Study the Effect of Cold Rolling of Aluminum-Magnesium (5083) Alloys on the Erosion-Corrosion Test at the Impact Angles (30°, 90°) in River Water

The present work investigates the effects of cold rolling on the erosion- corrosion rate of (al-mg). the alloys specimens which were used for the marine applications were cold rolled at different reductions (2.5, 5, 7.5%), then tested for erosion- corrosion using dynamic rig at different exposure time (0-15 h). to measure the erosion–corrosion rate at impact angles (30º, 90º) . the results showed that the heat treatment of alloys (5083) didn’t improve the erosion- corrosion resistance; this was noticed in the homogenized specimens. erosion/corrosion resistance at impact angles (30º, 90º) was found good at two impact angles, while erosion/corrosion resistance for (5083) alloys at impact angle 90º was found higher than impact angle 30º, the specimens of the rolled alloys (2.5, 5, 7.5%) reductions showed erosion/corrosion resistance higher than before and after homogenizations process at both impact angles of (30º & 90º) respectively. the percentage error that obtained from experimental and theoretical at impact angles 30º & 90° were 25 % and 30% respectively.