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Additive Manufacturing of Alloys and Composites (2nd Edition)

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: 20 June 2025 | Viewed by 2525

Special Issue Editors

School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, China
Interests: metallic glasses; composites; additive manufacturing; die casting
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, China
Interests: steels; copper alloys; phase transformation; additive manufacturing
Special Issues, Collections and Topics in MDPI journals
School of Mechatronic Engineering, Guangdong Polytechnic Normal University, Guangzhou, China
Interests: additive manufacturing; shape memory alloys
Special Issues, Collections and Topics in MDPI journals
School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, China
Interests: additive manufacturing; powder metallurgy; copper alloys; titanium alloys
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Additive manufacturing (AM, also called 3D printing) has initiated a revolution in the materials manufacturing industry since it was pioneered in 1980s, owing to its outstanding advantages of producing complex and/or customized parts with a short lead time. Nowadays, the application of AM is not limited to fabricating metals such as steels, high-entropy alloys and nonferrous alloys, but also their composites, in order to meet target service requirements. Many microstructures, including hierarchically heterogeneous microstructures, multiphase composites, nanosized precipitates, and dislocation networks, have been widely obtained in additive-manufactured alloys and composites, attracting considerable attention from both academia and industry in recent years. Undoubtedly, novel microstructures have led to unexpected outstanding mechanical properties of AM materials that cannot be achieved by the conventional synthesis process; however, their underlying connections are not fully understood. Therefore, investigation into microstructural evolution and resultant mechanical properties via AM is of great significance to further develop additive-manufactured alloys and composites, even if many challenges remain.

The current Special Issue welcomes original research articles, state-of-the-art reviews, and perspectives on recent developments in additive-manufactured alloys and composites. Suggested contributions may include, but are not limited to:

  1. High-performance additive-manufactured alloys and composites;
  2. Mechanisms of microstructural evolution in additive-manufactured alloys and composites;
  3. Relationships between microstructures and mechanical properties;
  4. Numerical simulations of additive-manufactured alloys and composites.

Dr. Lehua Liu
Dr. Haokai Dong
Dr. Haizhou Lu
Dr. Chao Zhao
Guest Editors

Manuscript Submission Information

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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

  • additive manufacturing
  • microstructures
  • mechanical properties
  • alloys
  • composites

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Related Special Issue

Published Papers (2 papers)

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Research

15 pages, 6243 KiB  
Article
Metallic Ion Release Behaviors from Cobalt–Chromium Alloys Fabricated by Additive Manufacturing with Mechanical Grinding in an Acidic Saline Solution
by Naoto Sakurai, Tomofumi Sawada, Yukinori Kuwajima, Kenta Yamanaka, Naoyuki Nomura, Masaaki Kasahara, Akihiko Chiba, Kazuro Satoh and Shinji Takemoto
Materials 2025, 18(2), 432; https://doi.org/10.3390/ma18020432 - 17 Jan 2025
Viewed by 973
Abstract
This study aimed to investigate the release of metallic ions from cobalt–chromium (Co-Cr) alloys fabricated by additive manufacturing (AM) for comparison with dental casting. Co-Cr alloys were fabricated via AM using selective laser melting (SLM) and electron beam melting (EBM) in powder-bed fusion. [...] Read more.
This study aimed to investigate the release of metallic ions from cobalt–chromium (Co-Cr) alloys fabricated by additive manufacturing (AM) for comparison with dental casting. Co-Cr alloys were fabricated via AM using selective laser melting (SLM) and electron beam melting (EBM) in powder-bed fusion. Polished and mechanically ground specimens were prepared. Each specimen was analyzed using an electron probe microanalyzer (EPMA). Each specimen was immersed in an acidic saline solution for 7 days in accordance with ISO 10271: 2020. The EPMA indicated the segregation of some elements in the as-prepared SLM and EBM specimens, whereas the polished and ground specimens exhibited a homogenous elemental distribution. The total amount of ion release from the SLM and EBM specimens was confirmed to be less than 7 μg/cm2, which was less than 42 μg/cm2 for the cast specimen. The polished and ground specimens exhibited an even lower ion release than the as-prepared specimens. The amount of ions released from the Co-Cr alloy was less than the 200 μg/cm² requirement of ISO 22674: 2022. Co-Cr alloys fabricated by SLM and EBM could provide superior corrosion resistance to cast specimens. AM could be a valuable method for fabricating appliances and denture frameworks in dentistry. Full article
(This article belongs to the Special Issue Additive Manufacturing of Alloys and Composites (2nd Edition))
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15 pages, 11188 KiB  
Article
Quasi-Static Penetration Properties of 3D-Printed Composite Plates
by Axel Baruscotti, Yuri Borgianni and Franco Concli
Materials 2024, 17(11), 2536; https://doi.org/10.3390/ma17112536 - 24 May 2024
Viewed by 1112
Abstract
This work investigated the impact and piercing load resistance (energy absorption capabilities) of 3D-printed composites plates manufactured by means of the Fused-Filament-Fabrication (FFF) technique. Two sets of reinforced composite plates were produced. The first set of plates was printed with short-carbon-fiber-reinforced polyamide-12, while [...] Read more.
This work investigated the impact and piercing load resistance (energy absorption capabilities) of 3D-printed composites plates manufactured by means of the Fused-Filament-Fabrication (FFF) technique. Two sets of reinforced composite plates were produced. The first set of plates was printed with short-carbon-fiber-reinforced polyamide-12, while the second set was reinforced with continuous fibers. The plates were tested with quasi-static indentation tests at various Span-to-Punch ratios and with three different indenter nose shapes (blunt, hemispherical, and conical). The quasi-static measurements were subsequently elaborated to estimate the energy absorption capability of the plates during a ballistic impact. The addition of continuous fibers increased the quasi-static energy absorption capability by 20–185% with respect to the short-fiber-reinforced plates. The quasi-static results showed that by including the continuous reinforcement in the plates, the normalized energy absorbed increased by an order of magnitude. Finally, a comparison with data from the literature concerning continuous-reinforced composite plates manufactured by means of traditional techniques was carried out. The comparison revealed that FFF-printed composite plates can compete with traditional composite ones in terms of both ballistic and quasi-static penetrating load conditions, even if limited by the lower fiber volume fraction. Thus, these findings confirm that this novel Additive Manufacturing technique is promising and worth investigating further. Full article
(This article belongs to the Special Issue Additive Manufacturing of Alloys and Composites (2nd Edition))
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