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