Evaluation of Corrosion Behavior of 316L and 2205 Stainless Steel Exposed in Marine Atmosphere of South China Sea

Feng Liu, Honhqing Song, Huixia Zhang, Hongtao Tong, Bangshuang Zhang, Honglun Wang

Abstract


Austenitic stainless steel316L and Duplex stainless steel 2205 were exposed to actual atmospheric environments of south sea for half one year, and the influences of microstructures on atmospheric corrosion behavior of the two stainless steels were investigated. The results showed that the number and area of pitting corrosion for the DSS 2205 are less and smaller than that of 316L, the results of Potentiodynamic polarization shows that the pitting potential of 2205 is higher than that of 316L, which indicates that atmospheric corrosion resistance of DSS 2205 is excelled to 316L.

Keywords


Austenitic Stainless Steel, Duplex Stainless Steel, Atmospheric Corrosion, Pit


DOI
10.12783/dtcse/icmsie2017/18799

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