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  • Oxide inclusions in laser a...
    Lou, Xiaoyuan; Andresen, Peter L.; Rebak, Raul B.

    Journal of nuclear materials, February 2018, 2018-02-00, 20180201, 2018-02-01, Letnik: 499, Številka: C
    Journal Article

    Intergranular and intragranular Si and Mn rich oxide inclusions are present in laser additive manufactured austenitic stainless steel. The uniform oxide dispersions in additive manufactured material promoted early initiation of microvoids and reduced its impact toughness relative to powder metallurgy (hot isostatic pressing) and wrought materials. For stress corrosion cracking in high temperature water, the silica inclusions along the grain boundaries preferentially dissolved and appeared to accelerate oxidation and caused extensive crack branching. Display omitted