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

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Published copy (DOI)


  • H Peng
  • F P E Dunne
  • P S Grant
  • B Cantor


Publication details

JournalActa Materialia
DatePublished - Feb 2005
Issue number3
Number of pages12
Pages (from-to)617-628
Original languageEnglish


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, to-ether 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 900 degreesC to be 1.23 x 10(-5) and 1.3, respectively. Consolidation experiments have been carried out on multiply 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. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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