A model for TRIP steel constitutive behavior

    Research output: Contribution to journalArticleAcademicpeer-review

    1 Citation (Scopus)

    Abstract

    A constitutive model is developed for TRIP steel. This is a type of steel which contains three or four different phases in its microstructure. One of the phases in TRIP steels is metastable austenite (Retained Austenite) which transforms to martensite upon deformation. The accompanying transformation strain and the increase in hardness provide excellent formability characteristics. The phase transformation depends on the stress in the austenite, which is not equal to the overall stress. An estimate of the local stress in the austenite is obtained by homogenization of the response of the phases using a Mean-Field homogenization method. Overall stress strain results as well as stress strain results for individual phases are compared to measurements found in literature. The model can be used in finite element simulations of forming processes.

    Original languageEnglish
    Pages (from-to)1500-1504
    Number of pages5
    JournalAIP conference proceedings
    Volume1353
    DOIs
    Publication statusPublished - 1 Dec 2011

    Fingerprint

    austenite
    steels
    homogenizing
    martensite
    phase transformations
    hardness
    microstructure
    estimates
    simulation

    Keywords

    • Martensitic transformation
    • Mean field homogenization
    • TRIP

    Cite this

    @article{c94ebbcfd75b433082c2bf1a1f9e4772,
    title = "A model for TRIP steel constitutive behavior",
    abstract = "A constitutive model is developed for TRIP steel. This is a type of steel which contains three or four different phases in its microstructure. One of the phases in TRIP steels is metastable austenite (Retained Austenite) which transforms to martensite upon deformation. The accompanying transformation strain and the increase in hardness provide excellent formability characteristics. The phase transformation depends on the stress in the austenite, which is not equal to the overall stress. An estimate of the local stress in the austenite is obtained by homogenization of the response of the phases using a Mean-Field homogenization method. Overall stress strain results as well as stress strain results for individual phases are compared to measurements found in literature. The model can be used in finite element simulations of forming processes.",
    keywords = "Martensitic transformation, Mean field homogenization, TRIP",
    author = "E.S. Perdahcioǧlu and H.J.M. Geijselaers",
    year = "2011",
    month = "12",
    day = "1",
    doi = "10.1063/1.3589729",
    language = "English",
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    A model for TRIP steel constitutive behavior. / Perdahcioǧlu, E.S.; Geijselaers, H.J.M.

    In: AIP conference proceedings, Vol. 1353, 01.12.2011, p. 1500-1504.

    Research output: Contribution to journalArticleAcademicpeer-review

    TY - JOUR

    T1 - A model for TRIP steel constitutive behavior

    AU - Perdahcioǧlu, E.S.

    AU - Geijselaers, H.J.M.

    PY - 2011/12/1

    Y1 - 2011/12/1

    N2 - A constitutive model is developed for TRIP steel. This is a type of steel which contains three or four different phases in its microstructure. One of the phases in TRIP steels is metastable austenite (Retained Austenite) which transforms to martensite upon deformation. The accompanying transformation strain and the increase in hardness provide excellent formability characteristics. The phase transformation depends on the stress in the austenite, which is not equal to the overall stress. An estimate of the local stress in the austenite is obtained by homogenization of the response of the phases using a Mean-Field homogenization method. Overall stress strain results as well as stress strain results for individual phases are compared to measurements found in literature. The model can be used in finite element simulations of forming processes.

    AB - A constitutive model is developed for TRIP steel. This is a type of steel which contains three or four different phases in its microstructure. One of the phases in TRIP steels is metastable austenite (Retained Austenite) which transforms to martensite upon deformation. The accompanying transformation strain and the increase in hardness provide excellent formability characteristics. The phase transformation depends on the stress in the austenite, which is not equal to the overall stress. An estimate of the local stress in the austenite is obtained by homogenization of the response of the phases using a Mean-Field homogenization method. Overall stress strain results as well as stress strain results for individual phases are compared to measurements found in literature. The model can be used in finite element simulations of forming processes.

    KW - Martensitic transformation

    KW - Mean field homogenization

    KW - TRIP

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    JF - AIP conference proceedings

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