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Table 1 - Chemical composition of 3004 alloys used in the present work Alloy ID Elements (wt. %) Mn Mg Fe Si Al 1F 1.28 1.16

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Table 1 - Chemical composition of 3004 alloys used in the present work Alloy ID Elements (wt. %) Mn Mg Fe Si Al 1F 1.28 1.16 0.10 0.25 Bal. 3F 1.26 1.16 0.31 0.26 Bal. 6F 1.24 1.18 0.58 0.25 Bal.

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Table 2 - SEM-EDS results for the intermetallics shown in Figure 1

Alloy ID Intermetallic Elements (wt. %)

Mn Fe Si Mg Al 1F A 12.85 6.76 6.77 0 70.62 B 0 0 13.31 19.29 67.4 3F C 11.74 10.34 0 0 77.92 D 0 0 18.01 21.81 60.18 6F E 11.44 13.22 0 0 75.34 F 0 0 24.67 27.64 47.68

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Table 3 - Evolution of intermetallic volume fraction in experimental alloys

Alloy ID Dominant intermetallic

Volume fraction (vol. %)

Dominant Mg2Si

As-cast 375°C /48h As-cast 375°C /48h 1F α-Al(MnFe)Si 1.05 ± 0.32 1.25 ± 0.26 0.22 ± 0.11 0.21± 0.06 3F Al6(MnFe) 2.18 ± 0.41 2.51 ± 0.34 0.23 ± 0.05 0.21 ± 0.08

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Table 4 Estimated concentration of Mn in solid solution (CMn)

at as-cast and 648K (375°C)/48h conditions

Alloy ID Concentration (wt. %) ΔC

As-cast 375 °C/48h

1F 1.21 0.78 0.43

3F 1.17 0.65 0.52

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Table 5 - Characterisitic of dispersoids in experimental alloys after 648K (375°C)/48h

Alloy ID

Dispersoids Particle free zone

(PFZ) Average

equivalent diameter, nm

Volume fraction, Vol.% Volume fraction, %

1F 74 ± 22 2.55 ± 0.72 25.6 ± 2.3

3F 52 ± 15 3.14 ± 0.58 19.7 ± 1.9

Figure

Table 1 - Chemical composition of 3004 alloys used in the present work Alloy ID Elements (wt
Table 2 - SEM-EDS results for the intermetallics shown in Figure 1
Table 3 - Evolution of intermetallic volume fraction in experimental alloys
Table 4 Estimated concentration of Mn in solid solution (C Mn ) at as-cast and 648K (375°C)/48h conditions
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Table 1 - Chemical composition of 3004 alloys used in the present workAlloy IDElements (wt. %)MnMgFeSiAl1F1.281.16

Table 4 Estimated concentration of Mn in solid solution (C Mn ) at as-cast and 648K (375°C)/48h conditions. Alloy ID