Influence of remelting on mechanical properties of AlSi9Cu3(Fe) alloy

Znanstveni rad - Prethodno/kratko priopćenje

• Autor: Zdenka Zovko Brodarac
• Autor: Davor Stanić
• Autor: Martin Folta
• Autor: Franjo Kozina
• Urednik: Eun Soo Park
• Autorova ustanova: Sveučilište u Zagrebu; Metalurški fakultet; (Zavod za procesnu metalurgiju); (Laboratorij za željezo, čelik i ljevarstvo)
• Znanstveno / umjetničko područje, polje i grana: TEHNIČKE ZNANOSTI; Metalurgija; Procesna metalurgija

Sažetak (engleski)

Conventional AlSi9Cu3(Fe) (EN AC 46000) alloy is the most common Al-alloy used in the automotive industry. Also, the high-pressure die-casting (HPDC) represents the most common process for this type of complex geometry and high performance castings due to economy and shortening of process cycle. The AlSi9Cu3(Fe) alloy enables achievement of relatively high mechanical properties, strength and hardness, excellent fluidity and resistance to hot cracking, although it shows slightly lower elongation and corrosion resistance. Usage of secondary charge material influences is cost-effective due to saving of raw materials and energy and reduction of pollution. The mechanical properties of aluminium cast alloys are strongly dependent from the microstructure which develops on the base of chemical composition, melt treatment, solidification rate, casting process and from potential heat treatment. This paper investigates the influence of remelted AlSi9Cu3(Fe) alloy on the mechanical properties in as-cast state, and after 4 and 80 weeks of natural aging. The metallographic analysis showed that the microstructure of such alloy does not deviate significantly from usual practice obtained by using 50 % or 100 % of returnable material. Mechanical properties investigation indicates degradation of the yield strength in as-cast state and after 4 weeks of natural aging, despite the same microstructure constituents. After 80 weeks, the effect of natural ageing led to the increase in yield strength and achievement of satisfactory mechanical properties.

• Ključne riječi (engleski): AlSi9Cu3(Fe) alloy, natural ageing, microstructure, mechanical properties
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Prethodno/kratko priopćenje
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov zbornika: 74th_WFC_E-Abstract_Book
• Izdanje: The World Foundry Organization, Korea Foundry Society
• Brojčani podaci: str. 1-2, 1-0437
• URN:NBN: urn:nbn:hr:115:003574
• Datum objave publikacije: 2022
• Projekt: Šifra: KK.01.1.1.02.0020; Naziv (hrvatski): Centar za ljevarstvo - SIMET; Naziv (engleski): Center for casting - SIMET; Kratica: SIMET; Voditelj: Zdenka Zovko Brodarac; Pravna nadležnost: Hrvatska; Financijer: Europska komisija; Linija financiranja: European Regional Development Fund
• Projekt: Šifra: KK.01.1.1.02.0022; Naziv (hrvatski): Virtulab – Integrirani laboratorij za primarne i sekundarne sirovine; Kratica: Virtulab; Voditelj: Sibila Borojević Šoštarić; Zdenka Zovko Brodarac (MF); Pravna nadležnost: Hrvatska; Financijer: Europska komisija; Linija financiranja: European Regional Development Fund
• Skup: Naziv: 74th World Foundry Congress: Cast the future; Kratica: WFC; Lokacija: Busan, Južna Koreja; Organizator: The World Foundry Organization, Korea Foundry Society; Datum početka: 2022-10-16; Datum završetka: 2022-10-20; Vrsta izlaganja: Pozvano predavanje
• Vrsta resursa: Tekst
• Izdavač: The World Foundry Organization, Korea Foundry Society
• Mjesto izdavanja: Busan, Južna Korea
• Prava pristupa: Zatvoreni pristup
• Datum i vrijeme pohrane: 2024-05-06 10:13:32