Naslov
Utjecaj primarnih mikrostrukturnih značajki na udarnu žilavost nodularnog lijeva klase EN-GJS-400-18-LT
(Influence of The As-Cast Microstructure Characteristics on Impact Toughness of Ductile Cast Iron Grade EN-GJS-400-18-LT)

Autori
Unkić, Faruk ; Matković, Prošper ; Matković, Tanja ; Zovko, Zdenka

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

Izvornik
6. savjetovanje o materijalima, tehnologijama, trenju i trošenju (MATRIB 2001) zbornik radova = Conference proceedings / Grilec, krešimir - Zagreb : Hrvatsko društvo za materijale i tribologiju (HDMT), 2001, 283-288

ISBN
953-96038-7-0

Skup
Savjetovanje o materijalima, tehnologijama, trenju i trošenju (6 ; 2001)

Mjesto i datum
Vela Luka, Hrvatska, 20.06.2001. - 22.06.2001

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
ductile cast iron; impact toughness; microstructure characteristics; as-cast condition

Sažetak
The effects of chemical composition (silicon content) and as-cast microstructure characteristics on impact toughness of ductile iron grade EN-GJS-400-18-LT were studied. The presence of manganese and other pearlite forming elements and the low nodule count prevented formation of a fully ferritic structure even at 3.2% silicon content. The relationship between the notched impact toughness at – 20 °C and silicon content indicated that the impact toughness values were below that prescribed by EN 1563. Optimal toughness at about 40 % pearlite in as-cast condition was result of higher content of pearlite stabilizing elements or low nodule count, as well as higher silicon addition, which reduces pearlite content but increase the ductile to brittle transition temperature – thereby producing the embritteling effect.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA