School of Resources;
Environment and Materials;
Guangxi University;
Nanning 530004;
China;
Key Laboratory of LCR Materials and Devices of Yunnan Province;
National Center for International Research On Photoelectric and Energy Materials;
School of Materials and Energy;
Yunnan University;
Kunming 650091;
China;
Al alloy; Micro-alloying; Precipitation; Atomistic mechanism; Transmission electron microscopy;