Environmentally assisted cracking resistance of Al–Cu–Li alloy AA2195 using slow strain rate test in 3.5% NaCl solution

Novel combination of indicators to compare the corrosion behaviors of Al, Al–Li alloy 2A97, and other Al alloys

“…Till now, there are many open literature on comparing the anticorrosion properties of Al–Li alloys with those of Al [ 4 ] or Al alloys. [ 5–9 ] Luo et al [ 5 ] compared the electrochemical behaviors of alloys 2A97‐T3, 2A97‐T6, 2060‐T8, AA2099‐T83, and AA2024‐T3 in 3.5% NaCl solution with the potentiodynamic polarization measurements. They found that the corrosion potential ( E c ) of alloy AA2024‐T3 was nobler than those of the four Al–Li alloys, indicating that AA2024‐T3 owned the least corrosion susceptibility among the five alloys.…”

“…The inferiority in corrosion property of Al–Li alloy to Al alloy was observed, while the opposite conclusions were drawn by others. [ 7–9 ] The degradation of the tensile properties of alloy AA2198 and alloy AA2024 with different exposure spans to exfoliation corrosion solution was studied by Alexopoulos et al [ 7 ] The lesser degradation rate of alloy AA2198 revealed its superior corrosion resistance over alloy AA2024. The comparison of corrosion behaviors between alloy AA2219‐87 and alloy AA2195‐87 was made by Ghosh et al [ 8 ] through immersion tests and potentiodynamic polarization measurements.…”

“…[ 7–9 ] The degradation of the tensile properties of alloy AA2198 and alloy AA2024 with different exposure spans to exfoliation corrosion solution was studied by Alexopoulos et al [ 7 ] The lesser degradation rate of alloy AA2198 revealed its superior corrosion resistance over alloy AA2024. The comparison of corrosion behaviors between alloy AA2219‐87 and alloy AA2195‐87 was made by Ghosh et al [ 8 ] through immersion tests and potentiodynamic polarization measurements. They concluded that alloy AA2195‐87 had the better corrosion performance from the three perspectives of the corrosion rate, depth, and density of corrosion pits.…”

Effect of pH on Stress Corrosion Cracking of 6082 Al Alloy

“…Indeed, such aggressive conditions are frequently encountered in various industrial and technological applications (e.g., structural and engine components in passenger and transport ships) where 6082 aluminum alloy components are used. It has been clearly shown that the majority of aluminum alloys are susceptible to SCC [4][5][6][7][8][9][10][11][12]. For this reason, many researchers have tried to improve the SCC resistance of aluminum alloys by utilizing different approaches such as thermomechanical [13] and post heat [14] treatments, as well as surface modifications [15] and deposition of coatings [16].…”

“…Despite the many existing studies on the SCC behavior of aluminum alloys [4][5][6][7][8][9][10][11][12][13][14][15][16], very little is actually known about the SCC susceptibility of the widely applied 6082 aluminum alloy. In addition, most of the previous work has been performed under neutral pH environments, neglecting the significant effect of pH on the occurring mechanisms.…”