Mechanical characteristics of pure Mg and a Mg/Y2O3 nanocomposite in the 25–250 °C temperature range

Mechanical characteristics of pure Mg and a Mg/Y2O3 nanocomposite in the 25–250 °C temperature range: "

Abstract

In this study, the effect of nano-yttrium oxide particles on the mechanical properties of pure magnesium at elevated temperatures
is investigated. Mg/Y₂O₃ (2 wt%/0.7 vol%) bulk composite was synthesised via a powder metallurgy technique incorporating microwave sintering and hot
extrusion. Tensile properties and Brinell hardness behavior of pure Mg and composite samples in the 25–250 °C temperature
range were investigated. Both tensile and yield strengths of pure Mg and Mg/Y₂O₃ composite samples decreased with an increase in testing temperature. The elongation to failure, however, increased up to
200 °C. At all temperatures, the overall mechanical response of the composite samples was found to be superior compared to
pure magnesium and this is primarily attributed to the presence of Y₂O₃ particles in the magnesium matrix.

• Content Type Journal Article
• DOI 10.1007/s10853-010-4312-z
• Authors
  
  
  • Ashis Mallick, National University of Singapore Department of Mechanical Engineering 9 Engineering Drive 1 Singapore 117576 Singapore
  • Khin Sandar Tun, National University of Singapore Department of Mechanical Engineering 9 Engineering Drive 1 Singapore 117576 Singapore
  • Srikanth Vedantam, National University of Singapore Department of Mechanical Engineering 9 Engineering Drive 1 Singapore 117576 Singapore
  • Manoj Gupta, National University of Singapore Department of Mechanical Engineering 9 Engineering Drive 1 Singapore 117576 Singapore
  
  

• Journal Journal of Materials Science
• Online ISSN 1573-4803
• Print ISSN 0022-2461

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