Electron backscatter diffraction characterisation of liquid route processed Ti6242S/SCS-6 composites

Carine Duda (1) , Anne-Françoise Gourgues (2)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 CDM - Centre des Matériaux

Liquid route processed filamentary titanium matrix composites reinforced by ceramic filaments were investigated using electron backscatter diffraction and high resolution scanning electron microscopy. As-processed filamentary materials possess a metastable microstructure with martensitic α + retained β matrix and small sub-stoichiometric TiC1−x precipitates at the fibre/matrix interface. The heat treatment induced morphological and crystallographic modification of carbides and coarsening of the matrix. The analysis method was also used to validate a simulation route to obtain bulk materials having similar microstructural properties.

Mots clés: Titanium matrix composite; Electron backscatter diffraction; Phase transformations; Filament/matrix interface; Titanium carbide

Domaines: Matériaux

Carine Duda, Anne-Françoise Gourgues. Electron backscatter diffraction characterisation of liquid route processed Ti6242S/SCS-6 composites. Materials Science and Engineering: A, 2006, 435-436, pp.530-539. ⟨10.1016/j.msea.2006.07.038⟩. ⟨hal-00111071⟩