Effect of Mold Material on Cooling Curves of Aluminum during Solidification

The effect of cooling rate on the as-cast structure, cooling curve, and solidification time of aluminum was studied. For this purpose, metallic, green sand, and phenolic resin molds were considered. K-type thermocouple was inserted in the middle cross section of each mold and the continuous cooling curves from the pouring temperature were recorded using an accurate data acquisition system. It was revealed that by decreasing the cooling rate, the solidification time increases significantly and the columnar grains become coarser. Subsequently the Chvorinov Rule was used to rationalize the solidification behavior and it was revealed that the mold constant decreases with increasing cooling rate.

Effect of Mold Material on Cooling Curves of Aluminum during Solidification Keywords:

Aluminum , Solidification , continuous cooling curves , Chvorinov Rule

Effect of Mold Material on Cooling Curves of Aluminum during Solidification authors

Zahra Fallahi

B.Sc. Student- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

Hanie Yegane

B.Sc. Student- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

Mehdi Malekan

Associate Professor- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

Hamed Mirzadeh

Associate Professor- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

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Link to this Paper:

https://civilica.com/doc/842061

Document National Code:

IMES12_303

Index date: 1 May 2019

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Fallahi, Zahra and Yegane, Hanie and Malekan, Mehdi and Mirzadeh, Hamed,1397,Effect of Mold Material on Cooling Curves of Aluminum during Solidification,7th International Conference on Materials and Metallurgical Engineering (iMat 2018),Tehran,https://civilica.com/doc/842061

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Ranking of University of Tehran

Type of center: دانشگاه دولتی

Paper count: 116,262

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