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

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}

* Auteur correspondant

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

Type de document :

Article dans une revue

Materials Science and Engineering: A, Elsevier, 2012, 554, pp.22-32. 〈10.1016/j.msea.2012.05.096〉

Domaine :

Chimie / Matériaux

Liste complète des métadonnées

https://hal-emse.ccsd.cnrs.fr/emse-00829389
Contributeur : Anna Fraczkiewicz <>
Soumis le : lundi 3 juin 2013 - 11:17:31
Dernière modification le : vendredi 20 avril 2018 - 15:46:01

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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