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Effect of Sintering Parameters on the Microstructure and Mechanical Properties of Medical Mg–3Mn and Mg–3Zn Prepared by Powder Metallurgy

  • Xia LuoEmail author
  • Chao Fang
  • Fanjin Yao
  • Hong Zhao
  • Shuai Yan
Technical Paper
  • 35 Downloads

Abstract

Magnesium alloys as the lightest commercial structural materials have wide application prospects such as in the medical application. However, it is difficult to sinter Mg alloys dense when powder metallurgy was used because of the oxide layers covered by the surface of Mg powders. To solve this problem, Mg–3Zn and Mg–3Mn alloys were sintered under vacuum system in this study. Mg–3Zn and Mg–3Mn compactions were sintered at different temperatures for 2 h based on their phase diagrams in the vacuum furnace. The results show that when sintered at 560 °C, the highest microhardness and relative density of Mg–3Zn alloy are 74.3 HV and 98.4%, respectively. For Mg–3Mn alloy, its highest corresponding value is 46.08 HV and 86.6%, respectively, when sintered at 600 °C. Mg–3Mn is more difficult to be sintered because it is denser than Mg–3Zn. The microstructure of sintered Mg–3Zn and Mg–3Mn mainly is composed of α-Mg and MgZn2, and α-Mn, α-Mg and MnO2, respectively.

Keywords

Mg alloys Microstructure Mechanical property Sintering Microhardness 

Notes

Acknowledgements

The authors gratefully acknowledge the financial support of Young Scholars development fund of SWPU (No. 201599010066) and the National Natural Science Foundation of China (No. 51704255).

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Copyright information

© The Indian Institute of Metals - IIM 2019

Authors and Affiliations

  • Xia Luo
    • 1
    Email author
  • Chao Fang
    • 1
  • Fanjin Yao
    • 1
  • Hong Zhao
    • 1
  • Shuai Yan
    • 1
  1. 1.School of Materials Science and EngineeringSouthwest Petroleum UniversityChengduPeople’s Republic of China

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