Solidification sequence of ductile cast iron - In-situ observation and modeling

Hideyuki Yasuda, Akira Sugiyama, Tomoya Nagira, Kohei Morishita, Masato Yoshiya, Tomohiro Nishimura, Koshiro Yamane

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


Radiography was performed to examine solidification and melting behaviors in hypereutectic cast iron specimens with / without Mg addition. The specimens without Mg addition showed that graphite particles exhibited spherical shape at the beginning and then transformed to the flake-like shape. Growth of γ-Fe dendrites was followed by nucleation of graphite particles ahead of the eutectic front. In contrast, growth of graphite particles and γ-Fe dendrites occurred nearly at the same time in the specimens with Mg addition and the spherical graphite particles were engulfed by γ-Fe or eutectic. The addition of 0.05mass%Mg significantly reduced the temperature range in which the graphite particles grew as the primary phase. Image-based analysis of melting behavior clearly proved that even 0.05mass% addition modified the phase equilibrium of the liquid, γ-Fe and graphite phases.

Original languageEnglish
Title of host publication72nd World Foundry Congress, WFC 2016
PublisherThe WFO (The World Foundry Organization Ltd)
Number of pages2
ISBN (Electronic)9781510833128
Publication statusPublished - 2016
Externally publishedYes
Event72nd World Foundry Congress, WFC 2016 - Nagoya, Japan
Duration: May 21 2016May 25 2016

Publication series

Name72nd World Foundry Congress, WFC 2016


Other72nd World Foundry Congress, WFC 2016

All Science Journal Classification (ASJC) codes

  • Materials Chemistry
  • Metals and Alloys


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