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A study on ductile iron production without the use of feeders
RISE, Swerea, SWECAST.
2013 (English)In: Foundry Trade Journal International, ISSN 1758-9789, Vol. 187, no 3702, p. 60-62Article in journal (Refereed) Published
Abstract [en]

This paper investigates the effects of graphite added as a conditioner, of lanthanum containing nodulariser and of pouring temperature on the formation of shrinkage porosity in ductile iron casting with a eutectic composition. In this experiment for each heat the cooling curves were recorded by the use of Quick-Cups (thermal analysis cups) and different solidification parameters such as TElow, GRF1, GRF2 and TS were calculated and compared with the porosity which was found from the microstructure examination. The results show that there is a good correlation between the amount of the shrinkage formation and the thermal analysis values. Also this experiment confirms that by using certain treating elements and pouring temperature which was between 1340-1350°C it is possible to eliminate the shrinkage defects in ductile iron castings without using feeders.

Place, publisher, year, edition, pages
2013. Vol. 187, no 3702, p. 60-62
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40951Scopus ID: 2-s2.0-84875992300OAI: oai:DiVA.org:ri-40951DiVA, id: diva2:1376936
Available from: 2019-12-10 Created: 2019-12-10 Last updated: 2019-12-10Bibliographically approved

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