Effects of Deformation on Atmospheric Corrosion of Galvanized Steel

2006 ◽  
Vol 510-511 ◽  
pp. 1134-1137
Author(s):  
Jae Woong Choi ◽  
Gil Ho Hwang ◽  
Hong Rae Cha ◽  
Sung Goon Kang
Keyword(s):  
Relative Humidity ◽  
Corrosion Test ◽  
Atmospheric Corrosion ◽  
Surface Damage ◽  
Corrosion Products ◽  
Galvanized Steel ◽  
Accelerated Corrosion ◽  
Corrosion Rates ◽  
Accelerated Corrosion Test ◽  
Surface Morphologies

The effects of deformation on corrosion behavior of galvanized steel were investigated. Accelerated corrosion test was conducted under the conditions of 30oC and 90% relative humidity with flowing 200ppm sulfur dioxide gas for five weeks. Surface morphologies and corrosion products were analyzed by SEM/EDS and XRD. The corrosion products were composed of hydrates of ZnSO4. And corrosion rates of each part, bottom, bended and wall, were increased with growing strain due to surface damage and enlargement of naked surface for corrosion.

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