Enhancing Ductility of ECAP Processed Metals

Abstract:

Mechanical properties such as hardness, mechanical strength or fatigue resistance are by far the most successful material behaviour improved by the ECAP processed. However, the lack of ductility is the most critical negative effect. Combination of multimodal grain size is one of the most promising solutions to improve the strength/ductility balance. Different characterisation techniques are used here to analyse the properties of ECAP Cu thermal treatments and their mechanical properties influence were also investigated.

• Periodical: Materials Science Forum (Volumes 654-656)
• Pages: 1219-1222
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.654-656.1219
• Online since: June 2010
• Authors: Nuria Llorca-Isern, Thierry Grosdidier, Jose María Cabrera
• Keywords: Cu, Ductility, Equal-Channel Angular Pressing (ECAP), Severe Plastic Deformation (SPD)

References

[1] Y.M. Wang and E. Ma: Acta Mater. Vol. 52 (2004), p.1699.

[2] E. Ma: Scripta Mater. Vol. 49 (2003), p.663.

[3] Y.M. Wang, M.W. Chen, F.H. Zhou and E. Ma: Nature Vol. 419 (2002), p.912.

[4] X. Zhang, H. Wang, R.O. Scattergood, J. Narayan, C.C. Koch, A.V. Sergueeva and A.K. Mukherjee: Acta Mater. Vol. 50 (2002), p.4823.

[5] T. Shanmugasundaram, V.S. Sarma, B.S. Murty, M. Heilmaeir: Vol. 584-586 (2008), p.97.

[6] B.Q. Han and E.J. Lavernia: Adv. Eng. Mater. Vol. 7 (2005), p.457.

[7] T. Grosdidier and N. Llorca: Mat. Sci. Forum Vol 633-634, (2010), p.559.

[8] T. Grosdidier, G. Ji , and S. Launois: Scripta Mater. Vol. 57 (2007), p.525.

[9] X. Shen, J. Lian, Z. Jiang and Q. Jiang: Mat. Sci. Eng. A Vol. 487 (2008), p.410.

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

[11] R.Z. Valiev, R. k. Islamgaliev, I.V. Alexandrov, Progres in Mat. Sci.: Vol 45 (2000) p.103.

[12] Y. Minamino, Y. Koizumi, N. Tsuji, N. Mizuuchi, Y. Ohkanda: Sci. Techn. Adv. Mat. Vol. 5 (2004) p.133.