High temperature tensile and fatigue behaviour of the unidirectionally reinforced MMC Ti64/SiC

The material employed in the present work is a Ti6Al4V matrix composite unidirectionally reinforced with eight plies of SiC fibres. This paper studies the tensile behaviour and the fatigue fracture processes at the operation temperatures planned for these materials (550 and 600 °C). The fractographi...

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Bibliographic Details
Published in:Engineering fracture mechanics 2003-10, Vol.70 (15), p.2137-2148
Main Authors: Garcı́a-Leiva, M.C., Ocaña, I., Martı́n-Meizoso, A., Martı́nez-Esnaola, J.M., Marqués, V., Heredero, F.
Format: Article
Language:English
Subjects:
Fatigue tests
Fractography
Fracture mechanisms
High temperature
MMCs
Tensile tests
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Summary:The material employed in the present work is a Ti6Al4V matrix composite unidirectionally reinforced with eight plies of SiC fibres. This paper studies the tensile behaviour and the fatigue fracture processes at the operation temperatures planned for these materials (550 and 600 °C). The fractographic analysis and microstructural observations of the tested samples at both temperatures are also presented. These are used to determine the mechanisms of nucleation and propagation of damage until fracture.
ISSN:0013-7944
1873-7315
DOI:10.1016/S0013-7944(02)00238-2