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A nanometre-scale fibre-to-matrix interface characterization of an ultrasonically consolidated metal matrix composite

Friel, R. J. LU and Harris, R. A. (2010) In Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 224(1). p.31-40
Abstract

Future 'smart' structures have the potential to revolutionize many engineering applications. One of the possible methods for creating smart structures is through the use of shape memory alloy (SMA) fibres embedded into metal matrices. Ultrasonic consolidation (UC) allows the embedding of SMAs into metal matrices while retaining the SMA's intrinsic recoverable deformation property. In this work, NiTi SMA fibres were successfully embedded into an Al 3003 (0) matrix via the UC layer manufacturing process. Initially the plastic flow of the Al matrix and the degree of fibre encapsulation were observed using optical microscopy. Then microstructural grain and sub-grain size variation of the Al 3003 (0) matrix at the fibre-matrix interface, and... (More)

Future 'smart' structures have the potential to revolutionize many engineering applications. One of the possible methods for creating smart structures is through the use of shape memory alloy (SMA) fibres embedded into metal matrices. Ultrasonic consolidation (UC) allows the embedding of SMAs into metal matrices while retaining the SMA's intrinsic recoverable deformation property. In this work, NiTi SMA fibres were successfully embedded into an Al 3003 (0) matrix via the UC layer manufacturing process. Initially the plastic flow of the Al matrix and the degree of fibre encapsulation were observed using optical microscopy. Then microstructural grain and sub-grain size variation of the Al 3003 (0) matrix at the fibre-matrix interface, and the nature of the fibre-matrix bonding mechanism, were studied via the use of focused ion beam (FIB) cross-sectioning, FIB imaging, scanning electron microscopy, and mechanical peel testing. The results show that the inclusion of the NiTi SMA fibres had a significant effect on the surrounding Al matrix microstructure during the UC process. Additionally, the fibre-matrix bonding mechanism appeared to be mechanical entrapment with the SMA surface showing signs of fatigue from the UC embedding process.

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Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
keywords
Aluminium 3003, Grain structure, Metal matrix composite, Shape memory alloy, Smart structure, Ultrasonic consolidation
in
Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
volume
224
issue
1
pages
10 pages
publisher
SAGE Publications Inc.
external identifiers
  • scopus:77951259777
ISSN
1464-4207
DOI
10.1243/14644207JMDA268
language
English
LU publication?
no
id
d259c40a-5f63-41c7-9000-b8896f5c6d65
date added to LUP
2017-01-23 09:52:22
date last changed
2018-06-17 05:19:38
@article{d259c40a-5f63-41c7-9000-b8896f5c6d65,
  abstract     = {<p>Future 'smart' structures have the potential to revolutionize many engineering applications. One of the possible methods for creating smart structures is through the use of shape memory alloy (SMA) fibres embedded into metal matrices. Ultrasonic consolidation (UC) allows the embedding of SMAs into metal matrices while retaining the SMA's intrinsic recoverable deformation property. In this work, NiTi SMA fibres were successfully embedded into an Al 3003 (0) matrix via the UC layer manufacturing process. Initially the plastic flow of the Al matrix and the degree of fibre encapsulation were observed using optical microscopy. Then microstructural grain and sub-grain size variation of the Al 3003 (0) matrix at the fibre-matrix interface, and the nature of the fibre-matrix bonding mechanism, were studied via the use of focused ion beam (FIB) cross-sectioning, FIB imaging, scanning electron microscopy, and mechanical peel testing. The results show that the inclusion of the NiTi SMA fibres had a significant effect on the surrounding Al matrix microstructure during the UC process. Additionally, the fibre-matrix bonding mechanism appeared to be mechanical entrapment with the SMA surface showing signs of fatigue from the UC embedding process.</p>},
  author       = {Friel, R. J. and Harris, R. A.},
  issn         = {1464-4207},
  keyword      = {Aluminium 3003,Grain structure,Metal matrix composite,Shape memory alloy,Smart structure,Ultrasonic consolidation},
  language     = {eng},
  month        = {01},
  number       = {1},
  pages        = {31--40},
  publisher    = {SAGE Publications Inc.},
  series       = {Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications},
  title        = {A nanometre-scale fibre-to-matrix interface characterization of an ultrasonically consolidated metal matrix composite},
  url          = {http://dx.doi.org/10.1243/14644207JMDA268},
  volume       = {224},
  year         = {2010},
}