The Influence of Hydrostatic Extrusion on the Microstructure of 6082 Aluminium Alloy

Abstract:

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Hydrostatic extrusion can be viewed as one of the methods of Severe Plastic Deformation, SPD, for the fabrication of ultra-fine grained alloys which causes a significant increase in the mechanical properties such as tensile strength and hardness. In the present study the microstructure of 6082 aluminium alloy after hydrostatic extrusion was investigated. Hydroextrusion was performed in three steps with accumulated true strains of 1.34, 2.73 and 3.74 respectively. Microstructural observations were carried out using SEM, TEM and light microscopy. Grain and inclusion sizes, shapes and distribution were investigated in the HE processed samples. The study has shown that the hydrostatic extrusion process results in a profound refinement of both the grain size and the inclusions in 6082 aluminium alloy.

Info:

Periodical:

Solid State Phenomena (Volume 114)

Edited by:

Witold Lojkowski and John R. Blizzard

Pages:

145-150

DOI:

10.4028/www.scientific.net/SSP.114.145

Citation:

P. Widlicki et al., "The Influence of Hydrostatic Extrusion on the Microstructure of 6082 Aluminium Alloy", Solid State Phenomena, Vol. 114, pp. 145-150, 2006

Online since:

July 2006

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$35.00

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