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Damage observation in a high-manganese austenitic TWIP steel by synchrotron radiation computed tomography

Abstract : Internal damage below the fracture surface of a multiaxial specimen made of twinning-induced plasticity (TWIP) steel was observed by three-dimensional X-ray microtomography as very elongated “primary” voids. Specific tools for the local damage analysis were developed. A gradient in void volume fraction was measured from the fracture surface down to the bulk of the scanned volume (from not, vert, similar0.06% to <0.02%). However, the fracture surface is mainly composed of tiny secondary dimples (>90% in area fraction), indicating strongly localized final fracture.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00541294
Contributeur : Bibliothèque Umr7633 <>
Soumis le : mardi 30 novembre 2010 - 12:03:41
Dernière modification le : samedi 19 septembre 2020 - 04:31:57

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Julie Lorthios, Franck N'Guyen, Anne-Françoise Gourgues-Lorenzon, Thilo F. Morgeneyer, P. Cugy. Damage observation in a high-manganese austenitic TWIP steel by synchrotron radiation computed tomography. Scripta Materialia, Elsevier, 2010, 63, pp.1220-1223. ⟨10.1016/j.scriptamat.2010.08.042⟩. ⟨hal-00541294⟩

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