The cavitation behavior of a high-strain-rate superplastic Al6061/20SiC{sub w} composite under uniaxial and equibiaxial tension
- Hong Kong Polytechnic Univ., Kowloon (Hong Kong). Dept. of Manufacturing Engineering
It is well established that most superplastic materials cavitate during deformation, and that the presence of cavitation may lead either to premature failure or to degradation of the mechanical properties of post-formed components. However, research works on the cavitation behavior of high-strain-rate superplastic MMCs are at present limited to PM64/SiC{sub P}, Al6061/20Si{sub 3}N{sub 4P(W)}, IN9021/15SiC{sub P} and Al2124/20Si{sub 3}N{sub 4W}. Furthermore, the cavitation behavior of MMCs deformed under complex stress states which are commonly applied in industrial processes has less been investigated. The purpose of this paper is hence to provide a first description of the cavitation behavior of a high-strain-rate superplastic aluminum matrix composite (Al6061/20SiC{sub w}) under uniaxial and equibiaxial tension, and the findings will be compared with that of a typical superplastic alloy (Al7475).
- OSTI ID:
- 619515
- Journal Information:
- Scripta Materialia, Vol. 38, Issue 11; Other Information: PBD: 5 May 1998
- Country of Publication:
- United States
- Language:
- English
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