Abstract
The effect of surface layer modification on the deformation-induced surface roughening in polycrystalline materials is investigated numerically. Three-dimensional constitutive models of as-received and surface-hardened polycrystals are constructed and implemented in finite-difference calculations. The free surface is shown to undergo out-of-plane displacements due to microscale stresses developing in the subsurface layer and acting across the free surface. The surface-hardened layer as thin as half the grain diameter efficiently suppresses grain-scale surface displacements. The thicker is the hardened layer, the smoother is the surface of the material.
| Original language | English |
|---|---|
| Pages (from-to) | 359-370 |
| Number of pages | 12 |
| Journal | Meccanica |
| Volume | 51 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Feb 2016 |
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Keywords
- Numerical simulation
- Plastic strain localization
- Surface hardening
- Surface roughening
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
A micromechanical analysis of deformation-induced surface roughening in surface-modified polycrystalline materials. / Romanova, Varvara; Balokhonov, Ruslan Revovich; Zinovieva, Olga.
In: Meccanica, Vol. 51, No. 2, 01.02.2016, p. 359-370.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A micromechanical analysis of deformation-induced surface roughening in surface-modified polycrystalline materials
AU - Romanova, Varvara
AU - Balokhonov, Ruslan Revovich
AU - Zinovieva, Olga
PY - 2016/2/1
Y1 - 2016/2/1
N2 - The effect of surface layer modification on the deformation-induced surface roughening in polycrystalline materials is investigated numerically. Three-dimensional constitutive models of as-received and surface-hardened polycrystals are constructed and implemented in finite-difference calculations. The free surface is shown to undergo out-of-plane displacements due to microscale stresses developing in the subsurface layer and acting across the free surface. The surface-hardened layer as thin as half the grain diameter efficiently suppresses grain-scale surface displacements. The thicker is the hardened layer, the smoother is the surface of the material.
AB - The effect of surface layer modification on the deformation-induced surface roughening in polycrystalline materials is investigated numerically. Three-dimensional constitutive models of as-received and surface-hardened polycrystals are constructed and implemented in finite-difference calculations. The free surface is shown to undergo out-of-plane displacements due to microscale stresses developing in the subsurface layer and acting across the free surface. The surface-hardened layer as thin as half the grain diameter efficiently suppresses grain-scale surface displacements. The thicker is the hardened layer, the smoother is the surface of the material.
KW - Numerical simulation
KW - Plastic strain localization
KW - Surface hardening
KW - Surface roughening
UR - http://www.scopus.com/inward/record.url?scp=84955203270&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84955203270&partnerID=8YFLogxK
U2 - 10.1007/s11012-015-0294-x
DO - 10.1007/s11012-015-0294-x
M3 - Article
AN - SCOPUS:84955203270
VL - 51
SP - 359
EP - 370
JO - Meccanica
JF - Meccanica
SN - 0025-6455
IS - 2
ER -