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Formability and macroscopic shearing of a titanium alloy Ti-6Al-4V under channel die compression

Abstract : The mechanical behavior of Ti-6Al-4V is analyzed using channel die compression tests at room temperature. Specimens were cut out from a starting sheet in order to consider samples with specific initial crystallographic textures. Three types of specimens are considered in the study using an angle θ defined with the initial directions LD0, TD0 and ND0 of the starting sheet. The following values of θ are considered: 0°, 45° and 90°. Plastic deformations up to 20% are considered. Several experimental techniques are used, namely optical microscopy, SEM and Xray diffraction for texture evolution. The true stress-strain curves are plotted and the shape change of the specimens is analyzed. A macroscopic shearing is observed for one the three types of initial textures considered, notably θ = 45°. To complete the study, the Taylor model is applied in order to compare the activation of the mechanisms of the α phase in the different specimens. © 2017 Author(s).
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Conference papers
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01671607
Contributor : Laurent Jonchère <>
Submitted on : Friday, December 22, 2017 - 2:35:30 PM
Last modification on : Friday, July 10, 2020 - 4:23:09 PM

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H. Francillette, C. Garand. Formability and macroscopic shearing of a titanium alloy Ti-6Al-4V under channel die compression. 20th International ESAFORM Conference on Material Forming, ESAFORM 2017, Apr 2017, Dublin, Ireland. ⟨10.1063/1.5007962⟩. ⟨hal-01671607⟩

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