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A Possible Mechanism for the Formation of Exploded Graphite in Nodular Cast Irons

Ghergu, Roxana and Magnusson Åberg, Lena and Lacaze, Jacques A Possible Mechanism for the Formation of Exploded Graphite in Nodular Cast Irons. (2014) Materials Science Forum, 790-791. 435-440. ISSN 0255-5476

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Official URL: http://dx.doi.org/10.4028/www.scientific.net/MSF.790-791.435


In hypereutectic nodular cast irons, primary precipitation of graphite may lead to graphite flotation in thick section castings. Graphite degeneracy such as so-called exploded graphite is then often associated with this flotation phenomenon and it appears as precipitates where the nodular form is replaced by star-like or flower-like shape. It has been reported that exploded graphite develops after the primary spheroidal nodules have reached some tens of microns in diameter. In this contribution, a model for this transition is presented.

Item Type:Article
Additional Information:Thanks to Trans Tech Publications editor. The definitive version is available at http://www.scientific.net/MSF.790-791.435
HAL Id:hal-01170515
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > ELKEM (NORWAY)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Deposited On:01 Jul 2015 14:22

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