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Characterization and deformation behavior of Ti hybrid compacts with solid-to-porous gradient structure
Graphical abstract Display Omitted
Highlights Ti hybrid compacts can be prepared by the multiple electro-discharging treatments. Solid-to-porous gradient structure is crucial to tune the mechanical properties. Deformation mode changed from the vertical to shear deformation mechanisms.
Abstract Multiple electro-discharging of pure Ti powder under the energy of 0.58kJ generated by a 450μF capacitor being charged to 1.6kV is very effective to fabricate hybrid structure consisting of central solid and outer porous structure. Increasing the number of electro-discharge treatments up to 3 causes the solid initially formed at the center of the compacts to expand gradually outwards thus increasing the volume fraction of the solid region throughout the samples. The value of compressive yield stress is enhanced up to 64MPa with increasing the number of electro-discharging treatment. Transition of deformation mode from the vertical to shear deformation clearly indicates the mechanical property and deformation behavior of the hybrid compacts with gradient structure are strongly depending on the volume concentration ratio of the central solid and outer porous areas.
Characterization and deformation behavior of Ti hybrid compacts with solid-to-porous gradient structure
Graphical abstract Display Omitted
Highlights Ti hybrid compacts can be prepared by the multiple electro-discharging treatments. Solid-to-porous gradient structure is crucial to tune the mechanical properties. Deformation mode changed from the vertical to shear deformation mechanisms.
Abstract Multiple electro-discharging of pure Ti powder under the energy of 0.58kJ generated by a 450μF capacitor being charged to 1.6kV is very effective to fabricate hybrid structure consisting of central solid and outer porous structure. Increasing the number of electro-discharge treatments up to 3 causes the solid initially formed at the center of the compacts to expand gradually outwards thus increasing the volume fraction of the solid region throughout the samples. The value of compressive yield stress is enhanced up to 64MPa with increasing the number of electro-discharging treatment. Transition of deformation mode from the vertical to shear deformation clearly indicates the mechanical property and deformation behavior of the hybrid compacts with gradient structure are strongly depending on the volume concentration ratio of the central solid and outer porous areas.
Characterization and deformation behavior of Ti hybrid compacts with solid-to-porous gradient structure
Lee, J.H. (author) / Park, H.J. (author) / Hong, S.H. (author) / Kim, J.T. (author) / Lee, W.H. (author) / Park, J.M. (author) / Kim, K.B. (author)
2014-03-21
6 pages
Article (Journal)
Electronic Resource
English
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