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HomeKey Engineering MaterialsKey Engineering Materials Vol. 926Viscoplastic Self-Consistent (VPSC) Modeling for...

Viscoplastic Self-Consistent (VPSC) Modeling for Predicting the Deformation Behavior of Commercial EN AW-7075-T651 Aluminum Alloy

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Abstract:

Viscoplastic self-consistent (VPSC) modeling was used for investigating the deformation behavior of commercial EN AW-7075-T651 aluminum alloy at room temperature under quasi-static tension and compression (i) parallel, (ii) diagonal and (iii) transverse to the rolling direction. Textures of the as-received plate and of the samples after tensile and compression testing were determined using electron backscatter diffraction (EBSD). Euler angles and area fractions of the grains were used as input for calculating direction-dependent flow curves and pole figures of the deformed material. The coefficients of the integrated Voce strain hardening law were adjusted in order to fit the calculated flow curves to flow curves obtained from tensile and compression testing. Pole figures calculated with the VPSC modeling method were validated with pole figures obtained from EBSD analysis of deformed samples. VPSC modeling was successfully applied for predicting the general deformation behavior of EN AW-7075-T651 under both tension and compression. However, texture evolution during tensile testing was negligible, whereas notable texture evolution during compression testing occurred beyond a critical strain value.

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Periodical:

Key Engineering Materials (Volume 926)

Pages:

2109-2118

DOI:

https://doi.org/10.4028/p-1ydx9o

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Cite this paper

Online since:

July 2022

Authors:

Josef Domitner*, Ricardo H. Buzolin, Samiksha Patil, Peter Auer, Nikolaus Papenberg, Evgeniya Kabliman, Zahra Silvayeh, Andreas Drexler, Florian Grabner

Keywords:

aluminum alloy, crystallographic orientation, metal forming, texture, VPSC modeling

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Creative Commons CC BY 4.0

* - Corresponding Author

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