Dynamic densification of metal matrix-coated fibre composites: modelling and processing

H-X Peng, FPE Dunne, PS Grant, B Cantor

Research output: Contribution to journalArticle (Academic Journal)peer-review

13 Citations (Scopus)

Abstract

The consolidation processing of Ti–6Al–4V matrix-coated fibre (MCF) composite under vacuum hot pressing (VHP) has been investigated. A new test methodology has been developed for the determination of in situ matrix coating creep properties. In using the methodology, only a single, simple test is required, together with finite element modelling of the single fibre compression test. The creep coefficient and stress index have been determined for electron beam evaporated physical vapour deposited Ti–6Al–4V at 900 °C to be 1.23 × 10−5 and 1.3, respectively. Consolidation experiments have been carried out on multi-ply MCF arrays under vacuum hot pressing. Finite element models have been developed for the dynamic consolidation of both square and hexagonal fibre packings. The creep constants for the Ti–6Al–4V, determined using the single fibre test, were assigned to the coating in the finite element models. Excellent agreement between predicted and experimental results was achieved, providing verification of the single fibre test methodology for the determination of creep constants.
Translated title of the contributionDynamic densification of metal matrix-coated fibre composites: modelling and processing
Original languageEnglish
Pages (from-to)617 - 628
Number of pages12
JournalActa Materialia
Volume53 (3)
DOIs
Publication statusPublished - Feb 2005

Bibliographical note

Publisher: Elsevier

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