Intermetallic Compounds (IMCs) Formation in Al/Mg Dissimilar Alloy Solid State Joining: Experimental Study and Phase Field Modeling

On the microstructure and texture of intermetallics in Al/Mg/Al multi-layer composite fabricated by Accumulative Roll Bonding

“…6), indicating that the diffusion of AZ31 atoms is lower than that of Al 1050 ones (Li et al, 2015). Song et al (Song et al, 2022) stated that the different thickening kinetics of intermetallics compounds can be ascribed to variations in the composition, grain size, and substructure of the alloy substrate.…”

“…Furthermore, it was observed that the type of the layers used can also influence the diffusion process According to data from the literature (Song et al, 2022), the Mg17Al12 phase is the first IMC phase to form but the Al3Mg2 phase has a faster growth rate. Hence, the Mg17Al12 phase nucleates first as a result of the Al matrix saturated with Mg solute earlier, and the nucleation occurred once a sufficient driving force (super-saturation) has been achieved.…”

“…The formation mechanism and control methods of grain morphology and size in the reaction layer still need further extensive investigation. Nie et al (Nie et al, 2019) have investigated the orientation relationship between the IMCs and the matrix using EBSD and layer may be referred to as the high nucleation energy of the Al3Mg2 phase and may disappear when the intermetallic compound development is significantly enhanced by the governing kinetics (Song et al, 2022;Zhu et al, 2020). Furthermore, Fig.…”

“…(Habila et al, 2019;Kumar et al, 2020). Therefore, they have suitable metallurgical compatibility as well as close melting and recrystallization temperatures (Song et al, 2022).…”

“…Unfortunately, experimental studies on the metallurgical behavior of the development of IMCs cannot explain the physical mechanism behind this phenomenon, because their formation and kinetic characteristic are immensely complex to be quantified. Therefore, several studies have developed models that predict growth kinetics of the intermetallic phases (IMCs) formed in a reactive diffusion couple between two metals (Song et al, 2022;Wang et al, 2015). Dislocation behavior during severe plastic deformation in laminated composites plays a crucial role in ductility and strength of bulk materials.…”