Interrelation among Solidification Time, Undercooling, and Number of Graphite Nodules in Spheroidal Graphite Iron Casting Revealed by Numerical Simulation
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Accession number;05A0868215
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| Title;Interrelation among Solidification Time, Undercooling, and Number of Graphite Nodules in Spheroidal Graphite Iron Casting Revealed by Numerical Simulation |
| Author;
OWADANO TOSHIRO
(Kyushu Inst. Technol., JPN)
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Journal Title;Journal of Japan Foundry Engineering Society
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Journal Code:G0096A
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ISSN:1342-0429
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VOL.77;NO.10;PAGE.677-682(2005)
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| Figure&Table&Reference;FIG.10, TBL.2, REF.11 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;In the numerical simulation of the solidification of spheroidal graphite cast iron, it is taken that the diffusion controlled growth of eutectic cells liberates latent heat to raise solidification temperature, which is then lowered by the heat conduction from casting to mold. The results of simulation are summarized as follows: The cooling, curve shows the characteristics of solidification in spheroidal graphite cast iron, i. e. relatively large undercooling and recalescence followed by gradual temperature drop in the final stage. The number of graphite nodules in unit volume as well as the size and shape of casting, are decisive factors of undercooling in solidification, unless the mold material is altered. Numerical interrelation among the solidification time, undercooling, and number of graphite nodules was determined. (author abst.) |
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