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Microstructure and reaction mechanism of multi-laminated Ti-(SiCp/Al) composites subjected to annealing at 1300°c

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The multi-laminated Ti-(SiCp/Al) composite was produced by hot press and subsequent hot roll bonding of Ti and SiCp/Al foils. The microstructure evolution of the composite in reaction annealing was investigated by scanning electron microscope (SEM) equipped with energy dispersive X-ray spectrometer (EDX) and X-ray diffractometer (XRD). The results show that after the reaction annealing at 1300oC for 3h, the Ti and SiCp/Al foils were completely consumed and transformed into the TiAl composite with a microlaminated structure. The microlaminated microstructure of the composite is composed of Ti3Al/(TiAl+Ti5Si3p)/Ti5Si3/duplex-phase (TiC+Ti3AlC) layers. The reaction mechanism is elucidated by employing the reaction model.

Original languageEnglish
Title of host publicationPhysical and Numerical Simulation of Materials Processing VII
PublisherTrans Tech Publications Ltd
Pages526-530
Number of pages5
ISBN (Print)9783037857281
DOIs
StatePublished - 2013
Externally publishedYes
Event7th International Conference on Physical and Numerical Simulation of Materials Processing, ICPNS 2013 - Oulu, Finland
Duration: 16 Jun 201319 Jun 2013

Publication series

NameMaterials Science Forum
Volume762
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference7th International Conference on Physical and Numerical Simulation of Materials Processing, ICPNS 2013
Country/TerritoryFinland
CityOulu
Period16/06/1319/06/13

Keywords

  • Composites
  • Microlaminated microstructure
  • Reaction annealing
  • TiAl alloy

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