Dynamic pitting processes of 316 stainless steel in NaCl + Na2CO3 solution with digital holography

Investigation of the effects of the magnetic field on the anodic dissolution of alloy 690 in SO42− + SCN− solution using digital holography

“…8 ). MF always inhibits pitting corrosion by preventing localized acidification [ 26 , 27 ] due to the stirring effect of F L .…”

Insight into Intergranular Corrosion of the Aluminum Alloy 2024-T3: Effect of Pre-Charged Hydrogen

“…On the one hand, the porous corrosion products accumulated along the GB can act as barriers to mass transfer, which may increase the concentration of H + by 5 orders of magnitude, resulting in easy corrosion propagation along GBs. 54 The decreasing of the pH values in the local anodic zone is caused by the hydrolysis of the dissolved metal cations (Eq. 2, Eq.…”

Review of the application of digital holography in corrosion studies

“…Figure 1 depicts the schematic diagram of the DHII system, which was the same as that used in the work (Li et al , 2008) and used to detect changes in the concentration gradient at the interface in situ . Figure 2 shows the schematic diagram of the DHSI system, which was the same as that used in the work (Yuan et al , 2021) and was designed to observe the dynamic processes on the surface of the electrode in situ . These holographic techniques are useful for studying corrosion processes of metallic materials.…”

“…Figure 4 shows the holograms and the corresponding reconstructed phase maps during the anodic dissolution of 304 SS (d ¼ 6 mm) in Video-1 in the supplemental materials further shows the pitting dynamic processes. In 2021, Yuan et al (2021) used this technology to study the pitting dynamic processes of 316 stainless steel in NaCl1Na 2 CO 3 solution, and they found that a cap-covered corrosion battery was formed in a pit and that the hydrolysis of Me n1 enhanced local acidification and promoted the expansion of the pit. The DHSI technique can be used to observe not only the local corrosion but also diffusion processes.…”