Prediction of Chill Formation in Gray Irons by Thermal Analysis

Sarum Boonmee; Kittirat Worakhut; Phanuphong Pheatphain; Panya Buahombura

doi:10.4028/www.scientific.net/KEM.845.87

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 845Prediction of Chill Formation in Gray Irons by...

Prediction of Chill Formation in Gray Irons by Thermal Analysis

Abstract:

In this study, a thermal analysis (TA) system was modified to have dual sampling cups which allowed the simultaneous pouring and data collecting. The two types of cups used were i) tellurium-containing cup and ii) non-tellurium cup. The tellurium addition ensured the iron carbide formation which gave the metastable eutectic temperature of the melts. The data were analyzed simultaneously for differences between the cooling curves. It was found that silicon increased the differences between the cooling curves (e.g. increased the ΔT_EU, ΔT_ER and ΔT_S). Both clear chill depth and total chill depth decreased with increasing silicon. Inequalities for the prediction of chill formation was proposed.

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Periodical:

Key Engineering Materials (Volume 845)

Pages:

87-93

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.845.87

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Online since:

May 2020

Authors:

Sarum Boonmee*, Kittirat Worakhut, Phanuphong Pheatphain, Panya Buahombura

Keywords:

Chill Formation, Chilling Tendency, Cooling Curves, Gray Irons, Solidification, Thermal Analysis

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References

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