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Assessment of crystal plasticity finite element simulations of the hot deformation of metals from local strain and orientation measurements.

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Title: Assessment of crystal plasticity finite element simulations of the hot deformation of metals from local strain and orientation measurements.
Authors: Pinna, C.1 c.pinna@sheffield.ac.uk, Lan, Y.1,2 Yongjun.Lan@tatasteel.com, Kiu, M.F.1 mep10mfk@sheffield.ac.uk, Efthymiadis, P.1,3 P.Efthymiadis@warwick.ac.uk, Lopez-Pedrosa, M.1,4 magda@appliedseismology.com, Farrugia, D.2 didier.farrugia@tatasteel.com
Source: International Journal of Plasticity. Oct2015, Vol. 73, p24-38. 15p.
Subjects: Plastic properties of crystals, Finite element method, Deformations (Mechanics), Strains & stresses (Mechanics), Face centered cubic structure, Scanning electron microscopy, Alloys
Abstract: Simulations of the deformation of microstructures at high homologous temperatures have been carried out using a Crystal Plasticity Finite Element (CPFE) model to predict texture and grain structure deformation in Face-Centred-Cubic (FCC) metals deformed under conditions representative of hot forming operations. Results show that the model can quantitatively predict the location and intensity of the main deformation texture components of a AA5052 aluminium alloy deformed at 300 °C under Plane Strain Compression (PSC). Simulations also reasonably predict the range of strain values measured using microgrids in the microstructure of a Fe-30wt%Ni alloy deformed at 1000 °C using a new experimental procedure. However, the model fails to reproduce accurately intra-granular strain distribution patterns. Results at room temperature, after a tensile test carried out inside a Scanning Electron Microscope (SEM) on the same model alloy, show a much closer match between simulation and experimental results. Despite discrepancies for some local deformation features, the model predicts the formation of intense deformation bands running at 45° with respect to the tensile axis and located along the same grain boundaries as in the experiment. Results, therefore, highlight the limitations of deterministic CPFE simulations for situations where the grain size to sample thickness ratio is small and for which the sub-surface grain geometry strongly affects surface strains. They also show that reliable predictions of the statistical response of a polycrystalline aggregate can be obtained for the hot deformation of metals which controls microstructure evolution during the processing of metals. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Plasticity is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 108809509
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Assessment of crystal plasticity finite element simulations of the hot deformation of metals from local strain and orientation measurements.
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  Data: <searchLink fieldCode="AR" term="%22Pinna%2C+C%2E%22">Pinna, C.</searchLink><relatesTo>1</relatesTo><i> c.pinna@sheffield.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Lan%2C+Y%2E%22">Lan, Y.</searchLink><relatesTo>1,2</relatesTo><i> Yongjun.Lan@tatasteel.com</i><br /><searchLink fieldCode="AR" term="%22Kiu%2C+M%2EF%2E%22">Kiu, M.F.</searchLink><relatesTo>1</relatesTo><i> mep10mfk@sheffield.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Efthymiadis%2C+P%2E%22">Efthymiadis, P.</searchLink><relatesTo>1,3</relatesTo><i> P.Efthymiadis@warwick.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Lopez-Pedrosa%2C+M%2E%22">Lopez-Pedrosa, M.</searchLink><relatesTo>1,4</relatesTo><i> magda@appliedseismology.com</i><br /><searchLink fieldCode="AR" term="%22Farrugia%2C+D%2E%22">Farrugia, D.</searchLink><relatesTo>2</relatesTo><i> didier.farrugia@tatasteel.com</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Plasticity%22">International Journal of Plasticity</searchLink>. Oct2015, Vol. 73, p24-38. 15p.
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  Data: <searchLink fieldCode="DE" term="%22Plastic+properties+of+crystals%22">Plastic properties of crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Deformations+%28Mechanics%29%22">Deformations (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Face+centered+cubic+structure%22">Face centered cubic structure</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopy%22">Scanning electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Alloys%22">Alloys</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Simulations of the deformation of microstructures at high homologous temperatures have been carried out using a Crystal Plasticity Finite Element (CPFE) model to predict texture and grain structure deformation in Face-Centred-Cubic (FCC) metals deformed under conditions representative of hot forming operations. Results show that the model can quantitatively predict the location and intensity of the main deformation texture components of a AA5052 aluminium alloy deformed at 300 °C under Plane Strain Compression (PSC). Simulations also reasonably predict the range of strain values measured using microgrids in the microstructure of a Fe-30wt%Ni alloy deformed at 1000 °C using a new experimental procedure. However, the model fails to reproduce accurately intra-granular strain distribution patterns. Results at room temperature, after a tensile test carried out inside a Scanning Electron Microscope (SEM) on the same model alloy, show a much closer match between simulation and experimental results. Despite discrepancies for some local deformation features, the model predicts the formation of intense deformation bands running at 45° with respect to the tensile axis and located along the same grain boundaries as in the experiment. Results, therefore, highlight the limitations of deterministic CPFE simulations for situations where the grain size to sample thickness ratio is small and for which the sub-surface grain geometry strongly affects surface strains. They also show that reliable predictions of the statistical response of a polycrystalline aggregate can be obtained for the hot deformation of metals which controls microstructure evolution during the processing of metals. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Plasticity is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.ijplas.2015.05.015
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 15
        StartPage: 24
    Subjects:
      – SubjectFull: Plastic properties of crystals
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Deformations (Mechanics)
        Type: general
      – SubjectFull: Strains & stresses (Mechanics)
        Type: general
      – SubjectFull: Face centered cubic structure
        Type: general
      – SubjectFull: Scanning electron microscopy
        Type: general
      – SubjectFull: Alloys
        Type: general
    Titles:
      – TitleFull: Assessment of crystal plasticity finite element simulations of the hot deformation of metals from local strain and orientation measurements.
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            NameFull: Pinna, C.
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            – D: 01
              M: 10
              Text: Oct2015
              Type: published
              Y: 2015
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              Value: 73
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