Paper Title:
Modeling of Distribution of Visible and Non-Visible Graphite Nodules Embedded in the Surface Layer of Ductile Cast Iron
  Abstract

The graphite nodule count and size distribution are important structural parameters in the quantitative characterization of the microstructure of ductile cast irons. In several cases, it is observed that local surface damages (cracks or microchip formations) are generated by the final manufacturing process (superfinishing operation), and these defects are originated basically from the hidden (invisible) graphite nodules located directly below surface. Based on measured data obtained by an image analyzer, a stereological model and a simulation algorithm have been developed to analyse the correspondances between the graphite morphology and the defect formation. This method makes it possible to establish a correlation between the microstructure parameters and the occurrence of local surface defects on ductile cast iron components.

  Info
Periodical
Edited by
P. J. Szabó and T. Berecz
Pages
453-458
DOI
10.4028/www.scientific.net/MSF.659.453
Citation
T. Réti, M. Réger, Á. Csizmazia, I. Czinege, "Modeling of Distribution of Visible and Non-Visible Graphite Nodules Embedded in the Surface Layer of Ductile Cast Iron", Materials Science Forum, Vol. 659, pp. 453-458, 2010
Online since
September 2010
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