X-ray micro-tomography an attractive characterisation technique in materials science

S Salvo (1) , C Cloetens (2) , Éric Maire (3) , S Zabler (2) , J.J Blandin (1) , Jean-Yves Buffiere (4, 3) , Wolfgang Ludwig (2) , E Boller (5) , D Bellet (1) , C Josserond (1)

1 GPM2 - Génie physique et mécanique des matériaux
2 ESRF - European Synchrotron Radiation Facility [Grenoble]
3 MATEIS - Matériaux, ingénierie et science [Villeurbanne]
4 GEMPPM - Groupe d'Etudes de Métallurgie Physique et Physique des Matériaux
5 ESRF - European Synchrotron Radiation Facility

X-ray tomography is a non-destructive technique which provides 3D information of materials. It is consequently very attractive in Materials Science since the relation between macroscopic properties and the micro-structure of a material is very frequently required. The aim of this paper is to present selected results obtained in various investigations of metallic materials such as superplastic deformation, materials in the semi-solid state and metallic foams. Depending on the studied features, several tomography analysis modes were used: conventional absorption mode, phase contrast and holotomography, a new technique, which provides the 3D distribution of the electron density in the bulk of the material. Furthermore micro-tomography enables one to perform in situ experiments either by using a mechanical test machine or a furnace.

Domaines: Matériaux

S Salvo, C Cloetens, Éric Maire, S Zabler, J.J Blandin, et al.. X-ray micro-tomography an attractive characterisation technique in materials science. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2003, 200, pp.273 - 286. ⟨10.1016/S0168-583X(02)01689-0⟩. ⟨hal-01537625⟩