructures and improve mechanical properties has attracted worldwide attention in the development of high-performance materials in strategic fields such as the aerospace, automotive, and biomedical industries. Trough PM can create engineering materials with unique properties that are difficult or impossible to attain through traditional methods. The scopes of the PM are enhanced by mechanical alloying and high-energy ball milling, enabling the generation of refined microstructures and improving the mechanical properties and functionality of final products. The integration of composite materials into PM enhances material capabilities, allowing for lightweight-strength components with tailored properties. Innovative sintering methods, such as spark plasma, microwave, induction heating, and additive manufacturing-assisted techniques, are improving the boundaries of densification levels and particle bonding, demonstrating significant advancements in achieving microstructural homogeneity and improving mechanical performance, establishing them as essential tools for advanced material design.

This Special Issue invites contributions focusing on the latest developments in PM, including review papers, alloy and composite preparations, microstructure–property relationships, and sintering methods. We aim to foster collaboration among researchers and industry professionals to explore new frontiers in PM technology for material preparation. Your insights and innovations will contribute to advancing this dynamic field and unlocking its potential for future technologies. Join us in consolidating the future of materials science.

Dr. Ivanovich Estrada-Guel
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 250 words) can be sent to the Editorial Office for assessment.

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

  • powder metallurgy
  • alloys
  • composites
  • microstructure
  • structure
  • mechanical properties
  • sintering
  • mechanical alloying
  • high-energy ball milling

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Published Papers (3 papers)

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Research

26 pages, 10124 KB  
Article
Capacitor Electrical Discharge Sintering of Amorphous Fe-Si-B Powder
by Rosa María Aranda, Petr Urban, Jesús Cintas, Juan Manuel Montes and Francisco G. Cuevas
Metals 2026, 16(2), 239; https://doi.org/10.3390/met16020239 - 21 Feb 2026
Viewed by 468
Abstract
High purity powders of Fe, Si and B mixed with atomic composition Fe78Si9B13 are subjected, after arc melting, to a melt spinning process. The amorphous ribbons are transformed into powder by mechanical milling, reaching mean sizes of 65 [...] Read more.
High purity powders of Fe, Si and B mixed with atomic composition Fe78Si9B13 are subjected, after arc melting, to a melt spinning process. The amorphous ribbons are transformed into powder by mechanical milling, reaching mean sizes of 65 and 262 µm, taking care of maintaining the amorphous character. The powders are sintered by means of a very quick capacitor electrical discharge (CEDS), while trying to maintain the initial structure of the powders. The CEDS process is analyzed depending on the thermal energy applied during the discharge, as well as on the particle size of the powders and the powders’ mass. The porosity, microstructure, hardness, electrical resistivity and magnetic properties of the prepared compacts are analyzed. Thus, for powders with a mean size of 262 μm, the porosity can be reduced from 0.33 to 0.11 after sintering, reaching a microhardness of up to 1100 HV1 after applying a discharge of 2640 J/s. A coercivity of 1895 A/m and a saturation flux density of 1.32 T are achieved in the compact, which maintains a microstructure with up to 64% of amorphous phase. Full article
(This article belongs to the Special Issue Powder Metallurgy of Metals and Composites)
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27 pages, 8982 KB  
Article
Tribological Performance of Micro and Nano-Titanium Carbide-Reinforced Copper Composites Manufactured by Powder Metallurgy: Experimental Studies and Modelling
by Anwar Ulla Khan, Sajjad Arif, Muhammed Muaz, Mohammad Shan, Ateyah Alzahrani and Ahmad Alghamdi
Metals 2026, 16(1), 66; https://doi.org/10.3390/met16010066 - 5 Jan 2026
Viewed by 629
Abstract
This study reports the fabrication of copper-based metal matrix composites reinforced with a combination of micro- and nano-sized titanium carbide (TiC) particles using the powder metallurgy route. The micro-TiC content was maintained at 5 wt.%, while the nano-TiC addition was systematically varied between [...] Read more.
This study reports the fabrication of copper-based metal matrix composites reinforced with a combination of micro- and nano-sized titanium carbide (TiC) particles using the powder metallurgy route. The micro-TiC content was maintained at 5 wt.%, while the nano-TiC addition was systematically varied between 1 and 3 wt.% in increments of 1 wt.%. The consolidation of the blends was achieved by uniaxial compaction at 500 MPa, followed by sintering in a nitrogen atmosphere at 750–900 °C for 2 h. Tribological assessment under dry sliding conditions was performed using a pin-on-disk apparatus. Structural and microstructural examinations using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS) confirmed a uniform incorporation of the reinforcements within the Cu matrix. The incorporation of nano-TiC up to 2 wt.% significantly enhanced density, hardness, and wear resistance, after which a marginal decline was observed. SEM analysis of worn surfaces revealed that adhesive wear, abrasion, and delamination were the primary wear mechanisms. To better understand the relationship between processing conditions and material responses, response surface methodology (RSM) was employed. The developed models for density, hardness, and wear loss showed good agreement with the experimental results, with confirmatory tests yielding errors of 1.59%, 2.06%, and 2%, respectively, thereby validating the approach’s reliability. Full article
(This article belongs to the Special Issue Powder Metallurgy of Metals and Composites)
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14 pages, 7282 KB  
Article
Effects of Sintering Pressure and Co Content on the Microstructure and Mechanical Performance of WC–Co Cemented Carbides
by Jinhu Ju, Dan Huang, Haitao Xu, Duo Dong, Jiangpeng Lou, Yuan Xu, Jiao Shi and Liu Zhu
Metals 2025, 15(9), 930; https://doi.org/10.3390/met15090930 - 22 Aug 2025
Cited by 5 | Viewed by 2279
Abstract
The fabrication of WC-based cemented carbides faced challenges including inhomogeneous composition and grain coarsening. To solve these problems, WC–Co cemented carbides were fabricated via spark plasma sintering (SPS) using core–shell WC–Co powders prepared by an electroless plating method. The effects of sintering pressure [...] Read more.
The fabrication of WC-based cemented carbides faced challenges including inhomogeneous composition and grain coarsening. To solve these problems, WC–Co cemented carbides were fabricated via spark plasma sintering (SPS) using core–shell WC–Co powders prepared by an electroless plating method. The effects of sintering pressure and Co content on the microstructure and mechanical properties of the cemented carbides were investigated. The results showed that, with increasing sintering pressure, the relative density of the sintered samples was improved (98.4–99.6%) while the grains were coarsened (0.94–1.07 μm). The optimal properties (fracture toughness 11.11 MPa·m1/2, and hardness 2100.3 HV30) were obtained when sintered with a pressure of 20 MPa. Grain coarsening at higher pressure (30 MPa) reduced the toughness of the cemented carbides. When the Co content was increased from 3 wt.% to 8 wt.%, fracture toughness was improved while the hardness of the cemented carbides was reduced, attributed to the intrinsic high toughness and low hardness of the Co phase. The WC–8 wt.% Co cemented carbides exhibited optimized synergic mechanical performance (hardness of 1874.2 HV30 and fracture toughness of 13.77 MPa·m1/2). This work elucidated the relationship between the key sintering parameters (pressure and Co content) and the microstructure and mechanical properties of the cemented carbides. The achievements obtained provide a theoretical foundation for high-quality fabrication of the WC–Co cemented carbides. Full article
(This article belongs to the Special Issue Powder Metallurgy of Metals and Composites)
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