Microstructural and mechanical comparison of Ti+15%TiCp composites prepared by free sintering, HIP and extrusion

Jean-Baptiste Fruhauf; J. Roger; Olivier Dezellus; Sophie Gourdet; N. Karnatak; Nathalie Peillon; Sébastien Saunier; Frank Montheillet; Christophe Desrayaud

doi:10.1016/j.msea.2012.05.096

Journal articles

Microstructural and mechanical comparison of Ti+15%TiCp composites prepared by free sintering, HIP and extrusion

Jean-Baptiste Fruhauf ^{1, 2, *} J. Roger ³ Olivier Dezellus ³ Sophie Gourdet ⁴ N. Karnatak ⁵ Nathalie Peillon ^{1, 2} Sébastien Saunier ^{2, 6} Frank Montheillet ^{1, 2} Christophe Desrayaud ^{1, 2}

* Corresponding author

1 RMT-ENSMSE - Département Rhéologie, Microstructure, Thermomécanique

2 LCG-ENSMSE - UMR 5146 - Laboratoire Claude Goux

3 LMI - Laboratoire des Multimatériaux et Interfaces

4 EADS Innovation Works [Toulouse]

5 Mecachrome

6 MPE-ENSMSE - Département Mécanique et Procédés d'Elaboration

Abstract : Ti +15%TiCp composites were prepared by three different powder metallurgy techniques: free sintering, HIPing and direct powder extrusion. The microstructures and textures were characterized by EBSD while the Ti/TiC reaction, which takes place during heat treatment, was characterized using X-ray diffraction and Rietveld analysis. The mechanical properties were obtained by the mean of tensile tests. TiC particles effectively reinforce the strength of the Ti matrix by at least 40% indicating the Ti/TiC reaction did not deteriorate the mechanical properties. The correlation between the microstructural features and the mechanical properties is discussed and the processes are compared. Direct powder extrusion was shown to be the most suitable process to obtain ductile composites (epsilon = 4.6%).

Keywords : Titanium matrix composites Powder metallurgy EBSD Ti/TIC reaction Microstructure Mechanical properties . TITANIUM MATRIX COMPOSITES REINFORCED TITANIUM TI-C BEHAVIOR TEXTURE TI6AL4V/TIC/10P DIFFRACTION FRACTURE ALLOYS

Document type :

Journal articles

Domain :

Chemical Sciences / Material chemistry

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https://hal-emse.ccsd.cnrs.fr/emse-00829389
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Submitted on : Monday, June 3, 2013 - 11:17:31 AM
Last modification on : Wednesday, June 24, 2020 - 4:19:08 PM

Microstructural and mechanical comparison of Ti+15%TiCp composites prepared by free sintering, HIP and extrusion

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Microstructural and mechanical comparison of Ti+15%TiCp composites prepared by free sintering, HIP and extrusion

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