Naslov
The effects of casting section size and metallic charge materials on microstructure of ductile iron

Autori
Stojaković, Ana ; Glavaš, Zoran ; Unkić, Faruk ; Terzić, Katarina

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

Izvornik
Zbornik savjetovanja o materijalima, tehnologijama, trenju i trošenju, MATRIB 2011 / Schauperl, Zdravko ; Šolić, Sanja - Zagreb : Hrvatsko društvo za materijale i tribologiju (HDMT), 2011, 457-470

ISBN
978-953-7040-19-2

Skup
Savjetovanje o materijalima, tehnologijama, trenju i trošenju, MATRIB 2011

Mjesto i datum
Vela Luka, Hrvatska, 29.06.2011. - 01.07.2011

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ductile iron ; casting section thickness ; metallic charge materials ; microstructure

Sažetak
The influences of different casting section thicknesses (sizes) (6, 3 mm, 12, 7 mm, 25, 4 mm and 38, 1 mm) and the pig iron, steel scrap and ductile iron returns content in metallic charge on the microstructure of ductile iron were analyzed in this paper. It was found that the nodule count, nodularity and pearlite content increases with the decrease of the casting section thickness, due to increase of the cooling rate. As the casting section thickness was increased, the ferrite content and the size of graphite nodules were increased, and the nodule count, nodularity and pearlite content were decreased. The obtained results confirmed the beneficial effect of pig iron addition on the nucleation potential of ductile iron producing an increase of nodule count and nodularity in all casting section sizes. The use of high percentage of steel scrap and ductile iron returns in the metallic charge was resulted in decreasing of nucleation potential, nodule count and nodularity.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA