Melt Shearing Process for Recycling of Iron Contaminated Al-Si Alloy by Modification of Harmful Morphology of Intermetallics

Bong Hwan Kim; Sang Mok Lee

doi:10.4028/www.scientific.net/AMR.421.160

Paper Titles

Development and Application of Advanced Coiling Temperature Control System in Hot Strip Mill
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Design of a Tribo-Simulator for the High Strength Steel Friction and Wear Investigation in Hot Stamping
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Calculation of Melting Curve of Aluminum under Pressure through Molecular Dynamics Simulations
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Fire Hazard Research of Aluminum Cable Joint
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Melt Shearing Process for Recycling of Iron Contaminated Al-Si Alloy by Modification of Harmful Morphology of Intermetallics
p.160

Development of Software for Calculating Temperature Field by FEM Simulation to Hot Strip Mill
p.164

Molten Region around the Cavity Generated by a Moving Electron Beam
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Effect of Solution Treatment on the Microstructure and Reverse Martensitic Transformation Behavior of a Novel Porous CuAlMn Shape Memory Alloy
p.173

Minimum Mould Exit Shell Thickness of Round Blooms for Peritectic Steel Casting
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Melt Shearing Process for Recycling of Iron Contaminated Al-Si Alloy by Modification of Harmful Morphology of Intermetallics

Abstract:

This study aims to investigate the effects of mechanical melt-shearing treatment during casting process on the morphological change of iron-containing intermetallic phases formed in the high-iron bearing Al-Si casting alloys. The process parameters of the melt-shearing treatment were controlled and optimized in order to modify the needle-like shape of the iron-containing intermetallic into a less harmful form. Throughout this study, it was found that the melt-shearing treatment shortened effectively the length of the needle-shaped iron-containing intermetallic phase in the Al-Si alloys. It was also confirmed that these modified morphology and microstructures result in the improvement of mechanical properties.