20.500.12556/DiRROS-22040 Cerium-containing hexamethyldisiloxane coatings for corrosion protection of a laser-based powder bed fusion fabricated AlSi10Mg0.3 alloy This study investigates the formation and mechanism of action of advanced cerium-containing hexamethyldi siloxane (HMDSO) coatings to improve the corrosion resistance of AlSi10Mg0.3 alloy, fabricated by laser-based powder bed fusion (L-PBF). HMDSO coatings were deposited using an aerosol-assisted atmospheric pressure plasma deposition (APPD) process to protect the metal surface. This study investigated the effect of different cerium concentrations in the aerosol solution on the deposition process. The coatings were characterised using profilometry to determine coating thickness, while light optical mi croscopy was used for morphology analyses. Fourier transform infrared spectroscopy and transmission electron microscopy provided detailed information about coating formation and microstructure, while corrosion behaviour was assessed through potentiodynamic polarisation (PDP) measurements in 0.1 M NaCl solution and six-weeks salt-spray tests (ASTM B117–23). Results showed that aerosol-assisted APPD enables the deposition of approximately 800 nm thick HMDSO coatings with incorporated CeO 2 nanoparticles. Corrosion measurements revealed reduced corrosion current density, indicating improved corrosion resistance. The presence of cerium in the coatings further enhanced this resistance, as the formed CeO₂ nanoparticles acted as diffusion barriers against the corrosive medium. Corrosion testing confirmed that the coating with 10 wt% cerium in the aerosol solution provided the most durable pro tection. Cerium-containing HMDSO coatings have demonstrated beneficial corrosion protection for L-PBF- fabricated AlSi10Mg0.3 with further possible improvements in studying active protection fizikalna kemija cerij rja prevleke true false true Elsevier Nizozemska Angleški jezik Slovenski jezik © 2025 The Authors. Neznano 2025-04-16 13:30:07 2025-04-16 13:30:07 2025-10-24 03:50:24 0000-00-00 00:00:00 2025 0 0 str. 1-16 Art. 132094 Vol. 506 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2024-12-31 2025-03-26 2025-03-28 54 0257-8972 10.1016/j.surfcoat.2025.132094 232814595 RAZ_Spuller_Mirjam_2025.pdf RAZ_Spuller_Mirjam_2025.pdf 1 3B79C6B6406FE3BE47ED1F2B9EA4F745 2c97bddeb5e8f16681cb2f1bf0750b19f27fb77e7959fbeb0858877112893632 4f6c4f1d-1ab7-11f0-963a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=31838 Institut Jožef Stefan 0 0 0