Abstract

Static electric fields were applied on an aluminium–lithiumalloy during solution treatment. The conductivity and Vickers hardnessof the quenched Al-Li alloy is changed with the effect of electricfield. The Vickers hardness increases with the applied electric fieldfor a certain solutionizing time but decreases with the time under anelectric field. In the absence of the electric field, the Vickershardness and the conductivity increase synchronously, while reversedafter electric field treatment. Positive and negative electric fieldshad the similar effect. The change of the local electron density inalloy caused by electric field is presented to explain the effect.

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