Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 860, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2020.158425
Keywords
Zinc sheet; Texture and anisotropy; VPSC model; Continuous dynamic recrystallization
Categories
Funding
- ANPCyT - Agencia Nacional de Promocion Cientifica y Tecnologica [PICT-A 2017-2970]
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The study successfully simulated the mechanical response and texture evolution of Zn-Cu-Ti alloy sheet under different loading directions using the VPSC model and considering the CDRX effect. The results show that the effect of CDRX on crystallographic orientations can effectively mimic the material's texture evolution.
The aim of the present work is to simulate the macroscopic, anisotropic mechanical response and texture evolution of Zn-Cu-Ti alloy sheet under uniaxial tension and simple shear taking into account the grain fragmentation process due to continuous dynamic recrystallization (CDRX). The Visco-Plastic Self-Consistent (VPSC) model is applied using the affine linearization procedure, and the effect of CDRX on texture evolution is mimicked by empirically enforcing the continuity of the lattice rotation field between pairs of orientations randomly chosen. The proposed model is validated by tensile and shear tests at different loading directions; specimens were cut at 0 degrees, 45 degrees, and 90 degrees with respect to the rolling direction. We show that the mechanical response and the texture evolution are adequately reproduced taking into account the effect of CDRX on the crystallographic orientations. In particular, the typical splitting of the basal poles predicted by VPSC simulations without the recrystallization effect when tensile loading is aligned to the transverse direction is avoided, in agreement with the experimental evidence. The proposed mechanics of short-range interaction can effectively mimic, in a very simple way, the effects of CDRX on the texture evolution of Zn-Cu-Ti alloy sheet under monotonic loadings. (C) 2020 Elsevier B.V. All rights reserved.
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