Pregled bibliografske jedinice broj: 153899
Utjecaj sadržaja silicija na mikrostrukturu i mehanička svojstva lijevanog željeza s kuglastim grafitom EN-GJS-400-18-LT
Utjecaj sadržaja silicija na mikrostrukturu i mehanička svojstva lijevanog željeza s kuglastim grafitom EN-GJS-400-18-LT // 66th World Foundry Congress, Proceedings, vol.2, Casting Technology 5000 Years and Beyond / Kayali, Sabri E. (ur.).
Istanbul: Foundrymen`s Association of Turkey, 2004. str. 929-940 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), stručni)
CROSBI ID: 153899 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Utjecaj sadržaja silicija na mikrostrukturu i mehanička svojstva lijevanog željeza s kuglastim grafitom EN-GJS-400-18-LT
(EFFECT OF SILICON CONTENT ON MICROSTRUCTURES AND MECHANICAL PROPERTIES OF SPHEROIDAL GRAPHITE CAST IRON GRADE EN-GJS-400-18-LT)
Autori
Unkić, Faruk ; Gavranović, Nediljko ; Vasilić, Milorad ; Hren, Smiljan
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), stručni
Izvornik
66th World Foundry Congress, Proceedings, vol.2, Casting Technology 5000 Years and Beyond
/ Kayali, Sabri E. - Istanbul : Foundrymen`s Association of Turkey, 2004, 929-940
Skup
66th World Foundry Congress, Casting Technology 5000 Years and Beyond
Mjesto i datum
Istanbul, Turska, 06.09.2004. - 09.09.2004
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
lijevano željezo s kuglastim grafitom; utjecaj silicija; mikrostruktura; mehanička svojstva
(Speroidal cast iron; silicon effect; microstructure; mechanical properties)
Sažetak
An investigation on speroidal cast iron grade EN-GJS-400-18-LT was performed on the shop floor in real conditions. The relationship between production parameters and realized mechanical properties was determined by examination of chemical compositions of the treated melts, inspection of microstructure in as-cast and heat treated conditions and finally by assessment of impact energy, hardness and tensile properties of heats. The presence of manganese and other pearlite forming elements, and low nodule count prevented the formation of as-cast fully ferritic matrix in the samples even with silicon content over 3.0 %. Increase in silicon content, in examined range from 2.0 % to 3.0 %, cause a mildly reduce of hardness and tensile strength in as-cast samples, yield strength stands unchanged, while elongations values progressively rose. The effect of silicon content variation on tensile strength and hardness in heat treated samples is quite opposite, which can be attributed to ferrite strengthening by silicon. Probability of attaining the specified values of impact toughness, tested at -20°C, was increased by ferritizing annealing treatment of the samples and limiting of final silicon content in the nodular cast iron below 2.5 %.
Izvorni jezik
Engleski
Znanstvena područja
Metalurgija
