20.500.12556/RUL-178822 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 Al$_2$Cu intermetallic compound particles. In the case of the QC alloy, corrosion attacked mainly the α$_{Al}$ phase (matrix). quasicrystals corrosion aluminum alloys microstructure electrochemical measurements kvazikristali korozija lesno inženirstvo aluminijeve zlitine elektrokemijske meritve true false true Angleški jezik Slovenski jezik Članek v reviji 2026-01-30 09:49:08 2026-01-30 09:49:11 2026-02-01 04:37:57 0000-00-00 00:00:00 2025 0 0 Str. 11517–11528 iss. 27 Vol. 60 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 544.5/.6 1573-4803 10.1007/s10853-025-11046-7 241070851 s10853-025-11046-7.pdf s10853-025-11046-7.pdf 1 4A28C91DCCD4641B223F5749E4B03780 ead66629271c6bc168be9e13d09253f0b42fd43b07ca43f2d152e34a0144d1e2 e5409e1f-fdb8-11f0-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=226817 https://link.springer.com/article/10.1007/s10853-025-11046-7 1 8274cb12-fdb8-11f0-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=226816 Naravoslovnotehniška fakulteta 0 0 0