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Mechanical properties and microstructural behavior of a metal matrix composite processed by severe plastic deformation techniques

Mechanical properties and microstructural behavior of a metal matrix composite processed by severe plastic deformation techniques
Mechanical properties and microstructural behavior of a metal matrix composite processed by severe plastic deformation techniques
A severe plastic deformation (SPD) technique was applied to an Al-7075 alloy reinforced with 10 vol.% Al2O3. This processing method of high-pressure torsion (HPT) was performed at room temperature under a pressure of 6.0 GPa through a total number of up to 20 turns. The metal matrix composite (MMC) showed a significant grain refinement from an initial average grain size of ?8 ?m to ?300 nm after processing by HPT through 20 turns which led to an increase in the average values of Vickers microhardness at room temperature.
hardnes, microstructure, composite
1-6
Sabbaghianrad, S.
a061a940-ba10-4c18-945c-142464addb36
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Sabbaghianrad, S.
a061a940-ba10-4c18-945c-142464addb36
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Sabbaghianrad, S. and Langdon, T.G. (2016) Mechanical properties and microstructural behavior of a metal matrix composite processed by severe plastic deformation techniques. MRS Advances, 1-6. (doi:10.1557/adv.2015.7).

Record type: Article

Abstract

A severe plastic deformation (SPD) technique was applied to an Al-7075 alloy reinforced with 10 vol.% Al2O3. This processing method of high-pressure torsion (HPT) was performed at room temperature under a pressure of 6.0 GPa through a total number of up to 20 turns. The metal matrix composite (MMC) showed a significant grain refinement from an initial average grain size of ?8 ?m to ?300 nm after processing by HPT through 20 turns which led to an increase in the average values of Vickers microhardness at room temperature.

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More information

e-pub ahead of print date: 10 December 2015
Published date: January 2016
Keywords: hardnes, microstructure, composite
Organisations: Engineering Mats & Surface Engineerg Gp, Engineering Science Unit, Faculty of Engineering and the Environment

Identifiers

Local EPrints ID: 386310
URI: http://eprints.soton.ac.uk/id/eprint/386310
PURE UUID: 3dd16673-a9b2-4939-b194-4a55fc7782bd
ORCID for T.G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 29 Jan 2016 16:43
Last modified: 10 Dec 2019 01:47

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