Study on the Pit Growth During Corrosion Fatigue of Aluminum Alloy

Abstract

Tension-compression and rotating bending fatigue tests were carried out using aluminum alloy 2024-T3 in 3% sodium chloride solution. During corrosion fatigue process, many corrosion pits were initiated at the early stage, and cracks were initiated from the pits. The characteristics of the pit growth were investigated in detail. The critical condition for crack initiation from the corrosion pit was also studied. Crack initiation periods during corrosion fatigue were evaluated on the basis of the corrosion pit growth law.

Improvement in Corrosion Fatigue Resistance of Mg Alloy Due to Plating

“…This observation is common with that of previous studies of other materials, such as steel and aluminum alloy [9,10]. Fig.…”

Effect of electroless-Ni-plating on corrosion fatigue behavior of magnesium alloy

“…This observation is common with that of previous studies of other materials, such as steel and aluminum alloy [7,8].…”

A multi-scale corrosion fatigue damage model of high-strength bridge wires

“…In microscopic scale, the microcracks propagate along the grain boundaries at the initial time and then through the grains when the microcracks reach a certain length (Jiang et al., 2010; Walde and Hillberry, 2007). According to the corrosion fatigue behavior of aluminum alloy observed in NaCl solution (Hu et al., 2012; Ishihara et al., 2008), the corrosion fatigue cracks emanate from the pits. Walde and Hillberry (2007) also found that the microcracks occurred not only near the maximum depth point of the pits but also on the side of the pits.…”