Acoustic Emission Behavior of TC4 Titanium Alloy Manufactured by Electron-Beam Free-Form Fabrication During Tensile Deformation
Springer Proceedings in PhysicsAdvances in Acoustic Emission Technology(2019)
摘要
Acoustic emission (AE) testing was carried out in the TC4 titanium alloy manufactured by electron-beam free-form fabrication. The acoustic emission signal parameter distribution, localization characteristics, and frequency spectrum characteristic are analyzed in this chapter. The results indicated that there are many AE signals during the tensile deformation of the EBF3 TC4 titanium alloy material. The frequency of its AE signals shows it has a wide frequency band from 50 to 500 kHz, with a peak value of 150 kHz. The AE amplitudes are mainly distributed in 50–60 dB. The AE technique could be used as an effective means for the safety evaluation of the EBF3 TC4 titanium alloy material.
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关键词
Acoustic emission,TC4 titanium alloy,Electron-beam free-form fabrication (EBF3)
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