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Grant support

This work was supported by the European Space Agency of The Netherlands (grant number: 4000123341/18/NL/MH). The authors also would like to acknowledge Edwin van den Eijnden for providing the test platform designed at TNO for the experiments presented in this work.

Analysis of institutional authors

Gonzalez, Laura CordovaAuthor

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January 13, 2025
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Porous materials additively manufactured at low energy: Single-layer manufacturing and characterization

Publicated to:Materials & Design. 191 108654- - 2020-06-01 191(), DOI: 10.1016/j.matdes.2020.108654

Authors: Jafari, Davoud; van Alphen, Koen J H; Geurts, Bernard J; Wits, Wessel W; Gonzalez, Laura Cordova; Vaneker, Tom H J; Rahman, Naveed Ur; Romer, Gert Willem; Gibson, Ian

Affiliations

Thales Netherlands, POB 42, NL-7550 GD Hengelo, Netherlands - Author
Univ Twente, Fac EEMCS Multiscale Modeling & Simulat, POB 217, NL-7500 AE Enschede, Netherlands - Author
Univ Twente, Fac Engn Technol, POB 217, NL-7500 AE Enschede, Netherlands - Author

Abstract

This paper presents an appropriate method to significantly reduce the pore size of high porosity porous stainless steel 316L structures fabricated by laser powder-bed fusion (LPBF) utilizing pulse wave emission (PW). PW deliberately avoids full-melt and applies low energy conditions to achieve single layer sintered porous material with controlled characteristics. Experimental approaches on a lab-scale setup equipped with a pulsed fiber laser system were developed to investigate the effect of laser scan settings. Properties of low-energy laser single sintered layers are studied experimentally, and the influence of laser power and pulse duration is discussed. A layer of sintered porous material was characterized in terms of the pore size, layer thickness, porosity and thermal conductivity. The results show that sintered porous layers can be fabricated by effectively connecting metal powder in the powder bed similar to a sintering process or partial melting. The porosity of fabricated structures was 51%-61% and the average pore radius ranged between 22 and 29 mu m. Wefound that the thermal conductivity of a single powder particle is 31.5% of the sintered layer value and the thermal conductivity of the sintered layer is 4.8% of its solid material. (C) 2020 The Author(s). Published by Elsevier Ltd.

Keywords

Additive manufacturingContinuous-wave emissionHeat-transferLaser powder-bed fusionMelting processMicrostructurPartsPorous structureProcess parametersPulsed laserSelective laserSintering/meltingStainless-steel powderSurface-morphologyThermal conductivitThermal-conductivity

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, 2020, it was in position 58/334, thus managing to position itself as a Q1 (Primer Cuartil), in the category Materials Science, Multidisciplinary.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 4.05, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jul 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-27, the following number of citations:

  • WoS: 14

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 2025-07-27:

  • 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: 72 (PlumX).

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.

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Netherlands.