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Magnesium Technology 2017 pp 289–295Cite as

Microstructure and Mechanical Properties of High Pressure Die Cast Mg–Al–Sn–Si Alloys

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Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

Abstract

The effect of a small addition of silicon (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 which was not possible with conventional high pressure die casting (HPDC). 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. Artificial 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.

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Acknowledgements

The authors would like to acknowledge Shanghai Jiao Tong University and General Motors for the production of the samples used in this study and the collaboration with General Motors and Meridian Lightweight Technologies, especially the many helpful discussions with Drs. Jon Carter and Anil Sachdev of GM R&D Center.

This material is based upon work supported by the United States Department of Energy under Award Number DEEE005753 to GM and a sub-award to The Ohio State University. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, 43210, USA

    Andrew D. Klarner, Weihua Sun, Jiashi Miao & Alan A. Luo

  2. Department of Integrated Systems Engineering, The Ohio State University, Columbus, OH, 43210, USA

    Alan A. Luo

Authors
  1. Andrew D. Klarner
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  2. Weihua Sun
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  3. Jiashi Miao
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  4. Alan A. Luo
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Corresponding author

Correspondence to Andrew D. Klarner .

Editor information

Editors and Affiliations

  1. Arizona State University , Tempe, Arizona, USA

    Kiran N. Solanki

  2. Lund University , Lund, Skåne Län, Sweden

    Dmytro Orlov

  3. Structural Materials Unit, National Inst for Materials Sci Structural Materials Unit, Tsukuba, Ibaraki, Japan

    Alok Singh

  4. IND LLC , South Jordan, Utah, USA

    Neale R. Neelameggham

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© 2017 The Minerals, Metals & Materials Society

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Klarner, A.D., Sun, W., Miao, J., Luo, A.A. (2017). Microstructure and Mechanical Properties of High Pressure Die Cast Mg–Al–Sn–Si Alloys. In: Solanki, K., Orlov, D., Singh, A., Neelameggham, N. (eds) Magnesium Technology 2017. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-52392-7_42

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