{rfName}
Mi

Indexed in

License and Use

Icono OpenAccess

Citations

3

Altmetrics

Analysis of institutional authors

Garcia-Galvan, F RAuthor

Share

November 4, 2025
Publications
>
Article
Sí

Microstructure and electrochemical behavior of AZ91 Mg Alloy produced by laser powder bed fusion

Publicated to: Journal of Magnesium and Alloys. 13 (9): 4577-4595 - 2025-09-01 13(9), DOI: 10.1016/j.jma.2025.08.002

Authors:

Reyes-Riverol, R; Callaghan, G; Garcia-Galvan, F R; Trivino-Pelaez, A; Medina, J; Williams, G; Jimenez, J A; Fajardo, S
[+]

Affiliations

Natl Ctr Met Res CENIM CSIC, Ave Gregorio del Amo 8, Madrid 28040, Spain - Author
Swansea Univ, Fac Sci & Engn, Dept Mat Sci & Engn, Bay Campus,Fabian Way, Swansea SA1 8EN, Wales - Author
Univ Carlos III Madrid, Dept Mat Sci & Engn, Avda Univ 30, Madrid 28911, Spain - Author
Univ Politecn Madrid, Dept Mech Chem & Ind Design Engn, ETSIDI, Madrid 28010, Spain - Author
See more

Abstract

The corrosion behavior of the laser powder bed fusion (LPBF) AZ91 magnesium alloy was investigated by comparing its longitudinal and transverse sections with the cast AZ91 alloy. Microstructural analysis revealed a fine, homogeneous Mg17 Al12 distribution in LPBF samples, contrasting with the network-like structure in the cast alloy. Electrochemical and hydrogen evolution tests demonstrated no significant anisotropy in LPBF sections, but they exhibited higher corrosion rates than the cast alloy. Potentiodynamic polarization and electrochemical impedance spectroscopy confirmed that the corrosion process was cathodically controlled by the Mg17 Al12 phase fraction. Scanning vibrating electrode technique further validated these findings, highlighting lower electrochemical activity in cast AZ91 alloy. (c) 2025 Chongqing University. Publishing services provided by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ )
[+]

Keywords

Additive manufacturingAluminum alloysAluminum corrosionAnodic hydrogenAz91Az91 alloyAz91 mg alloysBeta-phaseBinary alloysCast alloysCorrosion behaviorCorrosion rateCorrosion resistanceCorrosion resistant alloysCorrosive effectsElectrochemical behaviorsElectrochemical corrosionElectrochemical impedance spectroscopyEnhanced catalytic-activityHydrogen evolutionHydrogen-evolutionImpedanceLaser powdersLocalized corrosionMagnesium alloysMagnesium corrosionMagnesium powderMass-lossMg alloyMg alloysMicrostructurePowder bedPure magnesiumSelective laser meltingTime hydrogen measurement

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Journal of Magnesium and Alloys 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, 2025, it was in position 2/97, thus managing to position itself as a Q1 (Primer Cuartil), in the category Metallurgy & Metallurgical Engineering. Notably, the journal is positioned above the 90th percentile.

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 2026-04-01:

  • 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 2026-04-01:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 7.
  • 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: 6 (PlumX).

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

  • The Total Score from Altmetric: 1.

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: United Kingdom.

[+]

Awards linked to the item

SF acknowledges the financial support under the Project PID2021-126166OB-I00 funded by MCIN/AEI/10.13039/501100011033 and by "ERDF A way of making Europe" (European Union), and the Grant CNS2023-144665 funded by MCIN/AEI/10.13039/501100011033 and by the "European Union NextGenerationEU/PRTR." SF and RRR thank the CSIC for the financial support under the project PIE-20216AT012. The authors would like to express their gratitude to the CENIM-CSIC XRD, Optical Metallography, and Electron Microscopy Laboratories. Additionally, we would like to thank Ms. Edurne Laurin for her valuable assistance in the preparation of the TEM samples.
[+]