Investigation on the Explosive Welding of 1100 Aluminum Alloy and AZ31 Magnesium Alloy

Numerical simulation of explosive welding using Smoothed Particle Hydrodynamics method

“…3(e) and (f)), indicating that drastic plastic deformation takes place near the bonding interface. Drastic plastic deformation was also observed in our previous experiment, resulting in the hardening phenomenon and the presence of fine grains near the bonding interface due to dynamic recrystallization [17]. Fig.…”

“…Fig. 6(e) and (f) show the bonding interface of Al/Mg composite plates obtained in our previous experiments [17]. The experimental results also demonstrate that the size of the interfacial waves tend to increase with increasing the welding parameters.…”

“…3(d)). In our previous experiments, a thin elemental diffusion layer with a thickness of approximately 3-5 μm was generated on the bonding interface [17]. It can be interpreted that the formation of elemental diffusion layer is mainly due to the accumulated high temperature during high velocity impact of the flyer plate with the base plate.…”

Microstructural and Phase Composition Differences Across the Interfaces in Al/Ti/Al Explosively Welded Clads

“…These composites belong to a new class of materials, whose properties combine the large ductility of the metal matrix and the high hardness of intermetallic phases. [26] Such versatile materials are used in the production of electrical wires and industrial machinery (Al/Cu), [7,27] platters in the aerospace (Al/ Ti) [24] and automobile (Al/Mg) [28] industries, and composites for medical applications (Ti/Al 2 O 3 /NiCr). [29] Generally, the EXW process can be divided into three basic stages: detonation of an explosive material; deformation and acceleration of the flyer plate; and, finally, collision of the clads.…”

“…[23,25,[30][31][32][33] The manufacturing of EXW clads requires a number of parameters to be controlled, such as the collision angle, impact velocity, detonation pressure, and geometry, with respect to the type of bonded materials. [28,[34][35][36][37][38][39] However, the problem becomes even more complicated when more than only one interface is obtained. Therefore, in this manuscript, the simplest case with only two interfaces obtained in three-layered Al/Ti/Al clads is discussed.…”