Characterization and Modeling of Twinning in a Titanium Alloy Ti-6Al-4V

Frederik Coghe; Wim Tirry; Luc Rabet; Paul van Houtte

doi:10.4028/www.scientific.net/MSF.702-703.237

Paper Titles

The Brass-Type Texture – How close Are we to Understand it?
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Microstructural and Crystallographic Aspects of Yield Surface Evolution
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New Model for Twin-Variant Selection in Hexagonal Alloys
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Validation of the Texture-Based ALAMEL and VPSC Models by Measured Anisotropy of Plastic Yielding
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Characterization and Modeling of Twinning in a Titanium Alloy Ti-6Al-4V
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Rolling Texture Transition in FCC Metals Using the Viscoplastic Φ-Model and Considering Mechanical Twinning
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On the Use of EBSD to Study the Heterogeneity of Plastic Deformation
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Classification of Textures and Microstructure Stability in Rolled F.C.C. Metals with Grain Interactions
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Tracking the In-Grain Orientation Spreads in Hot-Deformed Polycrystalline Aluminium: Experiment and Finite Element Simulation
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HomeMaterials Science ForumMaterials Science Forum Vols. 702-703Characterization and Modeling of Twinning in a...

Characterization and Modeling of Twinning in a Titanium Alloy Ti-6Al-4V

Abstract:

The twinning behavior of a commercial Ti-6Al-4V alloy is studied using a combined experimental and numerical approach. An extensive microstructural investigation was performed to identify and quantify the active twin systems. The mechanical behavior as a function of initial texture and strain rate was then modeled using a visco-plastic self-consistent crystal plasticity code (VPSC7). Earlier obtained quasi-static and dynamic data served to fit the parameters of the model, giving good agreement. However, even if the model gave qualitatively good predictions of the stress-strain curves and the texture evolution for the different loadings, the calculated twin fractions differed considerably of the experimental results.

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Periodical:

Materials Science Forum (Volumes 702-703)

Pages:

237-240

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.702-703.237

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Online since:

December 2011

Authors:

Frederik Coghe, Wim Tirry, Luc Rabet, Paul van Houtte

Keywords:

Twinning, Plasticity, Ti6Al4V, Titanium Alloy

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References

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