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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Magnesium Technology 2017
Presentation Title Microstructure and Mechanical Properties of High Pressure Die Cast Mg-Al-Sn-Si Alloys
Author(s) Andrew D Klarner, Weihua Sun, Jiashi Miao, Alan A Luo
On-Site Speaker (Planned) Andrew D Klarner
Abstract Scope The effect of a small addition of Si was studied to increase the mechanical properties of Mg-Al-Sn alloys. Test specimens were produced by a vacuum die casting process which makes it possible to perform various heat treatments on the alloy. The addition of Si leads to the formation of a binary Mg2Si phase which contributes to an increase in strength in the as-cast condition. Aging treatments were performed to further increase the strength of the alloys by precipitation of fine Mg2Sn, Mg2Si, and Mg17Al12 phases. Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques were used to observe these fine precipitates at different stages of the heat treatment and mechanical testing was performed to compare strength and ductility to previous magnesium alloys.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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Ductility Enhancement in Mg Alloys by Anisotropy Engineering
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Effects of Gadolinium and Neodymium Addition on Young’s Modulus of Magnesium-based Binary Alloys
Effects of Mn and Zn Solutes on Grain Refinement of Commercial Pure Magnesium
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I-25: Characterization of Ultrafine Grained WE43 Magnesium Alloy by Equal-channel Angular Pressing and High Pressure Torsion Process
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I-27: Damage and Fracture in Magnesium AZ31, Experiments and Modeling
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I-29: Effects of Alloying Elements on Mechanical and Corrosion Properties of Extruded Mg-Al-Ca Alloys
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I-34: Hot Blank – Cold Die (HB-CD) Stamping of Magnesium Alloy Sheets _ Material Characterization and Modeling
I-35: Hydrogen Uptake by Magnesium Alloys during Aqueous Corrosion
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