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.


    Access

    Download


    Export, share and cite



    Title :

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


    Contributors:
    JIANG Sheng (author) / DU Juan (author) / SONG Haipeng (author)


    Publication date :

    2024




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown





    In-Situ Monitoring of Additive Manufacturing using Digital Image Correlation

    Jani, Martina / Chava, Sandeep / Namilae, Sirish | AIAA | 2022


    In-Situ Monitoring of Additive Manufacturing Using Digital Image Correlation

    Jani, Martina / Chava, Sandeep / Namilae, Sirish | TIBKAT | 2022



    Qualification development of AlSi10Mg for robotic spaceflight

    Shapiro-Scharlotta, Andrew A. / Weinstock, D. / Borgonia, J.P. et al. | NTRS | 2017