Micromechanical modeling of polycrystalline high manganese austenitic steel subjected to abrasive contact

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    This study focuses on microstructural and micromechanical modeling of abrasive sliding contacts of wear-resistant Hadfield steel. 3D finite element representation of the microstructure was employed with a crystal plasticity model including dislocation slip, deformation twinning, and their interactions. The results showed that deformation twinning interacting with dislocations had a key role in the surface hardening of the material, and it was also important for the early hardening process of the sub-surface grains beyond the heavily distorted surface grains. The effects of grain orientation and microstructural features were discussed and analyzed according to the micromechanical model to give a perspective to the anisotropy of the material and the feasibility of using micromechanics in virtual material design.
    Original languageEnglish
    Number of pages17
    JournalFriction
    DOIs
    Publication statusPublished - Dec 2019
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Austenitic steel
    Manganese
    Abrasives
    Twinning
    Dislocations (crystals)
    Hardening
    Micromechanics
    Steel
    Plasticity
    Anisotropy
    Wear of materials
    Crystals
    Microstructure
    austenitic steel

    Keywords

    • crystal plasticity
    • micromechanical modeling of abrasion
    • austenitic manganese steel
    • deformation twinning

    Cite this

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    title = "Micromechanical modeling of polycrystalline high manganese austenitic steel subjected to abrasive contact",
    abstract = "This study focuses on microstructural and micromechanical modeling of abrasive sliding contacts of wear-resistant Hadfield steel. 3D finite element representation of the microstructure was employed with a crystal plasticity model including dislocation slip, deformation twinning, and their interactions. The results showed that deformation twinning interacting with dislocations had a key role in the surface hardening of the material, and it was also important for the early hardening process of the sub-surface grains beyond the heavily distorted surface grains. The effects of grain orientation and microstructural features were discussed and analyzed according to the micromechanical model to give a perspective to the anisotropy of the material and the feasibility of using micromechanics in virtual material design.",
    keywords = "crystal plasticity, micromechanical modeling of abrasion, austenitic manganese steel, deformation twinning",
    author = "Matti Lindroos and Anssi Laukkanen and Tom Andersson",
    year = "2019",
    month = "12",
    doi = "10.1007/s40544-019-0315-1",
    language = "English",
    journal = "Friction",
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    AB - This study focuses on microstructural and micromechanical modeling of abrasive sliding contacts of wear-resistant Hadfield steel. 3D finite element representation of the microstructure was employed with a crystal plasticity model including dislocation slip, deformation twinning, and their interactions. The results showed that deformation twinning interacting with dislocations had a key role in the surface hardening of the material, and it was also important for the early hardening process of the sub-surface grains beyond the heavily distorted surface grains. The effects of grain orientation and microstructural features were discussed and analyzed according to the micromechanical model to give a perspective to the anisotropy of the material and the feasibility of using micromechanics in virtual material design.

    KW - crystal plasticity

    KW - micromechanical modeling of abrasion

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    KW - deformation twinning

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