Analysis of the Cutting Temperatures along the Macrostructure of a Directionally Solidified Al-7wt%Si Alloy

Abstract:

The aim of this research is to investigate the influence of solidification thermal parameters on the macrostructure of an Al-7wt%Si alloy during the horizontal directional solidification under unsteady-state heat flow conditions and its correlation with cutting temperatures. The solidification experiments were instrumented by thermocouples and an experimental approach was developed to quantitatively determine the solidification thermal parameters considered. The observation of the macrostructures has indicated that the columnar-to-equiaxed transition occurred in a sharp plane parallel to the chill wall and a higher average cutting temperature was obtained for the columnar structure.

• Periodical: Defect and Diffusion Forum (Volume 365)
• Pages: 116-121
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.365.116
• Online since: July 2015
• Authors: Adrina P. Silva*, I.R. Prado, J.S. Barros, C.A.P. Silva, A.L. Moreira, O.L. Rocha
• Keywords: Cutting Temperature, Macrostructure, Solidification

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