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
Issue number1
Pages (from-to)259-269
Number of pages11
Publication statusPublished - 01.01.2023
Externally publishedYes

Bibliographical note

This work was financially supported by the Study Abroad Program by the Government of Shandong Province (201802005), Linyi Industrial Technology Research Institute and Shandong Yinguang Yuyuan Light Metal Precise Forming Co., Ltd. The authors appreciate Gerrit Kurz for the tensile tests, Gert Wiese Gert Wiese for SEM measurement and Petra Fischer for hardness measurement.

© 2021 Chongqing University.

    Research areas

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