Numerical study of the surface-hardening effect on surface phenomena in 3D polycrystalline specimens

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	https://doi.org/10.1063/1.4901497
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

Keywords

3d polycrystalline models
Grain boundaries
Surface hardening
Surface roughening

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.4901497

Fingerprint Dive into the research topics of 'Numerical study of the surface-hardening effect on surface phenomena in 3D polycrystalline specimens'. Together they form a unique fingerprint.

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

Romanova, V, Balokhonov, RR, Zinovieva, O & Shakhijanov, V 2014, Numerical study of the surface-hardening effect on surface phenomena in 3D polycrystalline specimens. in AIP Conference Proceedings. vol. 1623, American Institute of Physics Inc., pp. 531-534, International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk, Russian Federation, 3.9.14. https://doi.org/10.1063/1.4901497

@inproceedings{f7367e67788743959c8040e913a1dcaf,

title = "Numerical study of the surface-hardening effect on surface phenomena in 3D polycrystalline specimens",

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.",

keywords = "3d polycrystalline models, Grain boundaries, Surface hardening, Surface roughening",

author = "Varvara Romanova and Ruslan Revovich Balokhonov and Olga Zinovieva and Valeriy Shakhijanov",

year = "2014",

doi = "10.1063/1.4901497",

language = "English",

isbn = "9780735412606",

volume = "1623",

pages = "531--534",

booktitle = "AIP Conference Proceedings",

publisher = "American Institute of Physics Inc.",

note = "International Conference on Physical Mesomechanics of Multilevel Systems 2014 ; Conference date: 03-09-2014 Through 05-09-2014",

}

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.

T2 - International Conference on Physical Mesomechanics of Multilevel Systems 2014

Y2 - 3 September 2014 through 5 September 2014

ER -