Revealing foundations of the intergranular corrosion of 5XXX and 6XXX Al alloys

Corrosion Behavior of Cold-Formed AA5754 Alloy Sheets

“…Vignesh et al [ 32 ] analyzed the susceptibility to intergranular corrosion (IGC) of AA5083 and showed that the alloy’s susceptibility to IGC may be reduced by grain structure refinement, dispersion, and the partial dissolution of secondary Mg 2 Al 3 in the matrix. This has been confirmed in another study [ 33 ], which showed that the pitting, IGC and exfoliation all depended on the precipitate distribution. The study suggested that grain refinement can effectively enhance the IGC resistance of the commercial AA5083-H111.…”

The Localized Corrosion and Stress Corrosion Cracking of a 6005A-T6 Extrusion Profile

“…The commercial 6005A-T6 aluminum extrusion profile for the frames of high-speed trains—the composition and the schematic diagram of which are presented in Table 1 and Figure 1 a, respectively—was utilized in the present study. Based on our previous works [ 1 , 2 ], it is understood that pitting and intergranular corrosion along the extrusion direction would be the most serious. Thus, it would be essential to the estimate/investigate the SCC resistance along the deformation direction.…”

“…With the quick development of the high-speed railway and the operation of the China Railway High-speed service for more than a decade, one of the greatest challenges is the management/maintenance of these trains in environmental conditions [ 1 , 2 , 3 ]. In order to support the foundations for interactive corrosion risk management, it is essential to reveal the foundations of environmentally induced cracking caused by corrosion [ 4 , 5 ].…”

Conductive Al Alloys: The Contradiction between Strength and Electrical Conductivity

“…Al–Mg–Si system alloys are widely used as conducting materials due to the comprehensive properties of high strength‐to‐density ratio, excellent EC, formability, and relatively good thermal stability. [ 1,22 ] In general, the strength of Al alloys is relatively low under as‐cast conditions characterized by low EC (generally below 50% IACS). The solution aging process is available for the significant improvement in its strength and conductivity.…”