Abstract
Surface hardening effect on the mesoscale surface deformation in polycrystalline specimens subjected to uniaxial tension is numerically studied. Basing on the experimental findings, three-dimensional microstructure-based constitutive models of the unhardened and surface-hardened polycrystalline specimens are constructed. The mechanical behavior of the polycrystalline models is analysed numerically by the finite-difference method. The grain structure is shown to be responsible for the free surface roughening under uniaxial loading. Microscale stresses acting in the bulk of the material across the free surface give rise to the formation of surface ridges and valleys. The hardened layer in a surface-hardened specimen moves the grain structure away from the free surface, thus smoothing out the microscale folds caused by displacements of individual grains. The thicker is the modified layer, the smoother is the surface relief.
| Original language | English |
|---|---|
| Title of host publication | AIP Conference Proceedings |
| Publisher | American Institute of Physics Inc. |
| Pages | 531-534 |
| Number of pages | 4 |
| Volume | 1623 |
| ISBN (Print) | 9780735412606 |
| DOIs | |
| Publication status | Published - 2014 |
| Event | International Conference on Physical Mesomechanics of Multilevel Systems 2014 - Tomsk, Russian Federation Duration: 3 Sep 2014 → 5 Sep 2014 |
Other
| Other | International Conference on Physical Mesomechanics of Multilevel Systems 2014 |
|---|---|
| Country | Russian Federation |
| City | Tomsk |
| Period | 3.9.14 → 5.9.14 |
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Keywords
- 3d polycrystalline models
- Grain boundaries
- Surface hardening
- Surface roughening
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Numerical study of the surface-hardening effect on surface phenomena in 3D polycrystalline specimens. / Romanova, Varvara; Balokhonov, Ruslan Revovich; Zinovieva, Olga; Shakhijanov, Valeriy.
AIP Conference Proceedings. Vol. 1623 American Institute of Physics Inc., 2014. p. 531-534.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Numerical study of the surface-hardening effect on surface phenomena in 3D polycrystalline specimens
AU - Romanova, Varvara
AU - Balokhonov, Ruslan Revovich
AU - Zinovieva, Olga
AU - Shakhijanov, Valeriy
PY - 2014
Y1 - 2014
N2 - Surface hardening effect on the mesoscale surface deformation in polycrystalline specimens subjected to uniaxial tension is numerically studied. Basing on the experimental findings, three-dimensional microstructure-based constitutive models of the unhardened and surface-hardened polycrystalline specimens are constructed. The mechanical behavior of the polycrystalline models is analysed numerically by the finite-difference method. The grain structure is shown to be responsible for the free surface roughening under uniaxial loading. Microscale stresses acting in the bulk of the material across the free surface give rise to the formation of surface ridges and valleys. The hardened layer in a surface-hardened specimen moves the grain structure away from the free surface, thus smoothing out the microscale folds caused by displacements of individual grains. The thicker is the modified layer, the smoother is the surface relief.
AB - Surface hardening effect on the mesoscale surface deformation in polycrystalline specimens subjected to uniaxial tension is numerically studied. Basing on the experimental findings, three-dimensional microstructure-based constitutive models of the unhardened and surface-hardened polycrystalline specimens are constructed. The mechanical behavior of the polycrystalline models is analysed numerically by the finite-difference method. The grain structure is shown to be responsible for the free surface roughening under uniaxial loading. Microscale stresses acting in the bulk of the material across the free surface give rise to the formation of surface ridges and valleys. The hardened layer in a surface-hardened specimen moves the grain structure away from the free surface, thus smoothing out the microscale folds caused by displacements of individual grains. The thicker is the modified layer, the smoother is the surface relief.
KW - 3d polycrystalline models
KW - Grain boundaries
KW - Surface hardening
KW - Surface roughening
UR - http://www.scopus.com/inward/record.url?scp=84915737295&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84915737295&partnerID=8YFLogxK
U2 - 10.1063/1.4901497
DO - 10.1063/1.4901497
M3 - Conference contribution
AN - SCOPUS:84915737295
SN - 9780735412606
VL - 1623
SP - 531
EP - 534
BT - AIP Conference Proceedings
PB - American Institute of Physics Inc.
ER -