Evolution de la texture d'un alliage à mémoire de forme TI-NI au cours de différents chargements thermomécaniques

Abstract : We present a study on Ti-Ni shape memory alloy (AMF) having 50% Ni. Different thermomecanic loadings were performed to know their influence on the martensitic and the austenitic states. X ray diffraction is chosen to analyse the concentration and the texture of each phase according to the loading path. Quantitative texture analysis using the vector method is applied to low symetrie material as the martensitic phase which has a monoclinic structure. We have developped a calculation method able to link orientations between the initial phase and the final one. This method allows to anticipe the texture obtained after loading and know the martensitic variants which are active during the loading process
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Mustapha Chaoui. Evolution de la texture d'un alliage à mémoire de forme TI-NI au cours de différents chargements thermomécaniques. Autre. Université Paul Verlaine - Metz, 1995. Français. ⟨NNT : 1995METZ017S⟩. ⟨tel-01776915⟩

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