Deli Kong

Stepwise stabilization of low-melting constituents enables grain refinement and overburning suppression in highly alloyed Al–Zn–Mg–Cu alloys

High-strength Al–Zn–Mg–Cu alloys require high-temperature solution treatment to increase solute supersaturation, but severe Zn/Mg/Cu segregation and low-melting eutectic constituents make them highly vulnerable to overburning. Here, a multi-stage solution treatment (MST: 450/2h +...