On Thermomechanical Processing of High Ductility SiCp/Zn 22wt.%Al Metal Matrix Composites

Abstract:

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SiCp/Zn-22 wt% Al metal matrix composites of different particulate sizes have been prepared and tensile tested at 250°C at various strain rates. Scheduled thermomechanical treatment of structural refinement was employed to enhance the ductility of the composites. Substantial ductility of over 500% elongation bas been achieved within the strain rates investigated. The highest elongations are generally obtained by the samples reinforced with large particulates. Microstructural examination of the tested samples shows significant material cavitation and particulate separation in the material after tensile deformation. It was found that the particles had a de-strengthening effect.

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Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

979-984

DOI:

10.4028/www.scientific.net/MSF.475-479.979

Citation:

P. Zhu et al., "On Thermomechanical Processing of High Ductility SiCp/Zn 22wt.%Al Metal Matrix Composites", Materials Science Forum, Vols. 475-479, pp. 979-984, 2005

Online since:

January 2005

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$35.00

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