Naslov
INTERACTION BETWEEN MOLTEN ALUMINIUM AND HOT- WORKING TOOL STEEL

Autori
Medver, Jožef ; Medved, Kores, Stanislav, Dolić, Natalija, Vončina, Maja

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

Izvornik
Proceedings Book of 18th International Foundymen Conference - Coexistence of material science and sustainable technology in economic growth / Dolić, Natalija ; Zovko Brodarac, Zdenka ; Begić Hadžipašić, Anita - Sisak, 2019, 45-56

ISBN
978-953-7082-34-5

Skup
18. Međunarodno savjetovanje ljevača "Suživot znanosti o materijalima i održive tehnologije u gospodarskom rastu" = 18th International Foundryman Conference "Coexistence of material science and sustainable technology in economic growth"

Mjesto i datum
Sisak, Hrvatska, 15.05.2019. - 17.05.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
interaction tool steel/molten aluminium, intermetallic phases from system Al-Fe

Sažetak
Hot-working tool steels are essential for production and processing of aluminium and aluminium alloys. The interaction between molten aluminium and hot-working tool steel is a result of chemical reaction at a phase boundary solid/liquid, causing the formation of intermetallic compounds. The consequence of molten aluminium flow along the tool surface is erosion or mechanical wear. In order to increase the lifetime of the tool it is necessary to examine and limit the interaction between tool steel and molten aluminium. A laboratory device was designed to determine the interaction between tool steel and metallic melts. The experiments were carried out in melt of primary aluminium (purity of 99.7 mass %) and, for the comparison, in aluminium alloy AlSi12 at the temperature of 670 °C and 700 °C at 75 rpm and 150 rpm. The result of the interaction is the growth of a reaction layer, which is formed from intermetallic phases from system Al-Fe. It could be concluded that following parameters: temperature of the melt, the speed of rotating sample (rpm) and experiment duration time, have an impact on the wear of tool steel. Taking the results into consideration an interaction model between hot-working tool steel and molten aluminium was created.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA