%0 journal article
%@ 2213-9567
%A Wang, S., Huang, Y., Yang, L., Zeng, Y., Hu, Y., Zhang, X., Sun, Q., Shi, S., Meng, G., Hort, N.

%D 2023
%J Journal of Magnesium and Alloys
%N 1
%P 259-269 
%R doi:10.1016/j.jma.2021.04.002
%T Microstructure and mechanical properties of Mg-3Sn-1Ca reinforced with AlN nano-particles
%U https://doi.org/10.1016/j.jma.2021.04.002
1 
%X Microstructural evolution and strengthening mechanisms of Mg-3Sn-1Ca based alloys with additions of different amounts of AlN nano-particles were investigated. It was found that with increasing the amount of AlN nano-particles the grain size decreases obviously. The existence of AlN nano-particles could refine the primary crystal phases CaMgSn, which provided more heterogeneous nucleation sites for the formation of magnesium. Moreover, such nano-particles could also restrict the grain growth during solidification. After adding AlN nano-particles, both the tensile properties at room temperature and high temperature 250 °C and the hardness are largely improved. The improvement of strength is attributed to grain refinement and second phase refinement.