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HomeMaterials Science ForumMaterials Science Forum Vols. 539-543Microstructural Evolution in the Processing of...

Microstructural Evolution in the Processing of Bulk Samples Using High-Pressure Torsion

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Abstract:

Although high-pressure torsion (HPT) is now a well-established technique for imposing severe plastic deformation on metallic materials, the technique is generally restricted to use with thin disk samples. This paper describes experiments which were conducted to evaluate the potential for making use of HPT with bulk samples in the form of small cylinders. The experiments were performed using an Al-Mg-Sc alloy and the samples were strained under a pressure of 1 GPa at room temperature. The results demonstrate excellent microstructural refinement in the vicinity of the central zone around the periphery of the cylinders.

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THERMEC 2006

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Periodical:

Materials Science Forum (Volumes 539-543)

Pages:

80-85

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.539-543.80

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Online since:

March 2007

Authors:

Z. Horita, Terence G. Langdon

Keywords:

Aluminium Alloy, Grain Refinement, High Pressure Torsion (HPT), Severe Plastic Deformation (SPD), Ultrafine Grained

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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