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

Varvara Romanova, Ruslan Revovich Balokhonov, Olga Zinovieva, Valeriy Shakhijanov

    Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

    2 Цитирования (Scopus)

    Аннотация

    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.

    Язык оригиналаАнглийский
    Название основной публикацииAIP Conference Proceedings
    ИздательAmerican Institute of Physics Inc.
    Страницы531-534
    Число страниц4
    Том1623
    ISBN (печатное издание)9780735412606
    DOI
    СостояниеОпубликовано - 2014
    СобытиеInternational Conference on Physical Mesomechanics of Multilevel Systems 2014 - Tomsk, Российская Федерация
    Продолжительность: 3 сен 20145 сен 2014

    Другое

    ДругоеInternational Conference on Physical Mesomechanics of Multilevel Systems 2014
    СтранаРоссийская Федерация
    ГородTomsk
    Период3.9.145.9.14

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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  • Цитировать

    Romanova, V., Balokhonov, RR., Zinovieva, O., & Shakhijanov, V. (2014). Numerical study of the surface-hardening effect on surface phenomena in 3D polycrystalline specimens. В AIP Conference Proceedings (Том 1623, стр. 531-534). American Institute of Physics Inc.. https://doi.org/10.1063/1.4901497