研究了Al-Zn-Li-Mg-Cu-Zr合金在393K, 433K和473K时效过程中δ′相的长大规律, 发现当合金在393?K时效时, δ′相的长大符合LSW长大规律; 当合金在433?K和473?K时效时, δ′相半径的3次方与时效时间符合抛物线关系, 这与在此温度下沉淀析出X相有关.
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