Abstract
A three-dimensional numerical analysis is performed of the deformation-induced roughening in polycrystalline specimens with and without surface-hardened layers. Three-dimensional microstructure-based constitutive models are developed, using crystal plasticity, and employed in finite element calculations of uniaxial tension. Grain structure is shown to be responsible for free surface roughening under uniaxial loading. Microscale stresses acting normally to the free surface in the bulk of the material are associated with normal displacements. The surface-hardened layer moves the grain structure away from the free surface, smoothing out the microscale folds formed due to displacements of individual grains, while the mesoscale surface undulations remain clearly visible.
| Original language | English |
|---|---|
| Pages (from-to) | 96-102 |
| Number of pages | 7 |
| Journal | Computational Materials Science |
| Volume | 116 |
| DOIs | |
| Publication status | Published - 15 Apr 2016 |
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Keywords
- Crystal plasticity
- Deformation-induced roughening
- Microstructure-based simulation
- Surface hardening
- Titanium alloys
ASJC Scopus subject areas
- Computer Science(all)
- Chemistry(all)
- Materials Science(all)
- Mechanics of Materials
- Physics and Astronomy(all)
- Computational Mathematics
Cite this
Numerical study of the surface hardening effect on the deformation-induced roughening in titanium polycrystals. / Romanova, Varvara; Balokhonov, Ruslan Revovich; Zinovieva, Olga; Shakhidjanov, Valery.
In: Computational Materials Science, Vol. 116, 15.04.2016, p. 96-102.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Numerical study of the surface hardening effect on the deformation-induced roughening in titanium polycrystals
AU - Romanova, Varvara
AU - Balokhonov, Ruslan Revovich
AU - Zinovieva, Olga
AU - Shakhidjanov, Valery
PY - 2016/4/15
Y1 - 2016/4/15
N2 - A three-dimensional numerical analysis is performed of the deformation-induced roughening in polycrystalline specimens with and without surface-hardened layers. Three-dimensional microstructure-based constitutive models are developed, using crystal plasticity, and employed in finite element calculations of uniaxial tension. Grain structure is shown to be responsible for free surface roughening under uniaxial loading. Microscale stresses acting normally to the free surface in the bulk of the material are associated with normal displacements. The surface-hardened layer moves the grain structure away from the free surface, smoothing out the microscale folds formed due to displacements of individual grains, while the mesoscale surface undulations remain clearly visible.
AB - A three-dimensional numerical analysis is performed of the deformation-induced roughening in polycrystalline specimens with and without surface-hardened layers. Three-dimensional microstructure-based constitutive models are developed, using crystal plasticity, and employed in finite element calculations of uniaxial tension. Grain structure is shown to be responsible for free surface roughening under uniaxial loading. Microscale stresses acting normally to the free surface in the bulk of the material are associated with normal displacements. The surface-hardened layer moves the grain structure away from the free surface, smoothing out the microscale folds formed due to displacements of individual grains, while the mesoscale surface undulations remain clearly visible.
KW - Crystal plasticity
KW - Deformation-induced roughening
KW - Microstructure-based simulation
KW - Surface hardening
KW - Titanium alloys
UR - http://www.scopus.com/inward/record.url?scp=84959572367&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84959572367&partnerID=8YFLogxK
U2 - 10.1016/j.commatsci.2015.09.045
DO - 10.1016/j.commatsci.2015.09.045
M3 - Article
AN - SCOPUS:84959572367
VL - 116
SP - 96
EP - 102
JO - Computational Materials Science
JF - Computational Materials Science
SN - 0927-0256
ER -