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Metals 2016, 6(10), 251; doi:10.3390/met6100251

Effect of Mg17Al12 Fraction on Mechanical Properties of Mg-9%Al-1%Zn Cast Alloy

Department of Materials and Manufacturing, School of Engineering, Jönköping University, Casting, P.O. Box 1026, Jönköping SE-551 11, Sweden
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Academic Editor: Hugo F. Lopez
Received: 4 September 2016 / Revised: 4 October 2016 / Accepted: 18 October 2016 / Published: 24 October 2016
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Abstract

In the current study it was observed that the offset yield point of Mg-9%Al-1%Zn alloy was strongly influenced by the connectivity of Mg17Al12. It was suggested that an increase in the fraction of Mg17Al12 from 8% to 11% could lead to the formation of a Mg17Al12 network which resulted in a higher offset yield point. In addition, it was observed that elongation to failure of the Mg-9%Al-1%Zn alloy strongly depended on the fraction of Mg17Al12. Moreover, the apparent toughness showed a strong inverse relation to the secondary dendrite arm spacing. This approach might be extended to forecast the behavior in other magnesium alloys forming a network of the Mg-Al phase. View Full-Text
Keywords: casting; microstructure; tension test; magnesium alloys; mechanical properties casting; microstructure; tension test; magnesium alloys; mechanical properties
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Dini, H.; Andersson, N.-E.; Jarfors, A.E. Effect of Mg17Al12 Fraction on Mechanical Properties of Mg-9%Al-1%Zn Cast Alloy. Metals 2016, 6, 251.

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