Chapter 1 - High-pressure torsion and equal-channel angular pressing
Chapter 1 - High-pressure torsion and equal-channel angular pressing
In this chapter, the main peculiarities of ultrafine-grained (UFG) structure formation in commercially pure Ti is examined when processing by high-pressure torsion (HPT) or equal-channel angular pressing (ECAP). High-pressure torsion is used to produce Ti with extremely small grain sizes (generally < 100 nm). The ECAP technique was developed in the 1990s by R.Z. Valiev and coauthors and successfully used to produce UFG structures in bulk billets of pure Ti. Recently, this technique was further developed and a number of modifications of the technique have been proposed, including continuous ECAP or ECAP-Conform which enables the production of long-length rods (up to 1 m).
Titanium, Severe Plastic Deform, Nanostructuring, ultrafine grained structure
3-19
Semenova, Irina P.
1657aa64-fd27-41ad-8f11-de392bbf3eaf
Valiev, Ruslan Z.
c7a74063-2158-4e93-a9d2-e5aa00d8d588
Langdon, Terence
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2019
Semenova, Irina P.
1657aa64-fd27-41ad-8f11-de392bbf3eaf
Valiev, Ruslan Z.
c7a74063-2158-4e93-a9d2-e5aa00d8d588
Langdon, Terence
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Semenova, Irina P., Valiev, Ruslan Z. and Langdon, Terence
(2019)
Chapter 1 - High-pressure torsion and equal-channel angular pressing.
In,
Nanocrystalline Titanium.
Elsevier, .
(doi:10.1016/B978-0-12-814599-9.00001-8).
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Book Section
Abstract
In this chapter, the main peculiarities of ultrafine-grained (UFG) structure formation in commercially pure Ti is examined when processing by high-pressure torsion (HPT) or equal-channel angular pressing (ECAP). High-pressure torsion is used to produce Ti with extremely small grain sizes (generally < 100 nm). The ECAP technique was developed in the 1990s by R.Z. Valiev and coauthors and successfully used to produce UFG structures in bulk billets of pure Ti. Recently, this technique was further developed and a number of modifications of the technique have been proposed, including continuous ECAP or ECAP-Conform which enables the production of long-length rods (up to 1 m).
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Semenova-Ti
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Accepted/In Press date: 2 August 2018
e-pub ahead of print date: 28 September 2018
Published date: 2019
Keywords:
Titanium, Severe Plastic Deform, Nanostructuring, ultrafine grained structure
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Local EPrints ID: 425587
URI: http://eprints.soton.ac.uk/id/eprint/425587
PURE UUID: 3ad825d9-4d50-44bd-9cf0-891e7819dc19
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Date deposited: 25 Oct 2018 16:30
Last modified: 16 Mar 2024 03:28
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Author:
Irina P. Semenova
Author:
Ruslan Z. Valiev
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