High temperature deformation behavior of Al 2124-SiCpcomposite

B. Q. Han; Kang Cheung Chan; Tai Man Yue; W. S. Lau

doi:10.1016/S0924-0136(96)02653-2

High temperature deformation behavior of Al 2124-SiC_pcomposite

B. Q. Han, Kang Cheung Chan, Tai Man Yue, W. S. Lau

Research output: Journal article publication › Journal article › Academic research › peer-review

22 Citations (Scopus)

Abstract

The high temperature deformation of 2124/SiCp(17 vol.%) Composite material was investigated over the temperature range from 698 K to 823 K. It was shown that the 2124/SiCpcomposite did not behave superplastically at strain rates of from 10-4to 10-1s-1. The strain rate sensitivity was found to be about 0.17, which was apparently below that (0.5) of a superplastic material. The activation energy for high temperature deformation was much greater than that of superplastic aluminum alloys. Numerous cavities on the fracture surfaces of the composite were observed by SEM. The high-temperature deformation of the composite was compared with superplastic behavior of 8090/SiCpcomposite, and the reasons for the 2124/SiCpcomposite not showing superplastic properties were explained according to superplastic deformation mechanism and the composite itself.

Original language	English
Pages (from-to)	395-398
Number of pages	4
Journal	Journal of Materials Processing Technology
Volume	63
Issue number	1-3
DOIs	https://doi.org/10.1016/S0924-0136(96)02653-2
Publication status	Published - 1 Jan 1997

Keywords

Aluminum matrix composite
High-temperature deformation
Superplastic deformation

ASJC Scopus subject areas

Ceramics and Composites
Computer Science Applications
Metals and Alloys
Industrial and Manufacturing Engineering

More information

10.1016/S0924-0136(96)02653-2

Cite this

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title = "High temperature deformation behavior of Al 2124-SiCpcomposite",

abstract = "The high temperature deformation of 2124/SiCp(17 vol.%) Composite material was investigated over the temperature range from 698 K to 823 K. It was shown that the 2124/SiCpcomposite did not behave superplastically at strain rates of from 10-4to 10-1s-1. The strain rate sensitivity was found to be about 0.17, which was apparently below that (0.5) of a superplastic material. The activation energy for high temperature deformation was much greater than that of superplastic aluminum alloys. Numerous cavities on the fracture surfaces of the composite were observed by SEM. The high-temperature deformation of the composite was compared with superplastic behavior of 8090/SiCpcomposite, and the reasons for the 2124/SiCpcomposite not showing superplastic properties were explained according to superplastic deformation mechanism and the composite itself.",

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AU - Han, B. Q.

AU - Chan, Kang Cheung

AU - Yue, Tai Man

AU - Lau, W. S.

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N2 - The high temperature deformation of 2124/SiCp(17 vol.%) Composite material was investigated over the temperature range from 698 K to 823 K. It was shown that the 2124/SiCpcomposite did not behave superplastically at strain rates of from 10-4to 10-1s-1. The strain rate sensitivity was found to be about 0.17, which was apparently below that (0.5) of a superplastic material. The activation energy for high temperature deformation was much greater than that of superplastic aluminum alloys. Numerous cavities on the fracture surfaces of the composite were observed by SEM. The high-temperature deformation of the composite was compared with superplastic behavior of 8090/SiCpcomposite, and the reasons for the 2124/SiCpcomposite not showing superplastic properties were explained according to superplastic deformation mechanism and the composite itself.

AB - The high temperature deformation of 2124/SiCp(17 vol.%) Composite material was investigated over the temperature range from 698 K to 823 K. It was shown that the 2124/SiCpcomposite did not behave superplastically at strain rates of from 10-4to 10-1s-1. The strain rate sensitivity was found to be about 0.17, which was apparently below that (0.5) of a superplastic material. The activation energy for high temperature deformation was much greater than that of superplastic aluminum alloys. Numerous cavities on the fracture surfaces of the composite were observed by SEM. The high-temperature deformation of the composite was compared with superplastic behavior of 8090/SiCpcomposite, and the reasons for the 2124/SiCpcomposite not showing superplastic properties were explained according to superplastic deformation mechanism and the composite itself.

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