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This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sk & lstrok;odowska-Curie grant agreement No 956401.

Analysis of institutional authors

Casata, MassimilianoAuthorPerosanz, SergioAuthorGarrido, ConradoAuthorBarba, DanielCorresponding Author

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November 12, 2024
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A holistic study of the effect of geometrical and processing conditions on the static mechanical performance of LPBF strut elements

Publicated to:Materials & Design. 247 113387- - 2024-11-01 247(), DOI: 10.1016/j.matdes.2024.113387

Authors: Casata, Massimiliano; Perosanz, Sergio; Garrido, Conrado; Barba, Daniel

Affiliations

Univ Politecn Madrid, ETS Ingn Aeronaut & Espacio, Plaza Cardenal Cisneros 3, Madrid 28040, Spain - Author

Abstract

Laser powder bed fusion (LPBF) enables geometrical designs of great complexity, such as metamaterials. These structures are founded on elemental struts printed at various orientations and sizes. Understanding how these design variables affect mechanical properties is crucial for optimizing component performance. This work aims to systematically investigate the impact between these design variables on defects, roughness, geometrical deviations, and microstructure of Ti-6Al-4V elemental struts and correlate them with mechanical properties. The analysis shows that smaller strut diameters present an increased sensitivity to defects, reducing ductility by 45.8% on average as the diameter decreases from 1.5 mm to 0.5 mm. When compared to vertical struts, horizontally printed struts of 1.5 mm, 1 mm, and 0.5 mm present on average a respective reduction in ductility of 57.4%, 59.8%, and 70.9%, and a respective reduction in the ultimate strength of 13.3%, 24.5%, 61.2%. This has been associated with warping and increased roughness caused by dross formation. Finally, the study shows the complex interaction of process parameters' effect with the struts' orientation and size. These findings pose the basis for a more accurate and optimal mechanical design of cellular metamaterials, from the underlying material perspective.

Keywords

% reductionsAdditive manufacturingDesign variablesFatigue-strengthGeometrical conditionsLaserLaser materials processingLaser powder bed fusionLaser powdersLattice structuresMechanicalMechanical propertieMechanical propertiesMetamaterialsMicrostructureOrientatioParametersPowder bedPowder bed fusionPropertyStrutsSurface-roughnessTensile propertiesTi-6al-4vTi-6al-4v strutsTitanium (alloys)Titanium alloys

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Materials & Design due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position 88/460, thus managing to position itself as a Q1 (Primer Cuartil), in the category Materials Science, Multidisciplinary.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-10-29:

  • WoS: 1
  • Scopus: 1

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-10-29:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 17 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

    It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

    • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
    • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/84592/

    As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

    • Views: 97
    • Downloads: 20

    Leadership analysis of institutional authors

    There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (CASATA, MASIMILIANO) and Last Author (BARBA CANCHO, DANIEL).

    the author responsible for correspondence tasks has been BARBA CANCHO, DANIEL.