The damage evolution and failure process of pre-corroded additive manufacturing AlSi10Mg through in-situ tensile experiments under an optical microscope and micro-scale digital image correlation(μ-DIC) were investigates . Combining the microscopic deformation field evolution,material microstructure,three-dimensional corrosion morphology and fracture microscopic morphology to analyze the initiation and propagation of micro-cracks in pre-corroded AlSi10Mg. The results show that the stress concentration around the corrosion pits and subsurface defects(caused by the additive manufacturing process) leads to the initiation of micro-cracks. There are multiple micro-cracks initiating at the same time,and the propagation and coalescence of micro-cracks originated from the key damage regions dominate the final failure of the specimen. Material micro-structure and corrosion morphology have an important influence on crack propagation.


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    Titel :

    Effect of pre-corrosion based on micro-scale digital image correlation on damage failure of additive manufacturing AlSi10Mg


    Beteiligte:
    JIANG Sheng (Autor:in) / DU Juan (Autor:in) / SONG Haipeng (Autor:in)


    Erscheinungsdatum :

    2024




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt




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