The Phase-Field Simulation of the Grain Growth under External Field

Abstract:

A new phase field model coupled with external field was used to simulate 2D and 3D grain growth processing. The simulation results showed that 2D grain size distribution under external field was inhomogeneous. The evolutions of 2D grain under different external field strength were roughly the same, but the grain number was obviously different with the changes of external fields. Under the external field, the relationship between 2D grain area and time was linear. 3D grain distribution was inhomogeneous in the direction of the external field gradient. The nucleation gradually decreased in the direction of change.

• Periodical: Advanced Materials Research (Volumes 299-300)
• Pages: 69-72
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.299-300.69
• Online since: July 2011
• Authors: Li Li Zhang, Ming Gao, Shao Nan Tang
• Keywords: Computer Simulation, External Flow Field, Grain Growth, Phase-Field Method

References

[1] D. Raabe: Computational Materials Science. Wiley-VCH(1998), p.235.

[2] L.D. Landau, E.M. Lifshitz: Statistical Physics, Pergamon Press (1985), p.446.

[3] H.J. Diepers, C. Beckermann: Acta Mater. Vol. 47(1999), p.3663.

[4] A.A. Wheeler, B.T. Murrary, R.J. Schaefer: Physica D Vol. 66 (1993), p.243.

[5] S.G. Kim, W.T. Kim, T. Suzuki: Physical Rev. E Vol. 60(1999), p.7186.

[6] Sun Ya, Liu Guoquan and Wang Chao: Acta Metallurgica Sinica Vol. 40(2004), p.609.

[7] Zhao Daiping, Jing Tao, Liu Baicheng: Acta Metallurgica Sinica Vol. 39(2003), p.813.

[8] D. Fan, L.Q. Chen:. Acta Mater. Vol. 45(1997), p.1115.

[9] D. Fan and L.Q. Chen: Acta Mater. Vol. 45(1997), p.611.

[10] Yang Mei, Gao Ming: Journal of Shenyang Normal University (Natural Science Edition) Vol. 25(2007), p.167.