Calculation of Valence Electron Structure of Precipitate Phases in Al-Cu Cast Alloy

Chang Tian; Rui Chun Wang; Run Xia Li; Rong De Li

doi:10.4028/www.scientific.net/AMR.311-313.758

Paper Titles

Regression Analysis and Determination of Activity Coefficients of Cd-Pb Alloy
p.736

Determination of Phase Transformation Point of New Type Ti-5Al-3.3V-8Mo-10Nb-1.0Zr-0.5Cr Alloy
p.742

Research and Implementation on Variant Design Based on Product Assembly Model
p.748

The Solute Redistribution during Solidification of Multi-Component Alloys
p.752

Calculation of Valence Electron Structure of Precipitate Phases in Al-Cu Cast Alloy
p.758

Negative Thermal Expansion of Tm₂Fe₁₅SiCr Compound
p.764

Modeling and Error Compensation of MEMS Gyroscope Dynamic Output Data within the Whole Temperature Range
p.768

Evolution of Microstructures and Mechanical Properties of Sr and Ca Containing Mg-4Al Alloy during Annealing Heat Treatment
p.772

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 311-313Calculation of Valence Electron Structure of...

Calculation of Valence Electron Structure of Precipitate Phases in Al-Cu Cast Alloy

Abstract:

Based on Empirical Electron Theory in solid (EET) and Bond Length Difference (BLD) the valence electron structures of precipitates in AlCu alloy during aging process were calculated. The results show that the different phase structure factors explain the thermal stability of phases in θ sequence, and the tendency of atoms solution is corresponding with the phase transition during aging from valence electron structure levels, which reveals the inside causes of ageing hardening is closely related to the covalent electron pairs in some bond of the precipitations and matrix.

You might also be interested in these eBooks

Advanced Materials and Processes: ADME 2011

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 311-313)

Pages:

758-763

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.311-313.758

Citation:

Cite this paper

Online since:

August 2011

Authors:

Chang Tian, Rui Chun Wang, Run Xia Li, Rong De Li

Keywords:

Alcu Alloys, EET, Precipitate, Valence Electron Structure

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] L.F. Mondolfo: Aluminum Alloys: Structure and Properties (Butterworths, London 1976).

Google Scholar

[2] J.Y. Zhang: Light Alloy Fabrication Technology. Vol. 26(1998), p.1 In Chinese.

Google Scholar

[3] Z.L. Liu: Valence Electron Structure of Alloy and Composition Design (Science and Technology Publications, Changchun 1990).

Google Scholar

[4] X.J. Liu: Computer Applications in Materials Science and Engineering (Northeastern University Publications, Shenyang 2007).

Google Scholar

[5] Y.F. Chen: Optical Transmission in Media (Ordnance Industry Publications, Beijing 1995).

Google Scholar

[6] R.L. Zhang: Empirical Electron Theory of Solids and Molecules (Jilin Science and Technology Publications, Changchun 1993).

Google Scholar

[7] Z.L. Liu, Z. L. Li, and W. D. Li: Interface Electronic Structure and Interface Properties (Science Publications, Beijing 2002).

Google Scholar

[8] M.E. Fine: Metall Trans. Vol. A6 (1975), p.625

Google Scholar

[9] J.M. Silcock, T.J. Heal, and H.K. Hardy: J. Inst. Met. Vol. 82(1953-54), p.239

Google Scholar

[10] Q. Gao, C.L. Lin, S. Gao and Z.L. Liu: Ordnance Material Science And Engineering. Vol. 30(2007), p.27 in Chinese.

Google Scholar

[11] J. Bradley, P. Jones: J. Inst. Met. Vol. 51(1933), p.131

Google Scholar

[12] S.H. Wang: Aluminum and Aluminum Alloys Heat Treatment (Machinery Industry Publications, Beijing 1986).

Google Scholar

[13] U. Schmidt, R. Unger, R. Gerloff: Journal of materials science. Vol. 30(1995), p.3265

Google Scholar

[14] Aluminum alloy heat treatment edit group: The Heat Treatment of Aluminum Alloy (Metallurgical Industry Publications, Beijing 1972).

Google Scholar

[15] R.X. Li: The Investigation of Solid-State Phase Transformation of High Strength Al-Si-Cu-Mg Cast Alloy. (China Doctor Dissertation Full-text Database, Shenyang 2004).

Google Scholar