Particle Stimulated Nucleation in Severely Deformed Aluminum Alloys

Abstract:

The microstructural changes were investigated in severely deformed 5182 alloy. The as-cast block was cold rolled with different reduction levels up to 98%. The deformation textures appearing after various rolling reductions account for minor qualitative changes (i.e. new texture components emerging with increasing rolling reductions) whereas significant quantitative differences were observed (i.e. changing intensity of rolling components). The presence of large non-deformable constituents affects both deformation and recrystallization textures. During rolling, large particles induce strain path changes in their vicinity, which produces microstructural heterogeneities. In recrystallization, the highly strained field around the particle induces particle stimulated nucleation (PSN). The current contribution tries to clarify the effect of different strain modes involved in severe plastic deformation on the development of recrystallization textures.

• Periodical: Materials Science Forum (Volumes 706-709)
• Pages: 389-394
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.706-709.389
• Online since: January 2012
• Authors: Jurij J. Sidor, Koen Decroos, Roumen H. Petrov, Leo A.I. Kestens
• Keywords: PSN, Severe Plastic Deformation (SPD), Texture

References

[1] F.J. Humphreys, M. Hatherly: Recrystallization and related annealing phenomena (Pergamon, Oxford 2004).

[2] J. Sidor, A. Miroux, R. Petrov, L. Kestens: Acta Materialia Vol. 56 (2008), p.2495.

DOI: 10.1016/j.actamat.2008.01.042

[3] P. Van Houtte, MTM-FHM Software Version, (MTM-KU, Leuven, 1995).

[4] J. Sidor, R. H. Petrov, L. A.I. Kestens: Mat. Sc. and Eng. A Vol. 528 (2010), p.413.

[5] O. Engler, J. Hirsch: Mat. Sc. and Eng. A Vol. 336 (2002), p.249.

[6] P. Van Houtte, E. Aernoudt: Zeitschrift für Metallkunde Vol. 66 (1975), p.202.

[7] R.A. Lebensohn, C.N. Tomé: Acta Metal. Mater. Vol. 41 (1993), p.2611.

[8] P. Van Houtte, S. Li, M. Seefeldt, L. Delannay: Int. J. of Plasticity Vol. 21 (2005), p.589.

[9] T. Baudin, D. Solas, A. L. Etter, D. Ceccaldi, R. Penelle: Scripta Mater. Vol. 51 (2004), p.427.

DOI: 10.1016/j.scriptamat.2004.05.001

[10] A.L. Etter, M.H. Mathon, T. Baudin, V. Branger, R. Penelle: Scripta Mater. Vol. 46 (2002), p.311.