Numerical study of the surface hardening effect on the deformation-induced roughening in titanium polycrystals

Varvara Romanova, Ruslan Revovich Balokhonov, Olga Zinovieva, Valery Shakhidjanov

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    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 languageEnglish
    Pages (from-to)96-102
    Number of pages7
    JournalComputational Materials Science
    Volume116
    DOIs
    Publication statusPublished - 15 Apr 2016

    Fingerprint

    Polycrystal
    Titanium
    Polycrystals
    polycrystals
    Hardening
    hardening
    Free Surface
    Numerical Study
    titanium
    microbalances
    Crystal Plasticity
    surface layers
    Three-dimensional
    Dimensional Analysis
    Crystal microstructure
    Constitutive Model
    Smoothing
    Numerical Analysis
    Microstructure
    Fold

    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 journalArticle

    Romanova, Varvara ; Balokhonov, Ruslan Revovich ; Zinovieva, Olga ; Shakhidjanov, Valery. / Numerical study of the surface hardening effect on the deformation-induced roughening in titanium polycrystals. In: Computational Materials Science. 2016 ; Vol. 116. pp. 96-102.
    @article{8367deb4a03743da8a1d5c0528b92e47,
    title = "Numerical study of the surface hardening effect on the deformation-induced roughening in titanium polycrystals",
    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.",
    keywords = "Crystal plasticity, Deformation-induced roughening, Microstructure-based simulation, Surface hardening, Titanium alloys",
    author = "Varvara Romanova and Ruslan Revovich Balokhonov and Olga Zinovieva and Valery Shakhidjanov",
    year = "2016",
    month = "4",
    day = "15",
    doi = "10.1016/j.commatsci.2015.09.045",
    language = "English",
    volume = "116",
    pages = "96--102",
    journal = "Computational Materials Science",
    issn = "0927-0256",
    publisher = "Elsevier",

    }

    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

    VL - 116

    SP - 96

    EP - 102

    JO - Computational Materials Science

    JF - Computational Materials Science

    SN - 0927-0256

    ER -