Investigation of the clustering behaviour of titanium diboride particles in aluminium

I.G. Watson, M.F. Forster, P.D. Lee, R.J. Dashwood, R.W. Hamilton, A. Chirazi

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

The clustering of reinforcement particles in cast metal matrix composite (MMC) material has a number of deleterious effects on its mechanical properties and castability. In order to better understand this phenomenon, the clustering behaviour of TiB2 particles in molten commercial purity aluminium was investigated. A novel method of sampling the melt was developed in order to investigate the clustering behaviour as a function of holding time at 700 °C. The initially clustered distribution of TiB2 became increasingly dispersed with increased holding time. The maximum observed cluster size decreased from 50 to 10 μm after a holding period of 73 h. X-ray microtomography (XMT) and SEM micrograph analyses were carried out to quantify the rate of dispersion of the clusters. XMT was shown to be a powerful tool for visualizing and quantifying 3-dimensional features within the MMC microstructure.
Original languageEnglish
Pages (from-to)1177-1187
Number of pages11
JournalComposites Part A: Applied Science and Manufacturing
Volume36
Issue number9
Early online date31 Mar 2005
DOIs
Publication statusPublished - Sep 2005
Externally publishedYes

Fingerprint

Aluminum
Titanium
Metals
X rays
Composite materials
Molten materials
Reinforcement
Sampling
Mechanical properties
Microstructure
Scanning electron microscopy
titanium boride

Keywords

  • Metal-matrix composites CMMCs
  • Particle-reinforcement
  • Microstructure
  • X-ray Microtomography (XMT)

Cite this

Investigation of the clustering behaviour of titanium diboride particles in aluminium. / Watson, I.G.; Forster, M.F.; Lee, P.D.; Dashwood, R.J.; Hamilton, R.W.; Chirazi, A.

In: Composites Part A: Applied Science and Manufacturing, Vol. 36, No. 9, 09.2005, p. 1177-1187.

Research output: Contribution to journalArticle

Watson, I.G. ; Forster, M.F. ; Lee, P.D. ; Dashwood, R.J. ; Hamilton, R.W. ; Chirazi, A. / Investigation of the clustering behaviour of titanium diboride particles in aluminium. In: Composites Part A: Applied Science and Manufacturing. 2005 ; Vol. 36, No. 9. pp. 1177-1187.
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