Naslov
The influence of microstructural characteristics and temperatures on the toughness of ferritic ductile iron

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

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

Izvornik
Conference Proceedings of International 49th Foundry Conference Portorož 2009 / - Ljubljana : Slovenian Foundrymen Society, 2009, 1-13

ISBN
978-961-90130-4-5

Skup
International 49th Foundry Conference Portorož 2009

Mjesto i datum
Portorož, Slovenija, 09.09.2009. - 11.09.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
ductile iron ; microstructure properties ; temperature ; toughness

Sažetak
The influence of microstructural characteristics and temperatures on the as-cast ferritic ductile iron toughness was analyzed in this paper. The toughness of ductile iron samples in as-cast condition was examined by Charpy method at room temperature (20°C) and low temperatures (0°C, -20°C, -40°C) according to EN 10045-1. It was found that the toughness of ferritic ductile iron increases with the increase of the amount of ferrite in the metal matrix at all testing temperatures. As the nodularity increases, the toughness of ferritic ductile iron increases at 20°C, 0°C and -20°C. At -40°C there is no correlation between toughness and nodularity due to the dominant influence of metal matrix. At 20°C and 0°C the ferritic ductile iron toughness increases with the increase of the nodule count to the certain maximum, afterwards the further increase of nodule count results in decreasing of toughness. At low temperatures (-20°C and -40°C), the ferritic ductile iron toughness constantly increases with increase of nodule count. In order to achieve optimal performance, a microstructural characteristics of ductile iron castings need to be adapted to specific working conditions.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA