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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2017> 26(1): 135-135
Denghui Zhao, Qian Wang, Lin Wang, Maosheng Zhi. Dynamic Fracture of Ti-5553 Alloy in Taylor Impact Test[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2017, 26(1): 135-135. doi: 10.15918/j.jbit1004-0579.201726.0100
Citation: Denghui Zhao, Qian Wang, Lin Wang, Maosheng Zhi. Dynamic Fracture of Ti-5553 Alloy in Taylor Impact Test[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2017, 26(1): 135-135.doi:10.15918/j.jbit1004-0579.201726.0100
shu

Dynamic Fracture of Ti-5553 Alloy in Taylor Impact Test

doi:10.15918/j.jbit1004-0579.201726.0100
  • 1.

    School of Materials Science and Engineering, National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing Institute of Technology, Beijing 100081, China;China Ordnance Industrial Standardization Research Institute, Beijing 100089, China

  • 2.

    Hubei Aerospace Vehicle Research Institute, Wuhan 430040, China

  • 3.

    School of Materials Science and Engineering, National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing Institute of Technology, Beijing 100081, China

  • Received Date:2016-08-27
    Abstract
  • The dynamic fracture behavior of a new near-beta Ti-5Al-5Mo-5V-3Cr-1Fe (Ti-5553) alloy under a high strain rate loading was investigated systemically using the Taylor impact test,over the impact velocity ranging from 156 ms -1to 256 ms -1.An optical microscope (OM) and a scanning e-lectron microscope (SEM) were used to characterize the microstructure evolution.The experimental results have demonstrated that the velocity from deformation to fracture is 256 ms -1for the alloy with an α+ βduplex microstructure including more primary αphase,while the velocity is 234 ms -1for the alloy with a duplex microstructure including less primary αphase.From the impact fracture mor-phologies,smooth and smeared surfaces and ductile dimple areas can be observed.The failure mode of the titanium alloy with both microstructures is adiabatic shear banding.According to the fracture analysis,the ductile fracture area with the dimple area in the alloy with much more primary αphase were more than that with less primary αphase.Compared to the duplex microstructure with less pri-mary αphase,Ti-5553 alloy with more primary αphase exhibited a better capability to resist an adia-batic shear damage.
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    • References (15)
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