Abstract
In this research, diffusion bonding was carried out to produce transition joints between mild steel A36 (Fe A36) and aluminium Al 5083 (AA5083) with the presence of gallium (Ga) as an interlayer between the two faying surfaces. The microstructural development and interfacial growth of intermetallic compounds at the interface layer between Fe A36 and AA5083 after the diffusion bonding process were investigated. The joining was performed by clamping the two materials with a Ga interlayer and then heated in a furnace. The interlayer developed from this diffusion heating in air condition provides an average thickness of 30 μm. Characterization of intermetallic compounds was conducted using SEM-EDX and XRD. The results showed that SEM-EDX confirmed the occurrence of interdiffusion of elements from Fe A36 and AA5083 present at interlayer. XRD analysis reveals the formation of Fe3Al at the diffusion layer.
Highlights
There is an increasing trend in the manufacturing industry such as light-weighting that calls for enhanced performance and functionality, which has prompted the use of hybrid and multi-material structures, increasing the need for joining of dissimilar materials
The need for solving a substantial technological and engineering challenge in the joining of dissimilar materials [1] is essential in complex-function industrial applications [2,3]
The reduction in car body weight is attainable from the combination of steel with aluminum in car body modularisation construction which results in less fuel consumption [2]
Summary
There is an increasing trend in the manufacturing industry such as light-weighting that calls for enhanced performance and functionality, which has prompted the use of hybrid and multi-material structures, increasing the need for joining of dissimilar materials. Solid-state diffusion bonding is a process by which two nominally flat interfaces can be joined at an elevated temperature The need for solving a substantial technological and engineering challenge in the joining of dissimilar materials [1] is essential in complex-function industrial applications [2,3]. Mechanical assembly methods used to join dissimilar metals are riveting, screwing, clinching, or roll bonding [4,5,6]. This research focuses on the integration of two dissimilar metals, known as the Joining of Dissimilar
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