Journal
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
Volume 26, Issue 12, Pages 6075-6086Publisher
SPRINGER
DOI: 10.1007/s11665-017-3043-6
Keywords
atmospheric corrosion; corrosion products; dry/wet cycling test; Ni-advanced weathering steel
Categories
Funding
- National Key Research and Development Program of China [2016YFE0203600]
- National Natural Science Foundation of China [51671028]
Ask authors/readers for more resources
Corrosion behavior of Ni-advanced weathering steel, as well as carbon steel and conventional weathering steel, in a simulated tropical marine atmosphere was studied by field exposure and indoor simulation tests. Meanwhile, morphology and composition of corrosion products formed on the exposed steels were surveyed through scanning electron microscopy, energy-dispersive x-ray spectroscopy and x-ray diffraction. Results indicated that the additive Ni in weathering steel played an important role during the corrosion process, which took part in the formation of corrosion products, enriched in the inner rust layer and promoted the transformation from loose gamma-FeOOH to dense alpha-FeOOH. As a result, the main aggressive ion, i.e., Cl-, was effectively separated in the outer rust layer which leads to the lowest corrosion rate among these tested steels. Thus, the resistance of Ni-advanced weathering steel to atmospheric corrosion was significantly improved in a simulated tropical marine environment.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available