Corrosion Behavior of the 2024 Aluminum Alloy in the Atmospheric Environment of the South China Sea Islands
Source abstract
Abstract
The 2024 aluminum alloy, a structural material commonly used in aviation aircraft bodies, is susceptible to serious corrosion in marine atmospheric environments. This paper comprehensively studies the corrosion behavior of the 2024 aluminum alloy in the South China Sea atmosphere. Weighing, morphology observation, phase analysis, electrochemical testing, and other methods were used to study the corrosion law and corrosion mechanism of the 2024 aluminum alloy. The main conclusions are as follows: At the initial stage of exposure, pitting corrosion occurred on the surface of the 2024 aluminum alloy. After 3 months of exposure, the self-corrosion current density increased from 0.456 μA·cm−2 to 8.338 μA·cm−2. After 6 months of exposure, the corrosion developed into general corrosion. The main component of the corrosion product was Al2O3·3H2O. The product covered the surface to form a loose corrosion product layer, which had an inhibitory effect on corrosion. The self-corrosion current density was reduced to 2.359 μA·cm−2. After 12 months of exposure, the corrosion product layer fell off and became thinner, and the self-corrosion current density increased to 2.849 μA·cm−2. The corrosion kinetics conformed to the functional equation W = 0.00346t0.73891, indicating that the corrosion products have a certain protective effect on the matrix.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Marine and Offshore Engineering Studies · Material Selection and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Nuclear Power Institute of China, Chengdu 528208, China
Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang 110819, China
Funding
National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities · Ministry of Industry and Information Technology Project
References (32)
Show source-provided references
1. Short-term atmospheric corrosion of mild steel at two weather and pollution monitored sites10.1016/0010-938X(77)90064-6 ↗
2. Mechanical performance of marine concrete filled CFRP-aluminum alloy tube columns under axial compression: Experiment and finite element analysis10.1016/j.engstruct.2022.114993 ↗
3. Behavior and design of axially loaded high-strength concrete-filled circular aluminum tubular short columns10.1016/j.istruc.2022.07.088 ↗
4. Concrete-filled double-skin aluminum circular hollow section stub columns10.1016/j.tws.2018.09.037 ↗
5. Tao, J., Xiang, L., Zhang, Y., Zhao, Z., Su, Y., Chen, Q., Sun, J., Huang, B., and Peng, F. (2022). Corrosion Behavior and Mechanical Performance of 7085 Aluminum Alloy in a Humid and Hot Marine Atmosphere. Materials, 15.10.3390/ma15217503 ↗
6. Atmospheric Corrosion Products on Al, Zn, and AlZn Metallic Coatings10.5006/1.3584923 ↗
7. Scherrer, C.J., Mauleon, J.L., and Gmerek, J.D. (1976). Compositions for Inhibiting the Corrosion of Metals. (3,981,780), U.S. Patent.
8. Discussion of “Natural and Thermally Formed Oxide Films on Aluminum” [M. S. Hunter and P. Fowle (pp. 482–485, Vol. 103)]10.1149/1.2428596 ↗
9. Long-term atmospheric corrosion behaviour of aluminium alloys 2024 and 7075 in urban, coastal and industrial environments10.1016/j.corsci.2009.01.016 ↗
10. Effect of coastal atmospheric corrosion on fatigue properties of 2024-T4 aluminum alloy structure10.1016/j.jallcom.2019.06.235 ↗
11. Exfoliation corrosion of extruded 2024-T4 in the coastal environments in China10.1016/j.corsci.2011.04.010 ↗
12. Analysis of localized corrosion mechanism of 2024 aluminum alloy at a simulated marine splash zone10.1016/j.engfailanal.2022.106759 ↗
13. Effect of static elastic stress on the corrosion behavior of 7A04 aluminum alloy exposed to real marine atmospheric environment10.1016/j.jmrt.2023.09.107 ↗
14. Effect of Different Sealing Treatments of Oxide Films on Corrosion Resistance of Anodized ZL101A Aluminum Alloy in Simulated Marine Atmospheric Environment10.20964/2022.08.51 ↗
15. Long-term corrosion behavior of the 7A85 aluminum alloy in an industrial-marine atmospheric environment10.1016/j.jmrt.2021.03.085 ↗
16. Characterization of intergranular corrosion defects in a 2024 T351 aluminium alloy10.1016/j.corsci.2017.02.020 ↗
17. Actual Xisha marine atmospheric corrosion behavior of 30CrMnSiA steel in different parts of the aircraft10.1016/j.engfailanal.2023.107684 ↗
18. Corrosion failure process of organic conductive coating on Mg-RE alloy with PEO in the simulated Xisha atmospheric solution10.1016/j.matchemphys.2022.126771 ↗
19. Investigation of corrosion behavior of Mg-6Gd-3Y-0.4Zr alloy in Xisha atmospheric simulation solution10.1016/j.oceaneng.2019.106760 ↗
20. (2012). Corrosion of Metals and Alloys, Corrosivity of Atmospheres-Classification (Standard No. ISO 9223-2012).
21. Effect of electromagnetic forming–heat treatment process on mechanical and corrosion properties of 2024 aluminum alloy10.1016/j.jmrt.2023.01.036 ↗
22. Microstructure and mechanical properties of powder metallurgy 2024 aluminum alloy during cold rolling10.1016/j.jmrt.2021.09.120 ↗
23. Long-term atmospheric corrosion of aluminum alloy 2024-T4 in coastal environment: Surface and sectional corrosion behavior10.1016/j.jallcom.2019.03.028 ↗
24. Experimental and theoretical study on corrosion inhibition of oxime compounds for aluminium in HCl solution10.1016/j.corsci.2013.12.021 ↗
25. Cassava starch-sodium allylsulfonate-acryl amide graft copolymer as an effective inhibitor of aluminum corrosion in HCl solution10.1016/j.jtice.2018.03.002 ↗
26. Corrosion inhibition study of pure Al and some of its alloys in 1.0 M HCl solution by impedance technique10.1016/S0010-938X(03)00133-1 ↗
27. Corrosion of aluminium in acidic and neutral solutions10.1016/0013-4686(93)80329-X ↗
28. Evaluation of inhibitive action of some quaternary N-heterocyclic compounds on the corrosion of Al-Cu alloy in hydrochloric acid10.1016/j.matchemphys.2008.09.065 ↗
29. Evaluation of the corrosion resistance of an epoxy-polyamide coating containing different ratios of micaceous iron oxide/Al pigments10.1016/j.corsci.2011.01.045 ↗
30. Flake-like ZnAl alloy powder modified waterborne epoxy coatings with enhanced corrosion resistance10.1016/j.porgcoat.2022.107367 ↗
31. The protective and adhesion properties of silicone-epoxy hybrid coatings on 2024 Al-alloy with a silane film as pretreatment10.1016/j.corsci.2015.11.035 ↗
32. Effect of Zr content on structure property relations of Ni-Zr alloy thin films with mixed nanocrystalline and amorphous structure10.1016/j.tsf.2018.05.050 ↗