Cu GB Diffusion in Al. Effect of Alloying by Cu and Ce

Abstract:

The diffusion of Cu in Al and Al based alloys was studied. It was shown the great scattering of triple product values, measured for different grain boundaries (GB) at the same samples. It was discussed in the terms of GB energy difference. It was also shown that GB triple product can be varied significantly by preliminary alloying of Al by 0.1% Cu. However, the alloying of Al by 0.5% Cu leads to disappearing of the effect of accelerated diffusion in GB in comparison with the bulk.

• Periodical: Defect and Diffusion Forum (Volumes 309-310)
• Pages: 73-78
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.309-310.73
• Online since: March 2011
• Authors: Alexey Rodin, Nikolai Dolgopolov, Andrei Simanov, Alla Zaytseva
• Keywords: Aluminum (Al), Copper, Grain Boundary Diffusion, Segregation

References

[1] N. Dolgopolov, A. Rodin, A. Simanov, and I. Gontar': Izvestiya vusov, Non-Ferrous metallurgy, (in Russian) Vol. 50 (2009), p.133.

DOI: 10.3103/s1067821209020114

[2] N. Dolgopolov, A. Rodin, A. Simanov, and I. Gontar': Mater. Lett. Vol. 62 (2008), p.4477.

[3] L. G. Harrison: Trans. Faraday Soc. Vol. 57 (1961), p.1191.

[4] J. C. Fisher: J. Appl. Phys. Vol. 22 (1951), p.74.

[5] R. T. P. Whipple: Phil. Mag. Vol. 45 (1954), p.1225.

[6] Е. D. Hondros and M. P. Seah: Int. Met. Rev. Vol. 22 (1997), p.262.

[7] J. Bernardini, Zs. Tokei, and D. L. Beke: Phil. Mag. A Vol. 73, N 1 (1996), p.237.

[8] T. Surholt and Chr. Herzig: Acta Mat., Vol. 45 (1997), p.3817.

[9] M. Astahov, B. Bokstein, A. Rodin, and M. Sinyaev: Izvestiya vusov, Non-Ferrous metallurgy, № 4 (1998), p.4 (in Russian).

[10] B.S. Bokstein and A.O. Rodin: Proc. Int. Conf. Mass and Charge Transport in Solids, (2000), p.213.

[11] M.B. Small, D.A. Smith, and AJ. Garratt-Reed: Scr. Metal. Mater. Vol. 3D (1994), p.1531.

[12] B.S. Bokstein, V.E. Fradkov and D. L. Beke: Phil. Mag. A, Vol. 65 (1992), p.277. Second day of the conference.