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    General methodology to estimate the dislocation density from microhardness measurements

    Access Status
    Fulltext not available
    Authors
    Ameri, Ali Abbas Hussei
    Elewa, N.
    Ashraf, M.
    Escobedo-Diaz, J.
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Ameri, A.A.H. and Elewa, N. and Ashraf, M. and Escobedo-Diaz, J. 2017. General methodology to estimate the dislocation density from microhardness measurements. Materials Characterization. 131: pp. 324-330.
    Source Title
    Materials Characterization
    DOI
    10.1016/j.matchar.2017.06.031
    ISSN
    1044-5803
    School
    John de Laeter Centre
    URI
    http://hdl.handle.net/20.500.11937/71320
    Collection
    • Curtin Research Publications
    Abstract

    © 2017 Elsevier Inc. A general methodology to estimate dislocation density in cubic metals using microhardness measurements has been established. The proposed methodology is based on the Indention Size Effect (ISE) and microstructural strengthening mechanisms. The methodology was validated using published experimental data of a pure Nickel (FCC) and Tungsten (BCC), as well as our own data on dual phase (BCC and FCC) lean duplex stainless steel 2101(LDSS 2101). The estimations of dislocation densities for LDSS 2101 phases were confirmed via X-ray diffraction measurements. Our results collectively validated the proposed approach as a general method to estimate dislocation density with acceptable accuracy.

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