Localised corrosion initiation and microstructural characterisation of an Al 2024 alloy with a higher Cu to Mg ratio

An Auger and XPS survey of cerium active corrosion protection for AA2024-T3 aluminum alloy

“….) as detected with Auger spectroscopy and reported elsewhere [30][31][32]. The close-up SEM micrograph of a "zoom in" corrosion pit (Fig.…”

“…In the area of the corrosion pit (zone2), the oxygen peak on low energy side ( fig. 10B), shifts to 529.6 eV which it is significant of a Ce + IV state as found in CeO 2 [32]. A shoulder around 530.2 eV is still visible as expected in the Ce + III/Ce + IV mixture reported in the Ce3d spectrum ( fig.…”

Effect of 1-pyrrolidine dithiocarbamate on the galvanic coupling resistance of intermetallics – Aluminum matrix during corrosion of AA 2024-T3 in a dilute NaCl

“…Clearly, composition and microstructure of the layer vapor deposited are different from those of the solid alloy: alloying elements do not form coarse intermetallic particles but are homogenously dispersed throughout the layer. It is, indeed, quite difficult to approach the complex microstructure of the alloy [39][40][41][42][43]. Thus, EQCM results of the vapor deposited layer may be quite different from those that may be obtained with the target.…”

A Summary of Corrosion Properties of Al-Rich Solid Solution and Secondary Phase Particles in Al Alloys

“…For particles containing both active and noble elements, such as Al 2 CuMg, the active alloying elements dissolve leaving behind remnants with noble elements such as Cu. This is commonly referred to as dealloying corrosion as shown in Figure 1 [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. Particles consisting primarily of noble elements generally possess a high corrosion potential, and act as a cathode to support the oxygen reduction reaction or hydrogen evolution.…”