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SCC susceptibility index (ISCC) of three peak-aged alloys. For Al Zn Mg alloys with 0 wt% Sc (A0), 0.06% Sc (A1) and 0.11% SC (A2)After homogenization treatment (470 °C for 24h), the ingot is preheated at 450 °C for 1H. Adapted with permission from ref. [41]. 2018 Li et al.
