Advanced Additive Manufacturing of Metallic Materials

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

Deadline for manuscript submissions: 31 July 2026 | Viewed by 1213

Special Issue Editors


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Guest Editor
School of Mechanical Engineering, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
Interests: metal foams; coating; corrosion; mechanical properties and structural characterization of metals
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
School of Mechanical Engineering, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
Interests: coatings technologies; fatigue and stress; corrosion cracking; nanoindentation; material characterization; finite elements method (FEM); additive manufacturing; nanotechnology; biomaterials and bioengineering; shape memory alloys; porous materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The additive manufacturing (AM) of metals has evolved from rapid prototyping to the full-scale production of complex, high-performance components. However, achieving consistent microstructures, predictable mechanical properties, and defect control remains a challenge. This Special Issue focuses on recent advances in AM process development, structure–property relationships, alloy design tailored for AM, and novel post-processing approaches. We welcome studies combining experimental results with modeling or machine learning, as well as in situ monitoring strategies for quality assurance. Contributions that bridge fundamental understanding with industrial applications, such as aerospace, energy, and biomedical sectors, are particularly encouraged.

Dr. Fani Stergioudi
Prof. Dr. Nikolaos Michailidis
Guest Editors

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Keywords

  • additive manufacturing
  • microstructure control
  • defect mitigation
  • alloy design
  • in situ process monitoring

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Published Papers (1 paper)

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Research

22 pages, 40292 KB  
Article
Maritime Applications as Motivation for Analytical Calculation of Thermal History in Low-Carbon Mild Steel WAAM Cylinders
by Eleftherios Lampros and Anna D. Zervaki
Metals 2026, 16(2), 192; https://doi.org/10.3390/met16020192 - 5 Feb 2026
Cited by 2 | Viewed by 873
Abstract
This study reviews the application of wire arc additive manufacturing (WAAM) technology in maritime engineering and investigates an experimentally driven analytical approach for prediction of thermal distributions based on the Rosenthal solution. Two ER70S-6 low-carbon steel WAAM cylinders were fabricated using gas metal [...] Read more.
This study reviews the application of wire arc additive manufacturing (WAAM) technology in maritime engineering and investigates an experimentally driven analytical approach for prediction of thermal distributions based on the Rosenthal solution. Two ER70S-6 low-carbon steel WAAM cylinders were fabricated using gas metal arc welding (GMAW) and plasma arc welding (PAW) processes, with interlayer temperatures of 453 °C and 250 °C, respectively. Accurately measuring the temperature field to tailor the microstructure has long been a challenge. The results indicated a significant deviation between the analytical predictions and the experimental data. To address this discrepancy, a hybrid approach combining analytical and experimental results was implemented. Time intervals between layers, extracted from the experimental data, were incorporated into the Rosenthal equation to improve the accuracy of temperature field predictions. The microstructure at the bottom, middle, and top regions of the WAAM components was examined using optical microscopy. Tensile testing and Vickers microhardness measurements were conducted to evaluate mechanical properties. Scanning electron microscopy (SEM) was used to analyze fracture surfaces and identify fracture modes. The results were consistent with those reported for other ER70S-6 cylindrical WAAM components. This work highlights limitations of the Rosenthal solution and emphasizes the need for thermal models in WAAM applications. Full article
(This article belongs to the Special Issue Advanced Additive Manufacturing of Metallic Materials)
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