The Character of the Solidification Structure of Massive Ductile Cast-Iron Castings and its Prediction


Article Preview

An original three-dimensional (3D) model of solidification is used to describe the process of solidification and cooling of massive 500x1000x500 mm cast-iron castings in sand moulds. The calculated model of the kinetics of the temperature field of the casting is verified during casting with temperature measurements in selected points. The following dependences are later determined according to the experimental and calculated data: the average size of the graphite spheroids rg, graphite cells Rb and the average distances among the particles of graphite Lg – always as a function of the local solidification time θ [xi, yi, zi]. Furthermore, it has been found that the given basic characteristics of the structure of the cast-iron (rg, Rb and Lg) are a linear function of the logarithm of the local solidification time θ. The original spatial model of solidification can therefore be used in its first approximation for the assessment of the pouring structure of massive cast-iron castings.



Materials Science Forum (Volumes 567-568)

Edited by:

Pavel Šandera




K. Stránský et al., "The Character of the Solidification Structure of Massive Ductile Cast-Iron Castings and its Prediction", Materials Science Forum, Vols. 567-568, pp. 109-112, 2008

Online since:

December 2007




[1] Kavicka, F. et al.: Optimization of the properties and the technology of the production of massive cast-iron castings. Final Research Report for the GAČR Project No. 106/01/1164. VUT-FSI, Institute of Power Engineering, Brno 2003, 68 pages.

[2] Stetina, J., Ramik, P., Heger, J., Dobrovska, J. and Sekanina, B.: The Numerical and Experimental Investigation of a Concasting Process, The Book of Abstracts of the ASME/JSME Thermal Engineering Joint Conference, Kohala Coast, Hawaii USA, March 2003, p.103.

DOI: 10.1115/ajtec2011-44058

[3] Askeland, D.R. - Phulé, P.P.: The Science and Engineering of Materials. 5th Edition, Nelson, a division of Thomson, Canada Limited 2006, 863 pages.

[4] Belko, J. and Stransky, K.: Analysing Graphite in Cast-iron. Research Report (611-57, 811- 28) VTUO Brno, Brno, November (2002).

[5] Winkler, Z. and Stransky, K.: Heterogeneity of the Compositions of Elements in Ductile Castiron Castings. Research Report (811-11-02) VTÚO Brno, Brno, December (2002).

Fetching data from Crossref.
This may take some time to load.