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oai:docta.ucm.es:20.500.14352/1180752025-03-18T14:23:42Zcom_20.500.14352_14col_20.500.14352_15

PEO of additively manufactured Al10SiMg alloy: Effects of α-Al2O3 particles on energy consumption and wear behaviour López-Martínez, Esther Mohedano Sánchez, Marta Matykina, Endzhe Arrabal Durán, Raúl 620 PEO Alumina particles Al10SiMg Wear Hard anodizing Additive manufacturing Materiales 3312 Tecnología de Materiales Plasma electrolytic oxidation (PEO) coatings were developed on an additively manufactured Al10SiMg alloy pre-treated with hard anodizing (HA). The influence of α−Al2O3 particles incorporated during PEO was evaluated in terms of energy consumption, coating morphology, composition and wear behaviour. Combining a 20 μm-thick HA precursor and a PEO electrolyte with suspended α−Al2O3 particles resulted in the highest energy savings (∼60%). Wear volume loss measurements and wear track characterization revealed that the PEO coating with added particles (PEOP) outperformed the coating without particles and a conventional hard anodizing layer. This superiority was attributed to the partial sealing of the outer porous layer by the incorporated α−Al2O3 particles as well as the reduced SiO2 content and the formation of a W-rich tribolayer on the wear track surface. Agencia Estatal de Investigación Ministerio de Ciencia, Innovación y Universidades FEDER, EU Depto. de Ingeniería Química y de Materiales Fac. de Ciencias Químicas TRUE pub 2025-02-14T08:27:47Z 2025-02-14T08:27:47Z 2024-06-24 journal article VoR https://hdl.handle.net/20.500.14352/118075 XXXX-XXXX 10.1016/j.jmrt.2024.06.171 eng PID2021–124341OB-C22/AEI/10.13039/501100011033/FEDER RYC-2017 21843. E. Lopez-Martinez, M. Mohedano, E. Matykina, R. Arrabal, PEO of additively manufactured Al10SiMg alloy: Effects of α-Al2O3 particles on energy consumption and wear behaviour, Journal of Materials Research and Technology, Volume 31, 2024, Pages 1786-1796, ISSN 2238-7854, https://doi.org/10.1016/j.jmrt.2024.06.171. Attribution-NonCommercial-ShareAlike 4.0 International http://creativecommons.org/licenses/by-nc-sa/4.0/ open access application/pdf Elsevier