Naslov
Microstructure of the extruded aluminium AlSi9Cu3(Fe) machining chips reheated in the semisolid state

Autori
Krolo, Jure ; Dumanić, Ivana ; Jozić, Sonja ; Lela, Branimir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
"Mechanical Technologies and Structural Materials 2019” Conference Proceedings / Jozić, Sonja ; Lela, Branimir - Split : Hrvatsko društvo za strojarske tehnologije, 2019, 109-114

Skup
9th International Conference: Mechanical Technologies and Structural Materials (MTSM 2019)

Mjesto i datum
Split, Hrvatska, 26.09.2019. - 27.09.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Semisolid ; Microstructure ; Aluminium ; Machining chips ; Thixo feedstock ; Extrusion

Sažetak
The main aim of this research was to prepare quality thixo feedstock directly from aluminium alloy AlSi9Cu3(Fe) machining chips waste. The main condition to produce thixo feedstock is globular microstructure formation during heating at the semisolid range. Machining chips were cleaned, compacted and direct hot extruded in order to create dense compacted samples. After extrusion samples were heated at the semisolid range and hold for a different time in order to determine a suitable time for globular microstructure formation. After heating at semisolid range samples were quenched in the water to preserve obtained microstructure. Metallography analysis was performed. Conclusion indicated that homogeneously dispersed solid globular primary aluminium surrounded with liquid eutectic phases can be produced directly from aluminium machining chips waste. Such process could be beneficial for lower energy consumption, higher material yield and therefore reduction of the greenhouse gases into the atmosphere.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA