Crystallography and Computer Simulation of Heat Treated Co- 10 at. Pct. Cu Alloys

Abstract:

The influence of heat treatment on phase decomposition of Co-10 at. pct. Cu alloy was studied. The materials and phase compositions were studied by using energy dispersive spectrometry (EDS) and X-ray diffraction (XRD) techniques. XRD analysis showed that the samples contained Co, Cu, CuO and CoCu2O3 phases depending on the heat treatment regimes. Moreover it is found that the formation of dendrite Co phase render the spinodal decomposition even for deep long aging inside the miscibility gap. The crystal structural parameters were refined with FULLPROF program. 2-D computer simulation indicates that the morphology and the shape of the microstructure agree with experimental SEM micrographs for the Cu rich phase.

• Periodical: Advanced Materials Research (Volume 685)
• Pages: 324-328
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.685.324
• Online since: April 2013
• Authors: Abdelazim. M. Mebed
• Keywords: Co-Cu Alloy, Computer Simulation, Grain Size, Phase Decomposition, Rietveld Analysis, X-Ray Diffraction (XRD)

References

[1] A. M. Mebed. and J.M. Howe,.J. Appl. Phys. 100 (2006) 074310.

[2] T. Fujita, S. Nishimura, T. Fujinami, K. Kaneko, Z. Horita, D. J. Smith Mat. Sci. Eng. A 417(2006) 149.

[3] H.-B. Noh, K.-S. Lee, P. Chndra, M.-S. Won, Electrochimica Acta 61(2012)36.

[4] A. Vannozzi, G. Thalmaier, A. A. Armenio, A. Augieri, V. Galluzzi, A. Mancini, A. Rufoloni, [5] T. Petrisor, [5] G. Celentano Acta Materialia 58 ( 2010) 910

DOI: 10.1016/j.actamat.2009.10.006

[5] Cao, C.D., G.P. Gorler, D.M. Herlach, B. Wei, Mater. Sci. Eng. A, 325 (2002)503

[6] C.D. Cao, B. Wei, D.M. Herlach, Phys. Rev. Lett. 89 (2002) 075507.

[7] M. Kolbe, C.D. Cao, X.Y. Lu, P.K. Galenko, B. Wei, D.M. Herlach, Mater. Sci. Eng. A, 375-377(2004) 520

[8] A. M. Mebed, M.I. Abd-Elrahman, A.M. Abd-Elnaiem, M.A. Gaffar, Phase Trans. 8 (2009)587

DOI: 10.1080/01411590903298744

[9] A. M. Mebed, A. M. Abd-Elnaiem, T.B. Asafa, M.A. Gaffar, Phase Trans. (2012) 1.

[10] A. M. Mebed, T. Koyama, T. Miyazaki, Computational Materials Science 14(1999)318

[11] C. D. Cao, Z. Sun, X. J. Bai, L. B. Duan, J. B. Zheng, F. Wang, J Mater Sci. 46(2011)6203

[12] D. Rogalla, D. Amsterdam : IEEE, 1969.

[13] D. Porter, K. Easterling, London, UK, Chapman & Hall, 1992.

[14] R. H. Yu, X.X. Zang, J. Tejada, M. Knobel, P.Tibeto, P. Alliset, J. App. Phys. 78 (1995) 392.

[15] R.A. Khan, A.S. Bhatti, Journal of Magnetism and Magnetic Materials 323(2011) 340.

[16] H.M. Rietveld, J. Appl. Cryst. 2(1969) 65.

[17] A. Le-Bail, H. Dwory, J. L. Fourquet, Mat. Res. Bull. 23(1988) 447.

[18] G. S. Pawley, J. Applied Crst.14(1981)357.

[19] M. A. Gaffar, M. M. Ahmed, K. Yamada, T. Okuda, J. Phys. D: Appl. Phys. 40(2007) 4360

[20] A.G. Khachaturyan in: "Theory of Structural Transformation in Solids," Wiley, NY, 1983.

[21] T. Koyama, T. Miyazaki and A.M. Mebed: Metall. Mat. Trans. A26 (1995) 2617