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High-Performance Metal Additive Manufacturing, 2nd Edition
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High-Performance Metal Additive Manufacturing, 2nd Edition

A special issue of Journal of Manufacturing and Materials Processing (ISSN 2504-4494).

Deadline for manuscript submissions: 30 June 2025 | Viewed by 1302

Special Issue Editors

Dr. Hamed Asgari

E-Mail Website
Guest Editor
Department of Mechanical Engineering, University of New Brunswick, Fredericton, NB, Canada
Interests: metal additive manufacturing; texture and anisotropy; dynamic mechanical behaviour; materials characterization; light alloys
Special Issues, Collections and Topics in MDPI journals
Dr. Elham Mirkoohi

E-Mail Website
Guest Editor
Department of Mechanical Engineering, Auburn University, Auburn, AL 36849, USA
Interests: additive manufacturing; convergent manufacturing; PSPP linkages; AI and machine learning
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Metal additive manufacturing (AM), also known as 3D printing (3DP), has emerged as a transformative technology that revolutionizes traditional manufacturing processes. By enabling the direct fabrication of complex metal parts from digital designs, additive manufacturing offers unprecedented freedom in design and manufacturing flexibility. In this Special Issue, we seek to present a comprehensive collection of research articles, reviews, and case studies that highlight the state-of-the-art techniques, novel materials, in/ex situ material characterization, process optimization, modelling and simulation, and applications in metal AM, with a specific focus on achieving high-performance outcomes for strategic sectors, including the aerospace, marine, automotive, and energy industries. We encourage submissions that cover a wide range of topics, including, but not limited to, the following:

  • Design methodologies for high-performance metal parts using AM techniques.
  • Advanced metal powders and alloys tailored for AM, specifically metal matrix composites and smart alloys.
  • Process optimization and control strategies to enhance mechanical, chemical, and physical properties, as well as the surface finish of additively manufactured parts.
  • Novel post-processing techniques for improving the performance of additively manufactured metal components, particularly in extreme environments.
  • Real-world applications of high-performance metal AM in diverse sectors.

By assembling this collection of contributions, we aim to foster collaboration, knowledge exchange, and advancements in metal additive manufacturing. I invite researchers from academia and industry to share their expertise, innovative ideas, and developments in this exciting field. Together, we can push the boundaries of high-performance metal additive manufacturing and pave the way for its widespread adoption.

Dr. Hamed Asgari
Dr. Elham Mirkoohi
Guest Editors

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. Journal of Manufacturing and Materials Processing 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 1800 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 additive manufacturing
  • process optimization
  • quality control
  • materials characterization
  • powder processing
  • design for additive manufacturing

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Published Papers (1 paper)

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Research

25 pages, 7000 KiB  
Article
Small- to Large-Scale Electron Beam Powder Bed Fusion of Functionally Graded Steels
by Carlos Botero, William Sjöström, Emilio Jimenez-Pique, Andrey Koptyug and Lars-Erik Rännar
J. Manuf. Mater. Process. 2025, 9(1), 7; https://doi.org/10.3390/jmmp9010007 - 29 Dec 2024
Viewed by 1027
Abstract
The ability to control process parameters over time and build space in electron beam powder bed fusion (PBF-EB) opens up unprecedented opportunities to tailor the process and use materials of a different nature in the same build. The present investigation explored the various [...] Read more.
The ability to control process parameters over time and build space in electron beam powder bed fusion (PBF-EB) opens up unprecedented opportunities to tailor the process and use materials of a different nature in the same build. The present investigation explored the various methods used to adapt the PBF-EB process for the production of functionally graded materials (FGMs). In this way, two pre-alloyed powders—a stainless steel (SS) powder and a highly alloyed cold work tool steel (TS) powder—were combined during processing in an S20 Arcam machine. Feasibility experiments were first carried out in a downscaled build setup, in which a single powder container was installed on top of the rake system. In the container, one powder was placed on top of the other (SS/TS) so that the gradient materials were produced as the powders were spread and intermixed during the build. The process was later scaled up to an industrial machine setup, where a similar approach was implemented using two configurations of powder disposal: SS/SS + TS/TS and TS/TS + SS/SS. Each configuration had an intermediate layer of powder blend. The FGMs obtained were characterized in terms of their microstructure and local and macromechanical properties. For the microstructural analysis, optical microscopy, scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX) were performed on the polished cross-sections. This provided evidence of gradual microstructural and compositional transitions in the samples, with a shift from SS to TS and vice versa. Nanoindentation experiments confirmed that there was a consequent gradient in the hardness, stiffness, and wear ratio from the softer and ductile SS to the harder and stiff TS. Scratch experiments revealed gradual evolution in the sliding wear behavior of the printed materials. A “progressive spring” and a “hardness-tailored punching tool” were fabricated as demonstrators. The results obtained demonstrate the great potential to gradually tailor the composition, microstructure, mechanical properties, and wear resistance by combining different powders, and they suggest that any PBF-EB system can be repurposed to build gradient materials without hardware modification. Potential applications include the tooling industry, where hard and wear-resistant materials are needed for the surfaces of tools, with tougher and more ductile materials used in the cores of tools. Full article
(This article belongs to the Special Issue High-Performance Metal Additive Manufacturing, 2nd Edition)
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