Microstructure and mechanical properties of Mg-3Sn-1Ca reinforced with AlN nano-particles

Research output: Journal contributionsJournal articlesResearchpeer-review


  • Shaozhu Wang
  • Yuanding Huang
  • Lixiang Yang
  • Ying Zeng
  • Yaozeng Hu
  • Xiao Zhang
  • Qiang Sun
  • Shaojun Shi
  • Guangyao Meng
  • Norbert Hort

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.

Original languageEnglish
JournalJournal of Magnesium and Alloys
Number of pages10
Publication statusE-pub ahead of print - 20.06.2021

    Research areas

  • AlN nano-particles, Grain refinement, Mg-Sn-Ca alloy, Microstructure, Strengthening mechanisms
  • Engineering