Microstructural evolution in the processing of bulk samples using high-pressure torsion
Horita, Z. and Langdon, T.G. (2007) Microstructural evolution in the processing of bulk samples using high-pressure torsion. Materials Science Forum, 539-543, 80-85.
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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.
|Keywords:||aluminium alloy, grain refinement, high pressure torsion (HPT), severe plastic deformation, ultra-fine grains|
|Subjects:||T Technology > TJ Mechanical engineering and machinery
Q Science > QD Chemistry
T Technology > TA Engineering (General). Civil engineering (General)
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences > Engineering Materials & Surface Engineering
|Date Deposited:||24 Jan 2008|
|Last Modified:||01 Jun 2011 02:28|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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