Analysis on the change in dynamic tension mechanical properties of Zr41.2Ti13.8 Cu12.5Ni10Be22.5 bulk metallic glass with temperature

Yi Lei Li*, Qing Ming Zhang, Kai Diao, Wen Min Yu, Li Chen, Ren Rong Long

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The dynamic tension experiments of a typical bulk metallic glass (BMG), Zr41.2Ti13.8 Cu12.5Ni10Be22.5 (Vit1), at room and high temperatures were conducted to research the relationship between the mechanical properties of BMGs with ambient temperature. It is found that the dynamic tension fracture strength of Vit1 BMG reduces with the increase in ambient temperature (ambient temperature>150 °C), and the ambient temperature rise has a significant softening effect on the material. It is suggested that the generation and development of shear bands in Vit1 samples during fracture process are induced by the voids that are generated by free volume, and the rising temperature softens the materials and reduces their viscosity, therefore affecting the fracture strength of material.

Original languageEnglish
Pages (from-to)258-261
Number of pages4
JournalBinggong Xuebao/Acta Armamentarii
Volume33
Issue numberSUPPL.1
Publication statusPublished - May 2012

Keywords

  • Bulk metallic glass
  • Dynamic tension
  • Free volume
  • Solid mechanics
  • Split Hopkinson press bar
  • Temperature rise

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