Analysis of Plastic Deformation and Sample Geometry during the Compression Stage in High-Pressure Torsion

Pedro Henrique R. Pereira; Túlio H.P. Costa; Roberto B. Figueiredo; Paulo Roberto Cetlin; Terence Langdon

doi:10.4028/www.scientific.net/AMR.922.592

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 922Analysis of Plastic Deformation and Sample...

Analysis of Plastic Deformation and Sample Geometry during the Compression Stage in High-Pressure Torsion

Abstract:

The production of ultrafine-grained metals through severe plastic deformation (SPD) has attracted significant interest in the scientific community due to the improvement in mechanical properties. Among SPD methods, high pressure torsion (HPT) processing is most effective in producing exceptionally small grains in disc-shaped samples subjected to high hydrostatic pressures and concurrent torsional straining. The present paper analyzes the elastic distortions and plastic flow during the application of compressive pressure in samples during HPT. Simulations through finite element method reveal a distortion of the initial shape of the sample and a gradient in sample thickness between the center and the edge due to elastic distortions. Also, it is shown that significant plastic deformation takes place in this stage and this is before any torsional deformation is imposed on the sample.

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Periodical:

Advanced Materials Research (Volume 922)

Pages:

592-597

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.922.592

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Online since:

May 2014

Authors:

Pedro Henrique R. Pereira*, Túlio H.P. Costa, Roberto B. Figueiredo, Paulo Roberto Cetlin, Terence Langdon

Keywords:

Finite Element Modeling (FEM), High-Pressure Torsion, Quasi-Constrained Conditions, Severe Plastic Deformation

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References

[1] R.Z. Valiev, R.K. Islamgaliev, I.V. Alexandrov, Bulk nanostructured materials from severe plastic deformation, Prog. Mater. Sci. 45 (2000) 103–189.

DOI: 10.1016/s0079-6425(99)00007-9

Google Scholar

[2] Y. Huang, T.G. Langdon, Advances in ultrafine-grained materials, Mater. Today 16 (2013) 85-93.

Google Scholar

[3] A.P. Zhilyaev, T.G. Langdon, Using high-pressure torsion for metal processing: fundamentals and applications, Prog. Mater. Sci. 53 (2008) 893–979.

DOI: 10.1016/j.pmatsci.2008.03.002

Google Scholar

[4] R.B. Figueiredo, P.R. Cetlin, T.G. Langdon, Using finite element modeling to examine the flow processes in quasi-constrained high-pressure torsion, Mater. Sci. Eng. A528 (2011) 8198-8204.

DOI: 10.1016/j.msea.2011.07.040

Google Scholar

[5] R.B. Figueiredo, P.H.R. Pereira, M.T.P. Aguilar, P.R. Cetlin, T.G. Langdon, Using finite element modeling to examine the temperature distribution in quasi-constrained high-pressure torsion, Acta Mater. 60 (2012) 3190–3198.

DOI: 10.1016/j.actamat.2012.02.027

Google Scholar

[6] R.B. Figueiredo, M.T.P. Aguilar, P.R. Cetlin, T.G. Langdon, Analysis of platic flow during high-pressure torsion, J. Mater. Sci. 47 (2012) 7807-7814.

DOI: 10.1007/s10853-012-6506-z

Google Scholar

[7] Y. Song, E.Y. Yoon, D.J. Lee, J.H. Lee, H.S. Kim, Mechanical properties of copper after compression stage of high-pressure torsion, Mater. Sci. Eng. A528 (2011) 4840-4844.

DOI: 10.1016/j.msea.2011.02.020

Google Scholar

[8] R.B. Figueiredo, G.C.V. de Faria, P.R. Cetlin, T.G. Langdon, Three-dimensional analysis of plastic flow during high-pressure torsion, J. Mater. Sci. 48 (2013) 4524-4532.

DOI: 10.1007/s10853-012-6979-9

Google Scholar

[9] D.J. Lee, E.Y. Yoon, L.J. Park, H.S. Kim, The dead metal zone in high-pressure torsion, Scripta Mater. 67 (2012) 384-387.

DOI: 10.1016/j.scriptamat.2012.05.024

Google Scholar

[10] H.J. Jeong, E.Y. Yoon, D.J. Lee, N.J. Kim, S. Lee, H.S. Kim, Nanoindentation analysis for local properties of ultrafine grained copper processed by high pressure torsion, J. Mater. Sci. 47 (2012) 7828-7834.

DOI: 10.1007/s10853-012-6540-x

Google Scholar

[11] D.J. Lee, E.Y. Yoon, S.H. Lee, S.Y. Kang, H.S. Kim, Finite element analysis for compression behavior of high pressure torsion processing, Rev. Adv. Mater. Sci. 31 (2012) 25-30.

Google Scholar

[12] K. Edalati, R. Miresmaeili, Z. Horita, H. Kanayama, R. Pippan, Significance of temperature increase in processing by high-pressure torsion, Mater. Sci. Eng. A528 (2011) 7301-7305.

DOI: 10.1016/j.msea.2011.06.031

Google Scholar

[13] R.B. Figueiredo, Z. Száraz, Z. Trojanová, P. Lukáč, T.G. Langdon, Significance of twinning in the anisotropic behavior of a magnesium alloy processed by equal-channel angular pressing, Scripta Mater. 63 (2011) 504-507.

DOI: 10.1016/j.scriptamat.2010.05.016

Google Scholar