Table 2: Chemical composition of the arrowed precipitates in the peak-age alloys. (Li cannot be detected).

Phases

Mg

Al

Mn

Cu

Zr

Ag

Zn

Ti

L, wt.%

0.56

79.44

1.48

12.74

0.00

0.01

5.74

0.02

M, wt.%

0.50

79.35

1.01

11.68

0.00

0.07

7.35

0.00

N, wt.%

0.46

79.62

4.41

9.35

0.40

0.09

5.68

0.00