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Using finite element modelling to examine the temperature distribution in quasi-constrained high-pressure torsion

Using finite element modelling to examine the temperature distribution in quasi-constrained high-pressure torsion
Using finite element modelling to examine the temperature distribution in quasi-constrained high-pressure torsion
Processing by quasi-constrainedhigh-pressuretorsion (HPT) is important for achieving substantial grain refinement in bulk solids, but very little information is available at present on the rise in temperature that occurs in the HPT specimens during the processing operation. This problem was addressed by using finiteelementmodeling with an analytical component to evaluate the thermal characteristics in quasi-constrained HPT. The analysis incorporates the effects of various parameters, including the material strength, the rotation rate, the applied pressure and the volume of the anvils. The calculations show that the temperature rise varies directly with the material strength and the rotation rate, but depends only slightly on the applied pressure. Using this analysis, a normalized master curve is constructed that may be used to predict the rise in temperature during HPT processing. It is demonstrated that the predictions from this curve are in good agreement with experimental data for three different materials
1359-6454
3190-3198
Figueiredo, Roberto B.
2e0060b8-6368-4d87-825a-c3cb90e92145
Pereira, Pedro Henrique R.
9ee129fd-0e06-482d-990c-971aaf83b1d0
Aguilar, Maria Teresa P.
a3ec56c8-460d-4932-abde-b4f281fa5c4c
Cetlin, Paulo R.
6fe5efb8-7976-4d56-8aae-08cbf76b9628
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Figueiredo, Roberto B.
2e0060b8-6368-4d87-825a-c3cb90e92145
Pereira, Pedro Henrique R.
9ee129fd-0e06-482d-990c-971aaf83b1d0
Aguilar, Maria Teresa P.
a3ec56c8-460d-4932-abde-b4f281fa5c4c
Cetlin, Paulo R.
6fe5efb8-7976-4d56-8aae-08cbf76b9628
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Figueiredo, Roberto B., Pereira, Pedro Henrique R., Aguilar, Maria Teresa P., Cetlin, Paulo R. and Langdon, Terence G. (2012) Using finite element modelling to examine the temperature distribution in quasi-constrained high-pressure torsion. Acta Materialia, 60 (6-7), 3190-3198. (doi:10.1016/j.actamat.2012.02.027).

Record type: Article

Abstract

Processing by quasi-constrainedhigh-pressuretorsion (HPT) is important for achieving substantial grain refinement in bulk solids, but very little information is available at present on the rise in temperature that occurs in the HPT specimens during the processing operation. This problem was addressed by using finiteelementmodeling with an analytical component to evaluate the thermal characteristics in quasi-constrained HPT. The analysis incorporates the effects of various parameters, including the material strength, the rotation rate, the applied pressure and the volume of the anvils. The calculations show that the temperature rise varies directly with the material strength and the rotation rate, but depends only slightly on the applied pressure. Using this analysis, a normalized master curve is constructed that may be used to predict the rise in temperature during HPT processing. It is demonstrated that the predictions from this curve are in good agreement with experimental data for three different materials

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More information

e-pub ahead of print date: 10 March 2012
Published date: April 2012
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 340455
URI: http://eprints.soton.ac.uk/id/eprint/340455
ISSN: 1359-6454
PURE UUID: 511e6e07-015f-4700-8bba-ba8acc8b1730
ORCID for Terence G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 22 Jun 2012 08:42
Last modified: 15 Mar 2024 03:13

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Contributors

Author: Roberto B. Figueiredo
Author: Pedro Henrique R. Pereira
Author: Maria Teresa P. Aguilar
Author: Paulo R. Cetlin

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