Mechanical Properties of Al-10 Mass % Si-Mg High-Pressure Die-Casting Alloy with Different Mg Content

Emi Yanagihara; Shin Orii; Suguru Takeda; Takuya Iketani; Seiji Saikawa; Kenji Matsuda; Kiyoshi Terayama; Susumu Ikeno

doi:10.4028/www.scientific.net/MSF.783-786.307

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Mechanical Properties of Al-10 Mass % Si-Mg High-Pressure Die-Casting Alloy with Different Mg Content
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HomeMaterials Science ForumMaterials Science Forum Vols. 783-786Mechanical Properties of Al-10 Mass % Si-Mg...

Mechanical Properties of Al-10 Mass % Si-Mg High-Pressure Die-Casting Alloy with Different Mg Content

Abstract:

The influence of Mg content on Al-10 mass % Si-0.05, 0.30 and 0.60 mass % Mg alloys castings were produced by high-pressure die-casting process, used by microstructure observation and evaluation of mechanical properties. With increasing Mg content, the main constituent phases (primary α-Al phase and eutectic phase) were not changed, but a small amount of phases crystallized at last stage of solidification (β-Al₅FeSi, π-Al₈Si₆Mg₃Fe and Mg₂Si) were changed in the kind and the volume. In the mechanical property, 0.2%PS and UTS were increased, elongation and absorbed energy were decreased with increasing Mg content or difference of heat treatment. Because the fracture mode in primary α-Al phase was changed from ductile to brittle by precipitation strengthening.

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Periodical:

Materials Science Forum (Volumes 783-786)

Pages:

307-312

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.783-786.307

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Online since:

May 2014

Authors:

Emi Yanagihara*, Shin Orii, Suguru Takeda, Takuya Iketani, Seiji Saikawa, Kenji Matsuda, Kiyoshi Terayama, Susumu Ikeno

Keywords:

High Pressure Die Casting (HPDC), Mechanical Property, Microstructure

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