Managing Guest Editor:
J. P. Oliveira, UNIDEMI, Departamento de Engenharia Mecânica e Industrial, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.
Guest Editors:
Xu Song, Department of Mechanical and Automation Engineering, Chinese University of Hong Kong, Shatin, N.T. , HKSAR / Editor, JMADE
Alexander M. Korsunsky, University of Oxford, UK / Editor-in-Chief, JMADE
Dear colleagues,
Given the high number of submissions and requests for deadline extension, the Editors of the Special Issue (VSI) entitled “In-line metrology, design optimization and material development in additive manufacturing” have taken the decision to keep this VSI open for submissions until October 31st, 2020.
Additive Manufacturing (AM) remains a rich and rapidly developing theme in Materials & Design. From the initial focus in this field having been placed on achieving the desired optimal shape, the attention has now moved to controlling material microstructure and mechanical properties, as well as residual stress, in order to underpin structural integrity and performance. In the present VSI, alongside laser-, electron- and arc-based manufacturing, contributions are sought on all 'flavours' of AM, including Fused Filament Fabrication (FFF), 3D bio-printing, ink-jetting, and stereolithography.
To date, 28 full papers have been published. The following three articles provide an indicative selection:
- “Selective laser melting of hybrid ex-situ/in-situ reinforced titanium matrix composites: Laser/powder interaction, reinforcement formation mechanism, and non-equilibrium microstructural evolutions” (DOI: 10.1016/j.matdes.2019.108185) by E. Fereiduni et al. Here, the authors produced Ti-6Al-4V parts reinforced with B4C particles through selective laser melting. B4C particle dissolution was found to be dependent on the energy density which resulted in different microstructures in the produced parts. A consistent increase in microhardness was observed upon the introduction of B4C particles.
- “Obtaining large-size pyramidal lattice cell structures by pulse wire arc additive manufacturing” (DOI: 10.1016/j.matdes.2019.108401) by T. Xu et al. In this work, wire arc additive manufacturing was used to build unsupported large lattice-like cell structures. The authors showed that multiple process variables such as feed direction, heat input and droplet force greatly influence the quality of the produced parts. An optimized approach was demonstrated, opening new possibilities for the use of wire arc additive manufacturing in key engineering applications.
- “High-throughput synthesis of Mo-Nb-Ta-W high-entropy alloys via additive manufacturing” (DOI: 10.1016/j.matdes.2019.108358) by M. Moorehead. Two topics of major relevance were addressed in this paper: additive manufacturing and high entropy alloys. Directed energy deposition was used as a high-throughput method to evaluate multiple composition spaces. A comprehensive microstructural characterization supported by thermodynamic calculations stresses the importance of additive manufacturing as a potential tool for the development of novel alloy systems.
In view of the rich range of contributions attracted by this VSI, the Editors invite all interested researchers in this field to contribute their further outstanding results to this special issue.
Deadline for submission: 31st October 2020
To contribute a paper to the special issue, please visit and click on ‘Submit Your Paper’. When submitting your paper, please select the Article Type “VSI Additive Manufacturing”.
