The article presents selected issues related to the operational safety of maritime transport means in relation to the destructive, corrosive impact of the marine environment. Structural elements of transport means, made not only of aluminum alloys, undergo gradual corrosive degradation during operation. The simultaneous, complex interaction of deformations (stresses) of structural elements and the corrosive agent intensifies corrosive processes.The consequence of this action is material loss, causing a reduction in the original load-bearing cross-sections of structural elements and an increase in safety risks to the health and life of ship crews.
High-strength 7xxx series aluminum alloys exhibit significantly worse resistance to stress corrosion than the 5xxx series alloys commonly used in shipbuilding, and their welded joints require additional anti-corrosion protection to increase the operational safety of marine structures. Corrosion resistance is an essential performance feature of any structural material, which takes on particular significance when the operating environment is marine. (…)
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Source: Logistyka Magazine