De Giovanni, Mario, Warnett, Jason M., Williams, Mark A., Haribabu, Nadendla and Srirangam, Prakash (2015) X-ray tomography investigation of intensive sheared Al–SiC metal matrix composites. Materials Characterization, 110 . pp. 258-263. doi:10.1016/j.matchar.2015.11.003 ISSN 1044-5803.

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Abstract

X-ray computed tomography (XCT) was used to characterise three dimensional internal structure of Al–SiC metal matrix composites. The alloy composite was prepared by casting method with the application of intensive shearing to uniformly disperse SiC particles in the matrix. Visualisation of SiC clusters as well as porosity distribution were evaluated and compared with non-shearing samples. Results showed that the average particle size as well as agglomerate size is smaller in sheared sample compared to conventional cast samples. Further, it was observed that the volume fraction of porosity was reduced by 50% compared to conventional casting, confirming that the intensive shearing helps in deagglomeration of particle clusters and decrease in porosity of Al–SiC metal matrix composites.

Item Type:	Journal Article
Divisions:	Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group)
Journal or Publication Title:	Materials Characterization
Publisher:	Elsevier
ISSN:	1044-5803
Official Date:	December 2015
Dates:	Date Event December 2015 Published 3 November 2015 Available 2 November 2015 Accepted 14 July 2015 Submitted
Volume:	110
Page Range:	pp. 258-263
DOI:	10.1016/j.matchar.2015.11.003
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	University of Warwick WMG HVM Catapult for Light Metals Research
Grant number:	HVM160043

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