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Microstructure evolution of Al-7wt%Si-2wt%Fe alloy processed by high-pressure torsion

Microstructure evolution of Al-7wt%Si-2wt%Fe alloy processed by high-pressure torsion
Microstructure evolution of Al-7wt%Si-2wt%Fe alloy processed by high-pressure torsion

The microstructure evolution of an aluminum silicon-based alloy after severe plastic deformation processing was examined. An aluminum silicon-based alloy; Al-7wt%Si-2wt%Fe, was processed by the severe plastic deformation technique called high-pressure torsion at room temperature under a high pressure of 6.0 GPa and rotational speed of 1.0 rpm with numbers of revolution up to 5 turns. Microstructure evolution, especially intermetallic phase, was observed using an optical microscope and a scanning electron microscope (SEM). The effects of high-pressure torsion on the Fe intermetallic compounds in Al-Si alloy were investigated. It was found that the intermetallic particles decreased in size with increasing imposed strains.

1-4
Wongsa-Ngam, Jittraporn
3a196159-d8e5-4658-a47b-a6f6c5a7dcc7
Phongphisutthinan, Chakkrist
d9bf4b9d-2198-45c0-a9f2-b0134d35dcbe
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Wongsa-Ngam, Jittraporn
3a196159-d8e5-4658-a47b-a6f6c5a7dcc7
Phongphisutthinan, Chakkrist
d9bf4b9d-2198-45c0-a9f2-b0134d35dcbe
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Wongsa-Ngam, Jittraporn, Phongphisutthinan, Chakkrist and Langdon, Terence G. (2018) Microstructure evolution of Al-7wt%Si-2wt%Fe alloy processed by high-pressure torsion. MATEC Web of Conferences, 192, 1-4, [02068]. (doi:10.1051/matecconf/201819202068).

Record type: Article

Abstract

The microstructure evolution of an aluminum silicon-based alloy after severe plastic deformation processing was examined. An aluminum silicon-based alloy; Al-7wt%Si-2wt%Fe, was processed by the severe plastic deformation technique called high-pressure torsion at room temperature under a high pressure of 6.0 GPa and rotational speed of 1.0 rpm with numbers of revolution up to 5 turns. Microstructure evolution, especially intermetallic phase, was observed using an optical microscope and a scanning electron microscope (SEM). The effects of high-pressure torsion on the Fe intermetallic compounds in Al-Si alloy were investigated. It was found that the intermetallic particles decreased in size with increasing imposed strains.

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Accepted/In Press date: 1 April 2016
e-pub ahead of print date: 14 August 2018
Published date: 2018

Identifiers

Local EPrints ID: 423610
URI: http://eprints.soton.ac.uk/id/eprint/423610
PURE UUID: b5430cc5-0186-48c6-94ea-dac653491a9b
ORCID for Terence G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

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Date deposited: 27 Sep 2018 16:30
Last modified: 27 Jan 2020 13:39

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Contributors

Author: Jittraporn Wongsa-Ngam
Author: Chakkrist Phongphisutthinan

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