Article ID Journal Published Year Pages File Type
1500368 Scripta Materialia 2010 4 Pages PDF
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 ∼0.06% to <0.02%). However, the fracture surface is mainly composed of tiny secondary dimples (>90% in area fraction), indicating strongly localized final fracture.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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