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Inoculating Influence of Re-Carburizers in Grey Cast Iron

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Abstract:

In laboratory experiments Thermal Analysis data were recorded and different solidification parameters were identified to characterize the inoculation effect of the carbon materials (amorphous and crystalline structure) in low sulphur (<0.025 %S) grey cast iron. These parameters are linked to graphite morphology as well as chill formation in carburized cast irons. In low sulphur base iron the difference in inoculation efficiency between crystalline and amorphous carbon materials is limited. Secondary granular carbon materials, previously used as conductive or resistive media in electric graphitizing furnaces were found to be potential carbon raisers with visible inoculation effects in grey irons, especially those from a petroleum coke origin. A controlled presence of a low amount of SiC (2-3%) is effective, including low sulphur grey irons.

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Periodical:

Advanced Materials Research (Volume 23)

Pages:

287-290

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.23.287

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Online since:

October 2007

Authors:

Iulian Riposan, Mihai Chisamera, Stelian Stan, P. Toboc

Keywords:

Gray Iron, Inoculation Effects, Low Sulphur, Re-carburizers , Solidification Parameters

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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