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HomeMaterials Science ForumMaterials Science Forum Vol. 659Unique Features of Ultrafine-Grained...

Unique Features of Ultrafine-Grained Microstructures in Materials Having Low Stacking Fault Energy

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Abstract:

The evolution of the microstructure during processing by equal-channel angular pressing (ECAP) in silver having extremely low stacking fault energy was studied up to 16 passes. It was shown that at high strains the contribution of twinning to deformation increased at the expense of dislocation-controlled processes. It was also found that during storage at room temperature (i.e. at the temperature of ECAP) there was a self-annealing of the severely deformed microstructure after 1 month and its degree was revealed to have a strong dependence on the number of passes.

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Materials Science, Testing and Informatics V

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Periodical:

Materials Science Forum (Volume 659)

Pages:

171-176

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.659.171

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Online since:

September 2010

Authors:

Jenő Gubicza, Quang Chinh Nguyen, János L. Lábár, Zoltán Hegedűs, Terence G. Langdon

Keywords:

Equal-Channel Angular Pressing (ECAP), Severe Plastic Deformation (SPD), Stacking Fault Energy (SFE), Ultrafine Grained Microstructure

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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[1] R.Z. Valiev, R.K. Islamgaliev and I.V. Alexandrov: Prog. Mater. Sci. Vol. 45 (2000), p.103.

[2] R.Z. Valiev and T.G. Langdon: Prog. Mater. Sci. Vol. 51 (2006), p.881.

[3] G. Wang, S.D. Wu, L. Zuo, C. Esling, Z.G. Wang and G.Y. Li: Mater. Sci. Eng. A Vol. 346 (2003), p.83.

[4] O.V. Mishin and A. Godfrey: Metall. Mater. Trans A Vol. 39 (2008), p.2923.

[5] J.P. Hirth and J. Lothe: Theory of Dislocations, Wiley, New York (1982).

[6] J. Gubicza, N.Q. Chinh, J.L. Lábár, Z Hegedüs, C. Xu and T.G. Langdon: Scripta Mater. Vol. 58 (2008), p.775.

[7] L. Balogh, T. Ungár, Y. Zhao, Y.T. Zhu, Z. Horita, C. Xu and T.G. Langdon: Acta Mater. Vol. 56 (2008), p.809.

[8] Y.H. Zhao, Z. Horita, T.G. Langdon and Y.T. Zhu: Mater. Sci. Eng. A Vol. 474 (2008), p.342.

[9] Y. Iwahashi, J. Wang, Z. Horita, M. Nemoto and T.G. Langdon: Scripta Mater. Vol. 35 (1996), p.143.

[10] L. Balogh, G. Ribárik and T. Ungár: J. Appl. Phys. Vol. 100 (2006) 023512.

[11] P. Müllner and C. Solenthaler: Mater. Sci. Eng. A Vol. 230 (1997), p.107.

[12] J.B. Cohen and J. Weertman: Acta Metall. Vol. 11 (1963), p.996.

[13] S. Mahajan and G.Y. Chin: Acta Metall. Vol. 21 (1973), p.1353.

[14] J. Gubicza, N.Q. Chinh, J.L. Lábár, Z. Hegedűs and T.G. Langdon: Mater. Sci. Eng. A. (2009), in press.

[15] A.S. Argon and W.C. Moffatt: Acta Metall. Vol. 29 (1981), p.293.

[16] P.B. Escaig: J. de Physique Vol. 29 (1968), p.225.

[17] H. Paul, J.H. Driver, C. Maurice and A. Piatkowski: Acta Mater. Vol. 55 (2007), p.575.