Calculation of Statistical Values of Phase Interface Valence Electron Structure Parameters of Cu-Zn Alloy

Abstract:

Based on the average atom model, the statistical values of valence electron structure (VES) parameters Δρ′, σ of homophase interface and heterpphase interface had been calculated in Cu-Zn alloy. VES parameters can characterize properties of interface bonding. The effect of Zn in the Cu matrix on the interface strengthening was discussed by the Δρ′ and σ. The calculation results showed that Δρ′ and σ values of homophase interface and heterophase interface of alloy phase were bigger than ones of Cu matrix. It was the essence of interface strenghening. The heterophase interface value σ was smaller compared with the homophase interface value σ under different Zn contents (weight percent). It was the reason that the stability of matrix was superior to that of between matrix and solid solution.

• Periodical: Advanced Materials Research (Volumes 299-300)
• Pages: 147-150
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.299-300.147
• Online since: July 2011
• Authors: Fei Li, Xia Zhao
• Keywords: Calculation, Cu-Zn Alloy, Phase Interface, Statistical Value, Valence Electron Structure

References

[1] Y. Liu, Z.L. Liu, W.D. Liu, et al: Prog. Nat. Sci( in Chinese). Vol. 12(2002), p.1172.

[2] Z.G. Sun, X.J. Qu and L. Gu: Materials Science and Technology. Vol. 13(2005), p.474.

[3] S.G. Jia, P. Liu, M.S. Zheng, et al: The Chinese Journal of Nonferrous Metals (in Chinese). Vol. 18 (2008), p.1522.

[4] Z.L. Liu, Z.L. Li and W.D. Liu: Interface Electron Structure and Interface Properties (in Chinese) (Science Press, Beijing 2002).

[5] Z.L. Liu and C. Lin: Statistical Values of Valence Electron Structure Parameters and Mechanical Properties Calculation of Alloy (in Chinese) (Metallurgical Industry Press, Beijing 2008).

[6] R.L. Zhang: Empirical Electron Theory in Solids and Molecules (in Chinese) (Jilin Science and Technology Publishing House, Changchun 1993).

[7] C. Lin and Z.L. Liu: Sci. China Ser. E (in Chinese). Vol. 51(2008), p.1867.

[8] C. Lin, Z.L. Liu and Y.Q. Zhao: Metall. Mater. Trans. Vol. 40A (2009), p.1049.

[9] C. Lin, G.L. Yin, Y.Q. Zhao, et al: Mater. Chem. Phys. Vol. 125(2011), p.411.

[10] C. Lin, G.L. Yin, Z.L. Liu, et al: Rare Metal Materials and Engineering (in Chinese). Vol. 39(2010), p.189.

[11] Q.J. Wang: Nonferrous Heat Treatment Technology (in Chinese) (Chemical Industry Press, Beijing 2008).