Evolution of grain and subgrain structure during cold rolling of commercial-purity titanium

Zherebtsov, Sergey; D’yakonov, G. S.; Salem, Ayman A.; Malysheva, S. P.; Салищев, Г. А.; Semiatin, S. L.

doi:10.1016/j.msea.2011.01.039

Cited by 101 publications

(54 citation statements)

References 19 publications

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“…2c). In agreement with findings in the literature [3][4][5][6][7][8][9][10]17,18], twinning seemed to be suppressed at this level of reduction. In addition, the twin boundaries were almost completely transformed into HABs with misorientations different from those associated with twinning (Fig.…”

Section: Intermediate Strainssupporting

confidence: 92%

“…6d). This effect in heavily rolled titanium has also been reported previously [5,6,21]. Although its origin is not completely clear, it is believed it may be related with prism and pyramidal slip [22].…”

Section: Texturesupporting

confidence: 71%

“…Microstructure evolution during rolling to relatively low thickness reductions (r40%) has been shown to be markedly influenced by mechanical twinning [3][4][5][6][7][8]. Extensive development of both compressive f1122g〈112 3〉 and tensile f1012g〈101 1〉 twins during rolling leads to rapid grain refinement [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Extensive development of both compressive f1122g〈112 3〉 and tensile f1012g〈101 1〉 twins during rolling leads to rapid grain refinement [3][4][5][6][7]. On the other hand, grains favorably oriented for prism slip tend to remain untwinned [4,6].…”

Section: Introductionmentioning

confidence: 99%

“…Microstructure formation at these large strains has been hypothesized to be largely controlled by the development of deformation-induced dislocation boundaries [5,8], but the details of this process are not clear. The objective of the present investigation, therefore, was to develop an understanding of microstructure evolution during cold-rolling of alpha titanium to large strains.…”

Section: Introductionmentioning

confidence: 99%

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Grain-structure development in heavily cold-rolled alpha-titanium

D’yakonov

Mironov

Zherebtsov

et al. 2014

Materials Science and Engineering: A

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a b s t r a c tHigh-resolution electron back-scatter diffraction (EBSD) analysis was employed to establish mircostructure evolution in heavily cold-rolled alpha-titanium. After thickness reductions of 75% to 96%, significant microstructure and texture changes were documented. The surface area of high-angle grain boundaries was almost tripled, thus giving rise to an ultra-fine microstructure with a mean grain size of 0.6 μm. Moreover, orientation spread around typical 'split-basal' rolling texture substantially increased.These effects were suggested to be related to the enhancement of pyramidal 〈c þa〉 slip.

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Section: Intermediate Strainssupporting

confidence: 92%

Section: Texturesupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Grain-structure development in heavily cold-rolled alpha-titanium

D’yakonov

Mironov

Zherebtsov

et al. 2014

Materials Science and Engineering: A

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Effect of Severe Cold or Warm Deformation on Microstructure Evolution and Tensile Behavior of a 316L Stainless Steel

2015

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The deformation microstructures and mechanical properties of a 316L austenitic stainless steel subjected to large strain cold or warm plate rolling are studied. The cold or warm rolling was carried out at room temperature or 573 K, respectively, to different total true strains up to 3. The structural changes are characterized by the development of nanocrystalline structures with the transverse grain size of about 80 or 160 nm at room temperature or 573 K, respectively. The evolution of nanocrystalline structure under cold working conditions (room temperature) is assisted by the development of mechanical twinning and partial martensitic transformation that result in rapid grain refinement. The development of nanocrystalline structures during cold/warm working is accompanied by significant strengthening. The yield strength approaches 1 680 or 1 070 MPa after cold or warm rolling to a total strain of 3, respectively.

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In situ electro-plastic treatment for thermomechanical processing of CP titanium

Khalik

Zahiri

Masood

et al. 2021

Int J Adv Manuf Technol

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Titanium and its alloys have been used in a broad range of products such as biomedical implants due to their high specific strength, corrosion resistance and biocompatibility. Improvement in microstructure and mechanical properties of CP titanium is usually performed by cold rolling and controlled atmosphere heat treatment that is energy-intensive and costly. This study aims to investigate the effect of an in-situ electro-plastic treatment (ISEPT) on the microstructure evolution of commercially pure (CP) titanium. The deformation load and electric current in this treatment were applied in the same direction (in-situ) to maximise the electro-plastic effect. Simultaneous electric current and strain application created a condition for dynamic recrystallization to occur at low temperature and under atmospheric conditions, thus reducing the cost and energy for manufacturing. The rapid heating and cooling prevented the oxidation of titanium to a large degree, eliminating the costly inert gas or vacuum requirement. Results in relation to the effect of applied current, strain rate, cold working and geometry on the processed CP Ti were discussed.

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Evolution of grain and subgrain structure during cold rolling of commercial-purity titanium

Cited by 101 publications

References 19 publications

Grain-structure development in heavily cold-rolled alpha-titanium

Grain-structure development in heavily cold-rolled alpha-titanium

Effect of Severe Cold or Warm Deformation on Microstructure Evolution and Tensile Behavior of a 316L Stainless Steel

In situ electro-plastic treatment for thermomechanical processing of CP titanium

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