Neutron diffraction study of elastoplastic behaviour of Al/SiCp metal matrix composite during tensile loading and unloading

Sebastian Wroński, Andrzej Baczmański, Anita Gaj, Krzysztof Wierzbanowski, Michael E. Fitzpatrick, Vincent Klosek, Alain Lodini, Marianna Marciszko

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding

    1 Citation (Scopus)

    Abstract

    The aim of the present work is to study effects occurring during elastoplastic deformation and unloading of Al/SiCp metal-matrix composite material. We have measured lattice strains for both phases independently using two separated diffraction peaks (the {111} reflections of Al and SiC) during in situ tensile testing. Lattice strains were measured in the direction parallel to the applied load. The results were compared with an elastoplastic model in order to find parameters determining the plastic deformation of the Al matrix (critical resolved shear stress and hardening parameter). We have found that during initial deformation relaxation of the thermal stresses occurs in both phases. Afterwards, the distribution of strains measured during the in situ test and unloading of the sample agree very well with self-consistent model predictions.

    Original languageEnglish
    Title of host publicationMechanical Stress Evaluation by Neutrons and Synchrotron Radiation VI
    Pages117-121
    Number of pages5
    Volume772
    DOIs
    Publication statusPublished - 2014
    Event6th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation - Hamburg, Germany
    Duration: 7 Sep 20119 Sep 2011

    Publication series

    NameMaterials Science Forum
    Volume772
    ISSN (Print)02555476

    Conference

    Conference6th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation
    Abbreviated titleMECA SENS VI 2011
    CountryGermany
    CityHamburg
    Period7/09/119/09/11

    Keywords

    • Elasto-plastic deformation
    • Metal matrix composite
    • Residual stress
    • Self-consistent model
    • Tensile load
    • X-ray diffraction

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanical Engineering
    • Mechanics of Materials

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  • Cite this

    Wroński, S., Baczmański, A., Gaj, A., Wierzbanowski, K., Fitzpatrick, M. E., Klosek, V., ... Marciszko, M. (2014). Neutron diffraction study of elastoplastic behaviour of Al/SiCp metal matrix composite during tensile loading and unloading. In Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation VI (Vol. 772, pp. 117-121). (Materials Science Forum; Vol. 772). https://doi.org/10.4028/www.scientific.net/MSF.772.117