Abstract
As-cast Mg (AZ31B) -3.0 Nd-0.2 Zn-0.7 Zr (weight %) and AA7075 alloy friction stir lap linear joints were studied for lap-shear behaviours. Several parameters were employed, each with a unique rotation and travel speed, to release the joints. The Al-Mg binary schematic reveals that the eutectic reaction temperature is between 438 °C and 460 °C, suggesting that the peak temperatures for both samples could be greater than these values. This is indicated by the study of the temperature. Aluminium and magnesium alloys contact exhibits ferocious intermixing, resulting in the intermetallic Al3Mg2. The highest tensile shear failure force, which is approximately 2.24 kN, is displayed by welds with rotational speeds of 1000 rpm and travel speeds of 130 mm/min. The value increased by 15% after being heated at 400 °C for 30 min.
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