Standard

Analysis of substructure evolution during simple shear of polycrystals by means of a combined viscoplastic self-consistent and disclination modeling approach. / Nazarov, A. A.; Enikeev, N. A.; Romanov, A. E.; Orlova, T. S.; Alexandrov, I. V.; Beyerlein, I. J.; Valiev, R. Z.

In: Acta Materialia, Vol. 54, No. 4, 01.02.2006, p. 985-995.

Research output: Contribution to journal › Article › peer-review

Harvard

Nazarov, AA, Enikeev, NA, Romanov, AE, Orlova, TS, Alexandrov, IV, Beyerlein, IJ & Valiev, RZ 2006, 'Analysis of substructure evolution during simple shear of polycrystals by means of a combined viscoplastic self-consistent and disclination modeling approach', Acta Materialia, vol. 54, no. 4, pp. 985-995. https://doi.org/10.1016/j.actamat.2005.10.025

APA

Nazarov, A. A., Enikeev, N. A., Romanov, A. E., Orlova, T. S., Alexandrov, I. V., Beyerlein, I. J., & Valiev, R. Z. (2006). Analysis of substructure evolution during simple shear of polycrystals by means of a combined viscoplastic self-consistent and disclination modeling approach. Acta Materialia, 54(4), 985-995. https://doi.org/10.1016/j.actamat.2005.10.025

Vancouver

Nazarov AA, Enikeev NA, Romanov AE, Orlova TS, Alexandrov IV, Beyerlein IJ et al. Analysis of substructure evolution during simple shear of polycrystals by means of a combined viscoplastic self-consistent and disclination modeling approach. Acta Materialia. 2006 Feb 1;54(4):985-995. https://doi.org/10.1016/j.actamat.2005.10.025

Author

Nazarov, A. A. ; Enikeev, N. A. ; Romanov, A. E. ; Orlova, T. S. ; Alexandrov, I. V. ; Beyerlein, I. J. ; Valiev, R. Z. / Analysis of substructure evolution during simple shear of polycrystals by means of a combined viscoplastic self-consistent and disclination modeling approach. In: Acta Materialia. 2006 ; Vol. 54, No. 4. pp. 985-995.

BibTeX

@article{835b8808c02d45869a34cefa41095384,
title = "Analysis of substructure evolution during simple shear of polycrystals by means of a combined viscoplastic self-consistent and disclination modeling approach",
abstract = "Microstructure development during severe plastic deformation by simple shear is modeled using a disclination model for substructure formation incorporated into the viscoplastic self-consistent (VPSC) polycrystal model. The strain incompatibilities between a homogeneous effective medium and a grain calculated by the VPSC model are assumed to result in an accumulation of disclinations at junctions of the grain. These disclinations are then relaxed by the growth of low-angle dislocation boundaries from the junctions. These boundaries split the grain into smaller, misoriented volumes which with further deformation can lead to its subdivision into new grains. The evolution of misorientation angles between the newly formed grains and the parent with applied straining agrees reasonably well with experimental misorientation angle distributions for geometrically necessary boundaries. Accounting for subgrain boundaries and grain subdivision results in textures after large strains that are more diffuse and lower in intensity than those predicted using standard VPSC modeling.",
keywords = "Disclinations, Grain refinement, Polycrystal plasticity, Severe plastic deformation (SPD), Texture",
author = "Nazarov, {A. A.} and Enikeev, {N. A.} and Romanov, {A. E.} and Orlova, {T. S.} and Alexandrov, {I. V.} and Beyerlein, {I. J.} and Valiev, {R. Z.}",
year = "2006",
month = feb,
day = "1",
doi = "10.1016/j.actamat.2005.10.025",
language = "English",
volume = "54",
pages = "985--995",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier",
number = "4",

}

RIS

TY - JOUR

T1 - Analysis of substructure evolution during simple shear of polycrystals by means of a combined viscoplastic self-consistent and disclination modeling approach

AU - Nazarov, A. A.

AU - Enikeev, N. A.

AU - Romanov, A. E.

AU - Orlova, T. S.

AU - Alexandrov, I. V.

AU - Beyerlein, I. J.

AU - Valiev, R. Z.

PY - 2006/2/1

Y1 - 2006/2/1

N2 - Microstructure development during severe plastic deformation by simple shear is modeled using a disclination model for substructure formation incorporated into the viscoplastic self-consistent (VPSC) polycrystal model. The strain incompatibilities between a homogeneous effective medium and a grain calculated by the VPSC model are assumed to result in an accumulation of disclinations at junctions of the grain. These disclinations are then relaxed by the growth of low-angle dislocation boundaries from the junctions. These boundaries split the grain into smaller, misoriented volumes which with further deformation can lead to its subdivision into new grains. The evolution of misorientation angles between the newly formed grains and the parent with applied straining agrees reasonably well with experimental misorientation angle distributions for geometrically necessary boundaries. Accounting for subgrain boundaries and grain subdivision results in textures after large strains that are more diffuse and lower in intensity than those predicted using standard VPSC modeling.

AB - Microstructure development during severe plastic deformation by simple shear is modeled using a disclination model for substructure formation incorporated into the viscoplastic self-consistent (VPSC) polycrystal model. The strain incompatibilities between a homogeneous effective medium and a grain calculated by the VPSC model are assumed to result in an accumulation of disclinations at junctions of the grain. These disclinations are then relaxed by the growth of low-angle dislocation boundaries from the junctions. These boundaries split the grain into smaller, misoriented volumes which with further deformation can lead to its subdivision into new grains. The evolution of misorientation angles between the newly formed grains and the parent with applied straining agrees reasonably well with experimental misorientation angle distributions for geometrically necessary boundaries. Accounting for subgrain boundaries and grain subdivision results in textures after large strains that are more diffuse and lower in intensity than those predicted using standard VPSC modeling.

KW - Disclinations

KW - Grain refinement

KW - Polycrystal plasticity

KW - Severe plastic deformation (SPD)

KW - Texture

UR - http://www.scopus.com/inward/record.url?scp=31044434075&partnerID=8YFLogxK

U2 - 10.1016/j.actamat.2005.10.025

DO - 10.1016/j.actamat.2005.10.025

M3 - Article

AN - SCOPUS:31044434075

VL - 54

SP - 985

EP - 995

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

IS - 4

ER -

ID: 45791751