Intergranular corrosion is the main type of Al-Cu-Mg aluminum alloys, which seriously reduce lifetime aircraft structural parts. In this paper, microstructure and intergranular behavior 2024 alloy with varying Cu Mg content were studied by using a scanning electron microscope (SEM), transmission (TEM), three-dimensional atom probe (3DAP). The results show that nano-scale θ (Al2Cu) S (Al2CuMg) p...

This paper deals with the improvement of material surface state friction stir welding paths modified in situ by plastic deformation through ball burnishing. The metallurgical and topological states materials joined this technique are typically detrimental to ulterior performance workpiece, it is believed that burnishing can improve these enhance functioning. study divided into two phases. first...