Modelling of Grain Boundary Stability of Materials under Severe Plastic Deformation and Experimental Verification

Abstract:

Thermodynamic stability of Grain boundary in materials under severe plastic deformation was simulated by the Monte Carlo and the phase field methods. Computer simulations were performed on 3-dimensional textured materials. The Monte Carlo simulation results were qualitatively in good agreement with those by the phase field model. The classification of the solution of differential equations based on the mean-field Hillert model describing temporal evolution of the scaled grain size distribution function was in good agreement with those given by the Computer simulations. The ARB experiments were performed for pure Al and Al alloys-sheets in order to validate the computer simulation results concerning the grain boundary stability of textured materials. With use of the Monte Carlo and the phase field methods. Effect of grain boundary mobilises and interface energy given by the computer simulations.

• Periodical: Materials Science Forum (Volumes 638-642)
• Pages: 2724-2729
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.638-642.2724
• Online since: January 2010
• Authors: Yoshiyuki Saito, Chitoshi Masuda
• Keywords: Anisotropic Grain Boundary Mobility, Grain Growth, Monte-Carlo Method (MC-Method), Phase Field Modellig, Severe Plastic Deformation (SPD), Texture, Thermodynamic Stability

References

[1] Suwa Y, Saito Y, Onodera H: Comp. Mater. Sci. 40(2007), pp.40-50.

[2] Fan D and Chen L-Q: Acta Mater. 45 (1997), pp.611-632.

[3] Abbruzzese G, Lücke K: Acta metal. 34 (1986), pp.905-914.

[4] Eichelkraut H, Abbruzzese G, Lücke K: Acta metal. 36 (1988), pp.55-68.

[5] Mehnert K, Klimanek P: Comp. Mater. Sci. 9 (1997), pp.261-266.

[6] Anderson MP, Srolovitz DJ, Grest GS, Sahni PS: Acta Metall. 32 (1984), pp.783-791.

[8] Anderson MP, Grest GS, Srolovitz DJ: Phil. Mag. Vol. B-59 (1989), pp.293-329.

[9] Y. Saito: ISIJ International 38(1998), pp.559-566.

[10] Hillert M: Acta Metall. 13 (1965), pp.227-238.

[11] Krill CE and Chen L-Q: Acta Mater. Vol. 50 (2002), pp.3057-3073.

[12] Suwa Y, Saito Y, Onodera H: Comp. Mater. Sci. 44(2008), pp.286-295.

[13] Ma N, Kazaryan A, Dregia DA, Wang Y: Acta Mater. Vol. 52 (2004), pp.3869-3879.

[14] Saito, Y.: "Introduction to the kinetics of Diffusion controlled microstructure evolutions, Corona Publishing, Tokyo 2000, pp.108-111 [in Japanese, ].

[15] Suwa, Y. and. Saito, Y: Mater. Trans, 46(2007), pp.1214-1220.

[16] Courant J and John F: Introduction to Calculus and Analysis I, Springer-verlag, New York1989), pp.222-223.

[17] Huang XX, Hansen Tsuji, N: SCIENCE 312(2006) pp.249-251.

[18] Suwa Y and Saito Y: Scripta Mater: 13(2008), pp.407-410.

[19] De Groot, C.R. and Mazur, p. : Non-equilibrium Thermodynamics, Dover, New York, (1984).