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    Vibration Fatigue Assessment of Additive Manufactured Nickel Alloy With Inherent Damping

    Source: Journal of Engineering for Gas Turbines and Power:;2021:;volume( 143 ):;issue: 010::page 0101009-1
    Author:
    Scott-Emuakpor, Onome
    ,
    Sheridan, Luke
    ,
    Runyon, Brian
    ,
    George, Tommy
    DOI: 10.1115/1.4051489
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The fatigue life behavior and internal surface conditions of inherently damped additive manufactured (AM) specimens subjected to vibration bending are under investigation. This study supports research that demonstrated 95% vibration suppression due to damping capability of AM components with 1–3% internal volume of unfused powder; however, the viability of fatigue performance is unknown. The following effort explores whether internal wall damage caused by unfused powder particle motion debits fatigue life. Comparisons between the fatigue behaviors of unfused powder pocket and fully fused nickel based alloy 718 specimens confirms a long suspected powder interaction phenomena critical to damping performance.
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      Vibration Fatigue Assessment of Additive Manufactured Nickel Alloy With Inherent Damping

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4278199
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    contributor authorScott-Emuakpor, Onome
    contributor authorSheridan, Luke
    contributor authorRunyon, Brian
    contributor authorGeorge, Tommy
    date accessioned2022-02-06T05:31:05Z
    date available2022-02-06T05:31:05Z
    date copyright9/3/2021 12:00:00 AM
    date issued2021
    identifier issn0742-4795
    identifier othergtp_143_10_101009.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4278199
    description abstractThe fatigue life behavior and internal surface conditions of inherently damped additive manufactured (AM) specimens subjected to vibration bending are under investigation. This study supports research that demonstrated 95% vibration suppression due to damping capability of AM components with 1–3% internal volume of unfused powder; however, the viability of fatigue performance is unknown. The following effort explores whether internal wall damage caused by unfused powder particle motion debits fatigue life. Comparisons between the fatigue behaviors of unfused powder pocket and fully fused nickel based alloy 718 specimens confirms a long suspected powder interaction phenomena critical to damping performance.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleVibration Fatigue Assessment of Additive Manufactured Nickel Alloy With Inherent Damping
    typeJournal Paper
    journal volume143
    journal issue10
    journal titleJournal of Engineering for Gas Turbines and Power
    identifier doi10.1115/1.4051489
    journal fristpage0101009-1
    journal lastpage0101009-7
    page7
    treeJournal of Engineering for Gas Turbines and Power:;2021:;volume( 143 ):;issue: 010
    contenttypeFulltext
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