20.500.12556/DiRROS-22974 Comparative study of microstructural influence on corrosion resistance in conventional and Al-Mn quasicrystalline cast aluminum alloys The investigation focused on the quasicrystalline aluminum alloy Al-Mn-Cu-Mg-Si-Ti. The influence of microstructure of aluminum alloy strengthened with quasicrystals on its corrosion resistance was studied. The properties of newly designed quasicrystalline aluminum alloy (QC) were compared to the properties of standard AlSi9Cu3 alloy (DIN 226). Both aluminum alloys (QC and AlSi9Cu3) were cast in a steel die with a controlled cooling rate. After the preparation of the samples, the microstructural characterization was carried out. In the quasicrystalline alloy, the microstructure was dominated by a primary phase with fivefold symmetry, representing the quasicrystalline phase. To investigate corrosion properties, open-circuit potential, linear polarization and potentiodynamic polarization measurements were performed. The influence of corrosion on mechanical properties was studied by conducting tensile tests on environmentally exposed alloys. It was concluded that the quasicrystalline alloy has comparable corrosion properties to the commercially widely used AlSi9Cu3 alloy. In the latter alloy, corrosion was observed to initiate in the vicinity of the Al2Cu intermetallic compound particles. In the case of the QC alloy, corrosion attacked mainly the αAl phase (matrix). quasicrystals corrosion aluminum alloys microstructure electrochemical measurements kvazikristali korozija lesno inženirstvo aluminijeve zlitine elektrokemijske meritve true false true Kluwer Angleški jezik Slovenski jezik © The Author(s), 2025 Neznano 2025-07-14 11:47:36 2025-07-14 11:55:15 2025-10-24 03:52:51 0000-00-00 00:00:00 2025 0 0 str. 11517-11528 vol. 60 Jun. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-06-30 544.5/.6 1573-4803 10.1007/s10853-025-11046-7 241070851 https://link.springer.com/article/10.1007/s10853-025-11046-7 1 9416b0fa-6097-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33579 RAZ_Bajt_Leban_Mirjam_2025.pdf RAZ_Bajt_Leban_Mirjam_2025.pdf 1 4BA3040C1EB48D6AE625D28B2C0790C6 99ee28a18a33a2a5cf5f7facf5fc8aef69bac62101209f4d4ccea515c43d9786 97254d59-6098-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33580 RAZ_Bajt_Leban_Mirjam_2025.docx RAZ_Bajt_Leban_Mirjam_2025.docx 1 4AAA072A4E546E86FFB5BD0F55844366 d3505e36c52c102c6b6f34218f9bad632f5da9427f515ae9b18e222a02f95091 9f7b2cff-6098-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33581 Zavod za gradbeništvo Slovenije 0 0 0