Comparative study of microstructural influence on corrosion resistance in conventional and Al-Mn quasicrystalline cast aluminum alloys

Bajt Leban, Mirjam (avtor), Drevenšek, Tim (avtor), Kosec, Tadeja (avtor), Leskovar, Blaž (avtor), Markoli, Boštjan (avtor)

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).

• Jezik: Angleški jezik
• Ključne besede: quasicrystals, corrosion, aluminum alloys, microstructure, electrochemical measurements
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: NTF - Naravoslovnotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: Str. 11517–11528
• Številčenje: Vol. 60, iss. 27
• PID: 20.500.12556/RUL-178822
• UDK: 544.5/.6
• ISSN pri članku: 1573-4803
• DOI: 10.1007/s10853-025-11046-7
• COBISS.SI-ID: 241070851
• Datum objave v RUL: 30.01.2026

Gradivo je del revije

• Naslov: Journal of materials science
• Skrajšan naslov: J. mater. sci.
• Založnik: Springer Nature
• ISSN: 1573-4803
• COBISS.SI-ID: 513194009

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: kvazikristali, korozija, lesno inženirstvo, aluminijeve zlitine, elektrokemijske meritve

Projekti

• Financer: EC - European Commission
• Program financ.: HE, EIT RawMaterials
• Številka projekta: 21128
• Naslov: A novel cast ultra-high-specific strength quasicrystal aluminum alloy
• Akronim: CastQC

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0273
• Naslov: Gradbeni objekti in materiali