Influence of Cd and In on the Formation Kinetics of the δ' Metastable Phase in Al-Li-In(Cd) Alloys
The influence of the cadmium and the indium on the kinetics of the δ’ metastable phase precipitation has been studied in Al-8.5at.%Li and Al-8.5%at.%Li- 0.2at.%In(0.3%at.%Cd) solid solutions. From the hardness isotherms the volumic fraction of the formed δ’ metastable phase is determined for different times of ageing at 150, 180 and 200°C. The incubation times of δ’ deduced from the precipitation kinetics show that In and Cd atoms retard the δ’ precipitation.
W.J. Poole, M.A. Wells and D.J. Lloyd
A. Raho and K.-H. Mouhyddine, "Influence of Cd and In on the Formation Kinetics of the δ' Metastable Phase in Al-Li-In(Cd) Alloys", Materials Science Forum, Vols. 519-521, pp. 479-482, 2006