Precipitation and dissolution kinetics in AlLiCuMg alloy 8090
作者： A. Luo , D.J. Lloyd , A. Gupta , W.V. Youdelis
DOI: 10.1016/0956-7151(93)90009-H
关键词:
摘要: Resistivity and differential scanning calorimetry (DSC) techniques are used to study the kinetics of precipitation dissolution GPB zones metastable phases ([delta][prime] S[prime]) in Al-Li-Cu-Mg alloy 8090. Three stages sequence during aging have been analyzed. A new analytical method is developed for DSC technique, which requires only one heating rate obtain kinetic parameters, results show good agreement with more conventional varying rate. The low-temperature endothermic peak thermogram interpreted as Li-bearing zones, supported by hardness results. activation energy, Q, growth parameter, n, determined resistivity previously published data.
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