Crack propagation in metallic glass ribbon as a function of the position of stress concentrators

Mária Huráková, Kornel Csach, Jozef Miškuf, Alena Juríková, Václav Ocelík, Jeff Th M De Hosson

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    Abstract

    An amorphous metallic ribbon of Fe40Ni40B20 was used for in-situ observation of the crack propagation and shear band formation during tensile tests. Prior to the tensile tests, two holes (with different positions with respect to the tensile axis) were made by laser ablation as stress concentrators. The nucleation and propagation of shear bands on the ribbon surface during tensile tests were analysed with scanning electron microscopy (SEM). At room temperature inhomogeneous plastic deformation of amorphous alloy occurs via the development of primary and secondary shear bands. The influence of the different loading geometry on the topology of shear bands and crack propagation was studied.

    Original languageEnglish
    Title of host publicationMetallography XVI
    PublisherTRANS TECH PUBLICATIONS LTD
    Pages494-499
    Number of pages6
    Volume891 MSF
    ISBN (Print)9783035710182
    DOIs
    Publication statusPublished - 2017
    Event16th International Symposium on Metallography and Materials Science, 2016 - Stará Lesná, Slovakia
    Duration: 20-Apr-201622-Apr-2016

    Publication series

    NameMaterials Science Forum
    Volume891 MSF
    ISSN (Print)02555476

    Conference

    Conference16th International Symposium on Metallography and Materials Science, 2016
    Country/TerritorySlovakia
    CityStará Lesná
    Period20/04/201622/04/2016

    Keywords

    • Amorphous alloy
    • In-situ tensile
    • Plastic deformation
    • Shear bands

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