Using finite element modelling to examine the flow process and temperature evolution in HPT under different constraining conditions
Using finite element modelling to examine the flow process and temperature evolution in HPT under different constraining conditions
High-pressure torsion (HPT) is a metal-working technique used to impose severe plastic deformation into disc-shaped samples under high hydrostatic pressures. Different HPT facilities have been developed and they may be divided into three distinct categories depending upon the configuration of the anvils and the restriction imposed on the lateral flow of the samples. In the present paper, finite element simulations were performed to compare the flow process, temperature, strain and hydrostatic stress distributions under unconstrained, quasi-constrained and constrained conditions. It is shown there are distinct strain distributions in the samples depending on the facility configurations and a similar trend in the temperature rise of the HPT workpieces
12041
Pereira, P.H.R.
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Figueiredo, R.B.
1b4f5fa6-b201-4435-8f5e-13833fc8d504
Cetlin, P.R.
480122c9-acc7-476d-a452-1a32b129fbe3
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
July 2014
Pereira, P.H.R.
9ee129fd-0e06-482d-990c-971aaf83b1d0
Figueiredo, R.B.
1b4f5fa6-b201-4435-8f5e-13833fc8d504
Cetlin, P.R.
480122c9-acc7-476d-a452-1a32b129fbe3
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Pereira, P.H.R., Figueiredo, R.B., Cetlin, P.R. and Langdon, T.G.
(2014)
Using finite element modelling to examine the flow process and temperature evolution in HPT under different constraining conditions.
IOP Conference Series: Materials Science and Engineering, 63, .
(doi:10.1088/1757-899X/63/1/012041).
Abstract
High-pressure torsion (HPT) is a metal-working technique used to impose severe plastic deformation into disc-shaped samples under high hydrostatic pressures. Different HPT facilities have been developed and they may be divided into three distinct categories depending upon the configuration of the anvils and the restriction imposed on the lateral flow of the samples. In the present paper, finite element simulations were performed to compare the flow process, temperature, strain and hydrostatic stress distributions under unconstrained, quasi-constrained and constrained conditions. It is shown there are distinct strain distributions in the samples depending on the facility configurations and a similar trend in the temperature rise of the HPT workpieces
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1757-899X_63_1_012041.pdf
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Published date: July 2014
Organisations:
Engineering Mats & Surface Engineerg Gp
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Local EPrints ID: 368096
URI: http://eprints.soton.ac.uk/id/eprint/368096
ISSN: 1757-899X
PURE UUID: c97a3ad1-3720-4f1c-99a8-0f4a5f234b59
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Date deposited: 12 Sep 2014 10:09
Last modified: 15 Mar 2024 03:13
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Author:
P.H.R. Pereira
Author:
R.B. Figueiredo
Author:
P.R. Cetlin
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