Influence of Lithium on the Kinetics of the Microstructural Transformations in 7075-Li Alloy

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Influence of Lithium on the Kinetics of the Microstructural Transformations in 7075-Li Alloy
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Abstract:

Differential Scanning Calorimetric(DSC) techniques are used to study the precipitation behaviour of 7075 aluminum alloys and the influence of Li on the microstructure transformation of the7075-Li alloy during aging. The kinetic parameters for GP zones and h phase dissolution are calculated in 7075 and 7075+Li alloys. The results show that Li slightly affects the activation energy for GP zones dissolution, but markedly raises the activation energy for h phase dissolution.

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[Wei Fang, Zhao Zhongkui, Bai Pucun, Zhou Tietao, Liu Peiying, Zhang Yonggang, Chen Changqi. Influence of Lithium on the Kinetics of the Microstructural Transformations in 7075-Li Alloy[J]. Rare Metal Materials and Engineering,2004,33(9):945~948.]
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