Investigating the Diffusion bonding of the transient liquid phase of magnesium AZ31 to aluminum 5083 using silver interlayer using PVD method

In this paper, the possibility of creating a solid state penetration weld between two dissimilar metals, magnesium AZ31 and aluminum 5083, with the help of a silver interlayer, using the PVD method and using silver foil in a vacuum furnace has been investigated. Transient liquid phase welding was performed at two temperatures of 450 and 490 °C, and the bonding time for all samples was 60 minutes. The microstructure of the penetration band and the areas around it were examined with an OM microscope. SEM and EDS energy dispersive spectrometer were also used to examine the microstructural characteristics in the bonding area. The results show that the best bond was obtained at a bonding temperature of 450 °C and in a weld in which a silver interlayer was applied using the physical vapor deposition method. The shear strength of this weld was measured to be 15.81 MPa. The results obtained indicate that applying a silver intermediate layer by PVD method will improve the welding properties at the joint and increase the strength. Also, increasing the joining temperature will reduce the strength. On the other hand, the penetration rate of silver in the weld base metals and the resulting shear strength are desirable compared to similar cases.

Investigating the Diffusion bonding of the transient liquid phase of magnesium AZ31 to aluminum 5083 using silver interlayer using PVD method Keywords:

Diffusion bonding , Al5083 , Mg AZ31 , Inter layer Ag , PVD , Furnace under vacuum