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Friction Stir Welding of Fibre-Reinforced Titanium Composites for Aerospace Structures

  • Jonathan MartinEmail author
  • Craig Blacker
  • Kathryn Beamish
  • Advenit Makaya
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Composite materials consisting of a titanium alloy reinforced with continuous silicon carbide fibres, called TiSiC, are currently being investigated to enhance performance for applications where titanium alloys are used. Conventional fusion welding techniques create difficulties due to the detrimental impact of high temperature on the fibre/metal interfaces. This study describes the application of stationary shoulder friction stir welding (SS-FSW) technique to join TISIC components to monolithic titanium. Microscopic investigations had shown flaw-free welding, until the SSFSW tool started to mechanically interact with the SiC fibres. When subjected to tensile testing, the weld properties were superior to the parent monolithic titanium. The comprehensive investigation of fracture toughness, residual stress and fatigue properties of the weld components are presented and potential advantages discussed.

Keywords

Stationary shoulder Titanium TiSiC 

Notes

Acknowledgements

This activity is supported by ESA’s TRP programme under contract number 4,000,116,110/15/NL/BJ/gp.

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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Jonathan Martin
    • 1
    Email author
  • Craig Blacker
    • 2
  • Kathryn Beamish
    • 3
  • Advenit Makaya
    • 4
  1. 1.TWI Technology Centre (Yorkshire)Catcliffe, RotherhamUK
  2. 2.TISICs LtdFarnboroughUK
  3. 3.TWI LtdGranta Park, Great Abington, CambridgeUK
  4. 4.European Space AgencyNoordwijkNetherlands

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