Adiabatic shear fracture of titanium alloy subjected to high strain rate and high temperature loadings

Woei-Shyan Lee, C. F. Lin

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8 Citations (Scopus)

Abstract

The aims of this study are to realize under which conditions adiabatic shearing occurs, and to better understand the formation and variations of the adiabatic shear band of Ti-6A1-4V alloy subjected to high strain rate and high temperature conditions with microstructural observation. The cylindrical specimens are first deformed at strain rate ranging from 5×102 to 3×103 s-1 under initial deformation temperature of 700°C, 900°C and 1100°C, respectively, by means of compressive split-Hopkinson bars, then, the fracture phenomenon and morphology of the adiabatic shear bands are examined and analyzed with the optical microscopy and scanning electron microscopy. The results of these experiments and how adiabatic shearing behaviour correlates with the effect of strain rate and temperature are discussed.

Original languageEnglish
JournalJournal De Physique. IV : JP
Volume7
Issue number3
Publication statusPublished - 1997 Aug

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titanium alloys
Titanium alloys
strain rate
Strain rate
Shear bands
shear
shearing
Shearing
adiabatic conditions
Temperature
Optical microscopy
temperature
microscopy
Scanning
Scanning electron microscopy
scanning electron microscopy
Experiments

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

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AB - The aims of this study are to realize under which conditions adiabatic shearing occurs, and to better understand the formation and variations of the adiabatic shear band of Ti-6A1-4V alloy subjected to high strain rate and high temperature conditions with microstructural observation. The cylindrical specimens are first deformed at strain rate ranging from 5×102 to 3×103 s-1 under initial deformation temperature of 700°C, 900°C and 1100°C, respectively, by means of compressive split-Hopkinson bars, then, the fracture phenomenon and morphology of the adiabatic shear bands are examined and analyzed with the optical microscopy and scanning electron microscopy. The results of these experiments and how adiabatic shearing behaviour correlates with the effect of strain rate and temperature are discussed.

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