A Research on the Influence of Sr/Al Ratio on Microstructure of Mg-Al-Sr Alloy
Four kinds of Mg-Al-Sr alloys of Sr/Al mass ratio between 0.0～1.0 were made in the vacuum resistor furnace. The effect and effect mechanical of the ratio on phase and microstructure were studied by OM, XRD, SEM and EDS and DTA. Results showed that metallographic images of alloys changed and the microstructures were refined with different Sr/Al ratio. By analysis that can be known that precipitation phases include mainly Al4Sr and Al4Sr which varied from the Sr/Al ratio.
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
J. P. Fan et al., "A Research on the Influence of Sr/Al Ratio on Microstructure of Mg-Al-Sr Alloy", Advanced Materials Research, Vols. 239-242, pp. 2201-2205, 2011