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Effect of antimony on the eutectic reaction of heavy section spheroidal graphite castings

Larrañaga, Peio and Asenjo, Iker and Sertucha, Jon and Suarez, Ramon and Ferrer, Inaki and Lacaze, Jacques Effect of antimony on the eutectic reaction of heavy section spheroidal graphite castings. (2008) International Journal of Cast Metals Research, The, 22 (1-4). 192-195. ISSN 1364-0461

(Document in English)

PDF ( Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader

Official URL: http://dx.doi.org/10.1179/136404609X367669


There is a strong demand for heavy section castings made of spheroidal graphite with a fully ferritic matrix, e.g. for manufacturing hubs for windmills. Such castings with slow solidification process are prone to graphite degeneration that leads to a dramatic decrease of the mechanical properties of the cast parts. Chunky graphite is certainly the most difficult case of graphite degeneracy, though it has long been known that the limited and controlled addition of antimony may help eliminate it. The drawback of this remedy is that too large Sb additions lead to other forms of degenerate graphite, and also that antimony is a pearlite promoter. As part of an investigation aimed at mastering low level additions to cast iron melts before casting, solidification of large blocks with or without Sb added was followed by thermal analysis. Comparison of the cooling curves and of the microstructures of these different castings gives suggestions to understand the controlling nucleation and growth mechanisms for chunky graphite cells.

Item Type:Article
Additional Information:Thanks to Maney Publishing editor. The definitive version is available at http://www.maney.co.uk/ The original PDF of the article can be found at The International Journal of Cast Metals Research website : http://www.ingentaconnect.com/content/maney/ijcmr/2009/00000022/F0040001/art00047
HAL Id:hal-03574643
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > IK4 - Azterlan - Centro de Investigación Metalúrgica (SPAIN)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > TS Fundiciones (SPAIN)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Deposited On:19 Jan 2011 14:49

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