2006•Nonferrous Metals ProcessingRequires access

Effect of RE Modification and Heat treatment on Mechanical Properties of Hypereutectic Al-0.6Mg-18Si Alloy

Kai Xu

Abstract

The effect of RE modification and heat treatment on the microstructure and mechanical properties of hypereutectic Al-0.6Mg- 18Si alloy is studied.The microstructures of the alloy at different tempers are observed by SEM and optical microscope,and the mechanical properties tested.The results show that combination of rare earth modification and heat treatment is an effective way to improve the structural morphology of the hypereutectic Al-0.6Mg-18Si casting alloy and increase its mechanical properties.

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Key concepts: Alloy, Microstructure, Materials science, Metallurgy, Optical microscope, Casting, Composite material, Scanning electron microscope