This collection of peer-reviewed papers by results of 15th International Conference on Aluminium Alloys (ICAA15, 12-16 June, 2016 in Chongqing, China) that are cover most aspects of aluminium alloys, including casting and solidification; phase transformations; thermo-mechanical processing; metal plasticity and forming; strength, fracture and fatigue; advanced atomic-scale characterization; corrosion and surface properties; novel processes and alloy design; modelling and numerical simulation.