5083 Aluminum Alloy – Supplied in sheet marine grade tempers H116, H321, H323; to spec ASTM B928. Tempers.O, H112, H32; to spec ASTM B209, and extrusion shapes in various tempers and specifications. This is an excellent marine environment corrosion resistant aluminum alloy, It is primarily an alloy used for its corrosion resistant properties as it is especially good on inter granular corrosion resistance. Also, the tensile and yield strength is higher than 5086 alloy, so often these properties too are used by designers for their aluminum vessels. This alloy also has good welding capabilities for fabricating vessels. 5083 is also in inventory as H32 temper which is a good standard engineering alloy, but it does not have the corrosion resistance of the other special marine tempers.
5083 aluminum sheet application: Due to its strength and temperature characteristics, 5083 aluminum plate is used in: pressure vessels truck, marine, underwater vehicles cryogenic equipment””
Alloy 5083 aluminum sheet have higher strength than 5052 plate and has exceptional thermal conductivity. In the tempered condition, it retains good formability due to excellent ductility. It is highly suitable for welding and can be hardened by cold work. Because Alloy 5083 exhibits excellent resistance to general corrosion, it is used in marine applications. Since Alloy 5083 is capable of withstanding extremely low temperatures without brittleness or loss of properties, it is especially suited to the cryogenic market.
The results of a comparative study on microstructural evolution and damage in 6061-T6 and 5083-H131 aluminum alloys tested at high strain rates are discussed. Cylindrical samples of these alloys were tested in compression using instrumented direct impact Hopkinson Bar. Retention of heat and intense thermal softening along narrow bands during impact resulted in inhomogeneous deformation caused by shear strain localization along these bands. Deformed bands consisting of highly distorted and elongated grains were observed in the Aluminum 5083-H131 alloy after high velocity impact. On the other hand, adiabatic shear bands that look similar to the white etching bands commonly found in hardened steels were observed in the Aluminum 6061-T6 alloy. Whereas grain coarsening occurred inside the adiabatic shear bands in the Aluminum 5083-H131 alloy, the adiabatic shear bands in Aluminum 6061-T6 alloy were observed to contain much finer grains than the bulk material.