Effect of hot-dip Al–1Si-0.3 M (La/Sc/Yb) coating on the interface of 6061/Q345 composite plate by solid-liquid cast-rolling

To improve the interfacial bonding strength of 6061/Q345 aluminum/steel composite plates, an intermediate alloy layer was hot-dip coated on Q345 steel before solid-liquid cast-rolling. In this work, first-principles calculations together with experimental characterization were employed to investigate the influence of hot-dip Al-1Si-0.3M (La/Sc/Yb) coating on the interfacial microstructures and mechanical properties of 6061/Q345 aluminum/steel composite plates. The theoretical calculations showed