Distribution rule of corrosion damage morphology parameters for aluminum alloy

Corrosion damage is very critical in the aircraft structure, especially in the highly corrosive marine environment. To better assess the residual strength and more accurate predict the life extension for aircraft structure, the corrosion test for any new aluminum alloy is an essential step. In this paper, different statistical analysis methods are employed and compared to get the best corrosion damage distribution rule for a new type of aluminum alloy. The data are collected through the equivalent accelerated corrosion test base on key environment data.