High-temperature deformation followed in situ by X-ray microtomography: a methodology to track features under large strain

Pierre Lhuissier (1) , Therese Bormann (1) , Guillaume Pelloux (1) , Xavier Bataillon (1) , Franck Pelloux (1) , Charles Josserond (1) , Pauline Gravier (1) , Jean-Jacques Blandin (1) , Elodie Boller (2) , Luc Salvo (1)

1 SIMaP - Science et Ingénierie des Matériaux et Procédés
2 ESRF - European Synchrotron Radiation Facility [Grenoble]

Metallic materials processing such as rolling, extrusion or forging, often involves high temperature deformation. Usually in such conditions samples are characterized in postmortem conditions, in pseudo in situ condition with interrupted tests or in situ with limited strain rate. A full in situ 3D characterization, namely directly during high temperature deformation with a prescribed strain rate scheme, requires a dedicated sample environment and a dedicated image analysis workflow. A specific sample environment has been developed to be able to conduct highly controlled (temperature and strain rate) high temperature deformation mechanical testing while performing in situ

Mots clés: in situ microtomography; high temperature deformation; large strain; digital volume correlation

Domaines: Matériaux

Pierre Lhuissier, Therese Bormann, Guillaume Pelloux, Xavier Bataillon, Franck Pelloux, et al.. High-temperature deformation followed in situ by X-ray microtomography: a methodology to track features under large strain. Journal of Synchrotron Radiation, 2021, 28, pp.530 - 537. ⟨10.1107/s1600577521001107⟩. ⟨hal-03427096⟩