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Dynamic Behavior, Energetic Characteristics, and Failure Mechanism of High-Density W-Zr-Ti Reactive Alloy

  • Yuxuan Qi
  • , Liang Mao
  • , Peiying Li
  • , Guitao Liu
  • , Longnian Tian
  • , Chunlan Jiang*
  • *Corresponding author for this work
  • Beijing Institute of Technology
  • Ningbo Branch of China Academy of Ordnance Science

Research output: Contribution to journal › Article › peer-review

Abstract

A high-density tungsten-zirconium-titanium (W-Zr-Ti) reactive alloy was prepared by powder metallurgy. This alloy exhibits high density, high strength, and violent energy release characteristics, resulting in outstanding penetration and ignition abilities. Dynamic impact experiment demonstrated its strain rate hardening effect, and the energetic characteristics were investigated by digital image processing technique and thermal analysis experiment. The results show that W-Zr-Ti reactive alloy performs compressive strength of 2.25 GPa at 5784 s−1 strain rate, and its exothermic reaction occurs at about 961 K. Based on the explosion test and shock wave theory, thresholds of enhanced damage effect are less than 35.77 GPa and 5.18×104 kJ/m2 for shock pressure and energy, respectively. Furthermore, the transformation of fracture behavior and failure mechanism is revealed, which causes the increase in compressive strength and reaction intensity under dynamic loading.

Translated title of the contribution高密度 W-Zr-Ti 活性合金的动态力学行为、能量释放特性及断裂失效机制
Original languageEnglish
Pages (from-to)1687-1696
Number of pages10
JournalXiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume54
Issue number7
DOIs
Publication statusPublished - Jul 2025
Externally publishedYes

Keywords

  • dynamic behavior
  • energetic characteristics
  • failure mechanism
  • reactive alloy

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