Effects of induced shear deformation on microstructure and texture evolution in CP-Ti rolled sheets

Milner, Justin L.; Abu-Farha, Fadi; Hammond, Vincent H.

doi:10.1016/j.msea.2014.09.004

Cited by 15 publications

(5 citation statements)

References 28 publications

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“…When  13 / 11 is further increased to 0.5, the texture is obviously changed. deformation from VPSC simulation agrees well with the experimental results of Milner et al, who reported a 30 transverse direction split basal texture was evolved to primarily basal texture when inducing shear deformation by isolated shear rolling [7]. And when  13 / 11 is increased up to 1, the RD//<101 -0> fiber texture is further decreased and the basal fiber texture with maximum intensity at (0001)[10 1…”

Section: Resultssupporting

confidence: 86%

“…And extensive researches have been conducted to reveal the relationship between strain state and deformation texture in FCC and BCC metals and showed that deformation texture was strongly influenced by shear deformation [4][5][6]. As for HCP metals, few researches have also reported that inducing shear deformation can change deformation texture [7][8]. However, studies on relationship between shear deformation and texture evolution in pure titanium are rarely reported.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Shear Deformation on Texture Evolution in Rolled Pure Titanium

Yang

Wang

2018

MATEC Web Conf.

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The cold rolling texture evolution under different strain states caused by coupled effects from different combinations of roll gap geometry and friction in pure titanium with initial typical recrystallized texture has been studied using viscoplastic self-consistent simulations. Under plane strain state, the texture is dominated by a typical cold rolling fiber texture RD//<1010> in pure titanium. However, when shear deformation is induced and increased, RD//<1010> fiber texture is decreased, whereas basal texture (0001)[1010] is increased and a strong partial fiber texture RD//<2110> is formed. The variation of cold rolling texture at different strain states can be ascribed to variation of relative contribution from activation of prismatic, basal and pyramidal slip.

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Section: Resultssupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Effect of Shear Deformation on Texture Evolution in Rolled Pure Titanium

Yang

Wang

2018

MATEC Web Conf.

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“…Rolling deformation and heat treatment have important effects on the microstructure and anisotropy of titanium and its alloys. [ 21–23 ] Milner et al investigated the effect of shear rolling on the texture evolution, and the texture evolved from TD‐split texture to primarily basal texture, resulting in the tensile formability was improved and the anisotropy was significantly decreased. [ 22 ] Ghosh et al showed that cross rolling and annealing treatment could reduce the anisotropy of pure titanium due to the rolling direction (RD)‐split texture with <0001>‐<10

\overset{\cdot}{1}

0> crystallographic axis aligned along RD, and the basal slip activity.…”

Section: Introductionmentioning

confidence: 99%

“…[ 21–23 ] Milner et al investigated the effect of shear rolling on the texture evolution, and the texture evolved from TD‐split texture to primarily basal texture, resulting in the tensile formability was improved and the anisotropy was significantly decreased. [ 22 ] Ghosh et al showed that cross rolling and annealing treatment could reduce the anisotropy of pure titanium due to the rolling direction (RD)‐split texture with <0001>‐<10

\overset{\cdot}{1}

0> crystallographic axis aligned along RD, and the basal slip activity. [ 23 ] Therefore, the preparation of a titanium foil with weak anisotropy by regulating the rolling technology is of great significance for the development of bipolar plate materials for hydrogen fuel cell.…”

Section: Introductionmentioning

confidence: 99%

Effect of Cold‐Rolling Deformation on Texture Evolution and Tensile Properties of Titanium Foil for Hydrogen Fuel Cell

Liu,

et al. 2024

Adv Eng Mater

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Preparation of a titanium foil with weak anisotropy is of great significance for the development of bipolar plate materials for hydrogen fuel cell. However, the titanium foil obtained by rolling deformation often suffer from a severe deformation anisotropy due to the formation of a specific texture feature. In this study, the texture feature of pure titanium foil with different cold‐rolling reduction was characterized by EBSD, and the effect of cold‐rolling deformation on texture evolution and tensile properties of titanium foil were systematically investigated. The results have shown that the cold‐rolling reduction could significantly affect the tensile anisotropy of titanium foil by regulating the texture characteristics. At the low level of cold‐rolling reductions (0‐30%), the texture of titanium foil is mainly pyramid texture, causing the obvious tensile anisotropy. At the medium level of cold‐rolling reductions (50%), strong basal‐plane texture components were appeared, causing that the activated slip system along TD or ND is almost the same, and thus the tensile anisotropy gradually diminished. At the high level of cold‐rolling reductions (70%), the intensity of basal‐plane texture become weak, and the tensile anisotropy appears in titanium foil again. Our findings could provide theoretical guidance and technical support for the preparation of weak anisotropic titanium foil for hydrogen fuel cell.This article is protected by copyright. All rights reserved.

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“…Moreover, a remarkable hardening effect is sometimes observed in this temperature range [3][4][5][6]. On the other hand, a further increase of the annealing temperature to 400oC usually leads to material softening and essential restoration of ductility [4,[7][8][9][10], thus evidencing a recovery process [10]. Recrystallization of SPD CP Ti is often found to occur within the temperature interval of 400-500°C [4,[8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Thermal Stability and Recrystallization of Titanium Grade 4 with Ultrafine-Grained Structure

et al. 2020

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The paper examined annealing behavior of ultrafine-grained Ti Grade 4. The ultrafine-grained microstructure was produced by equal-channel angular pressing (ECAP) technique by using a Conform scheme and was characterized by a mean grain size of d=0.3 μm and non-equilibrium grain boundaries. The ultrafine-grained structure was found to be stable up to 400°C. The excellent thermal stability was attributed to a strain-ageing, i.e., the enhanced diffusion of interstitial solutes resulting in a formation of solute atmospheres at/near grain boundaries and dislocations. At 450–500°C, a rapid growth of strain-free grains was observed to occur. This process eliminated severely-deformed microstructure and gave rise to abrupt material softening. A further increase of the annealing temperature above 600°С resulted in precipitation of lenticular dispersoids as well as iron-rich globular β-particles. This surprising phenomenon promoted a subtle hardening effect.

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Effects of induced shear deformation on microstructure and texture evolution in CP-Ti rolled sheets

Cited by 15 publications

References 28 publications

Effect of Shear Deformation on Texture Evolution in Rolled Pure Titanium

Effect of Shear Deformation on Texture Evolution in Rolled Pure Titanium

Effect of Cold‐Rolling Deformation on Texture Evolution and Tensile Properties of Titanium Foil for Hydrogen Fuel Cell

Thermal Stability and Recrystallization of Titanium Grade 4 with Ultrafine-Grained Structure

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