Stress-Corrosion Cracking Susceptibility of Various Product Forms of Aluminum Alloy 2519

Hot deformation and processing map of 2519A aluminum alloy

“…Many studies on the weldability and the stress corrosion resistance of 2519A aluminum alloy have been reported [2][3][4][5][6][7]. The flow stress is the most basic parameter to characterize plastic deformation properties of metals and alloys, and the flow stress of metals determines the size of load and energy needed during the plastic deformation.…”

Influence of thermomechanical aging on microstructure and mechanical properties of 2519A aluminum alloy

“…Moreover, the Cu content within the PFZ is lower than that in the surrounding matrix and does not exceed 2% (mass fraction). According to the literature, the difference in electro-chemical potentials between the Cu-depleted zone and the Cu-rich matrix forms a strong galvanic cell with a potential difference of about 0.12 V [12]. Compared with the area of the cathodic matrix, the anodic Cu-depleted zone is small in area, thus leading to a high driving force for rapid intergranular corrosion.…”

Failure of an Al-alloy tail wheel trunion of a combat vehicle

“…5b) verified that this strongly adherent layer consists of typical anions (Cl, F, O) and cations (K, Ca, Mg, Si, Fe, Zn) found in humid soil. The presence of such anions indicates a possible, yet minor, contribution of chemical factors to the final failure of the component, as it is well known that Al-alloys are susceptible to pitting corrosion [19]. In Fig.…”

“…For these cases, castings meet the military needs for speed, agility and lightweight equipment, being in addition the most cost-effective and direct way to obtain complex metal shapes [7]. In this field, current research efforts focus on the optimisation of the chemical composition, the heat treatment [8,9] and/ or the manufacturing process [10][11][12] of Al-alloy components, in order to improve/ understand both their mechanical performance [13][14][15][16][17][18] and corrosion resistance [19,20].…”