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Mechanical Properties of Energy Absorbing Magnesium Alloys
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Abstract
The development of commercial magnesium die casting alloys has progressed over the past several decades. The most common die casting alloy, AZ91D with 9% aluminum content, has been and still is used in many structural automotive applications.
New magnesium alloys have been developed in the past several years to meet the needs of structural applications that require an appreciable amount of energy absorption during service. Magnesium alloys having lower aluminum content, such as AM50 and AM20, were developed by Norsk Hydro and found to be more ductile, especially during impact situations. Their immediate use was focused towards applications such as automotive seat frames and instrument panel/cross-car beams.
This paper provides mechanical property data on the “AM-Type” magnesium alloys. These alloys consist primarily of aluminum and manganese additions to magnesium to increase the energy absorption attributes of the base metal.
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Citation
Aune, T., Westengen, H., and Ruden, T., "Mechanical Properties of Energy Absorbing Magnesium Alloys," SAE Technical Paper 930418, 1993, https://doi.org/10.4271/930418.Also In
References
- Aune T.Kr. Westengen H. “Mechanical Properties of High Pressure Die Cast Mg-Alloys” The International Conference on Magnesium Alloys and their Applications Garmisch Partenkirchen, Germany April 1992
- Aune T.Kr. Albright D. L. Westengen H. “Properties of Die Cast Magnesium Alloys of Varying Aluminum Content” SAE Technical Paper # 900792 February 1990
- Dieter G. E. “Mechanical Metallurgy” McGraw Hill, NY 1986 283
- Drouzy M. et al. “Interpretation of Tensile Results by Means of Quality Index and Probable Yield Stress” Aft Int. Cast Met. Journal 5 2 1980 43 50
- Aune T.Kr. “Heat Treatment of Cold Chamber-Die Cast Magnesium Alloy AZ91” Norsk Hydro Internal Report February 26 1991