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

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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.

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Periodical:

Advanced Materials Research (Volumes 311-313)

Pages:

758-763

DOI:

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

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Online since:

August 2011

Authors:

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

Keywords:

Alcu Alloys, EET, Precipitate, Valence Electron Structure

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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