The impact of small Zr addition to Al–Ni cast alloy for elevated temperature applications

Šmalc, Jan (avtor), Zaky, Adam (avtor), Markoli, Boštjan (avtor), Šturm, Roman (avtor)

Most aluminium casting alloys are based on the eutectic system Al–Si, which has weak thermal properties. Alloys from the eutectic Al–Ni system on the other hand have higher thermal stability and good casting properties and are therefore promising for casting applications. Using casting simulations, a copper mold was designed to achieve cooling rates above 100 K/s with the aim of producing a Zr-rich supersaturated solid solution. Microstructural analysis revealed that the addition of Zr leads to notable changes in the microstructure characterised by the formation of primary Al3Zr and αAl dendrites. Subsequent heat treatment revealed that Zr-enriched alloys undergo significant age hardening, which showed an improvement in microhardness due to effective Al3Zr precipitation.

• Jezik: Angleški jezik
• Ključne besede: aluminium alloys, ulivanje, evtektik aluminij-nikelj, cirkonij, mikrotrdota
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo ; NTF - Naravoslovnotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2024
• Št. strani: Str. 1928-1936
• Številčenje: Vol. 32
• PID: 20.500.12556/RUL-160372
• UDK: 620.1
• ISSN pri članku: 2238-7854
• DOI: 10.1016/j.jmrt.2024.08.029
• COBISS.SI-ID: 205386755
• Datum objave v RUL: 27.08.2024

Gradivo je del revije

• Naslov: Journal of Materials Research and Technology
• Skrajšan naslov: J. Mater. Res. Technol.
• Založnik: Elsevier
• ISSN: 2238-7854
• COBISS.SI-ID: 519699737

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: aluminijeve zlitine, casting, aluminium-nickel eutectic, zirconium, microhardness

Projekti

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: P2-0270
• Naslov: Proizvodni sistemi, laserske tehnologije in spajanje materialov