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

Carine Duda, Anne-Françoise Gourgues

To cite this version:

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

Electron backscatter diffraction characterisation of liquid route processed Ti6242S/SCS-6 composites Abstract : 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 TiC 1-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.