Effects of Sr Addition on Mechanical Properties and Microstructure of Mg-6Al Magnesium Alloy

Abstract:

The effects of Sr addition on the mechanical properties and microstructure of Mg-6Al mag- nesium alloy both at 25 °C and at 175 °C were investigated by means of OM, SEM and EDS and XRD. Upon the Sr addition of 2%, the tensile strength was increased by 7.2% to 184.4MPa at 25 °C, while it was increased by 30% to 155.4MPa at 175 °C. The strengthening mechanism of Mg-6Al-xSr at lower temperature (25 °C) was different from that at higher temperature (175°C). The results show that the addition of strontium effectively improved the microstructure and mechanical properties of magnesium alloy.

• Periodical: Materials Science Forum (Volume 686)
• Pages: 120-124
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.686.120
• Online since: June 2011
• Authors: Jin Ping Fan, She Bin Wang, Bing She Xu
• Keywords: Magnesium Alloy, Microstructure, SR

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