Dynamic mechanical response of additive manufactured Ti-6Al-4V

Brown, A.; Ameri, A.; Gregg, A.; Austin, D.; Escobedo, J.; Hazell, P.; East, D.; Quadir, Md Zakaria

doi:10.1063/1.5044817

Access Status

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Authors

Brown, A.

Ameri, A.

Gregg, A.

Austin, D.

Escobedo, J.

Hazell, P.

East, D.

Quadir, Md Zakaria

Date

2018

Type

Conference Paper

Metadata

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Citation

Brown, A. and Ameri, A. and Gregg, A. and Austin, D. and Escobedo, J. and Hazell, P. and East, D. et al. 2018. Dynamic mechanical response of additive manufactured Ti-6Al-4V.

Source Title

AIP Conference Proceedings

DOI

10.1063/1.5044817

ISBN

9780735416932

School

John de Laeter Centre

URI

http://hdl.handle.net/20.500.11937/74456

Collection

Curtin Research Publications

Abstract

© 2018 Author(s). The dynamic mechanical response of additive manufactured (AM) Ti-6Al-4V has been investigated via Split-Hopkinson Pressure Bar (SHPB) and single-stage gas gun plate-impact experiments. Rods of Ti-6Al-4V were manufactured from Arcam and Renishaw electron beam melting (EBM) and laser melting deposition (LMD) powder bed systems, respectively. Horizontal and vertical build directions were produced for plate impacts to determine any effect of build layers on dynamic tensile strength. The as-received microstructures were characterized via optical microscopy and electron backscatter diffraction (EBSD). Johnson-Cook constitutive model parameters were found for the EBM condition via SHPB experiments. Plate impacts producing nominal peak shock stresses near the theoretical tensile strength of the material (3-5 GPa) were conducted to study incipient spall damage conditions as a function of AM material condition.