Abstract:
A direct diffusion bonding between marine grades aluminium alloy AA5083
and steel A36 was carried out in an atmospheric condition at a fixed
temperature value of 550°C. Specimen were heated in a furnace at a fixed
value of 60 min holding time under a pre-pressed condition with variables
of pressure between 6MPa, 7MPa, 8MPa, 9MPa, and 10MPa. All five
specimens were successfully joint according to the planned parameters.
Strength of the specimen joining was measured via Izod Impact Test. Test
resulted with an average value of 1.254J and the highest value of impact
load was 1.425J by specimen number three at a pressure of 8MPa. For
this experiment, it showed that the strength of joints increased, for the
specimen number one, two, three, respectively. However, on specimen
four and five, the strength of the joints decreased. Improper surface
preparation affected the strength of specimens joining thus resulted in low
value of impact load.
