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51318-11273-Repassivation behavior of lean duplex stainless steels in chloride and thiosulfate environments

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In this paper, the repassivation kinetics of lean duplex stainless steels in environments containing chloride as well as thiosulfate ions was studied through the scratch test method.

Product Number: 51318-11273-SG
Author: Liang He / Preet M. Singh
Publication Date: 2018
Industry: Science of Corrosion
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$20.00
$20.00

In this paper, the repassivation kinetics of lean duplex stainless steels in environments containing chloride as well as thiosulfate ions was studied through the scratch test method. The austenite or the ferrite phase was selectively dissolved from the commercially available alloys and the remaining phase was used to study the repassivation behavior through scratch test as well as the defect density within the passive film through Mott-Schottky analysis. Results from this study have provided insights into the effect of microstructure and chemical composition on the repassivation mechanisms as well as passive film properties of lean duplex stainless steels.

 

Key words: Duplex stainless steels, repassivation behavior, scratch test method, chloride and thiosulfate environment

 

In this paper, the repassivation kinetics of lean duplex stainless steels in environments containing chloride as well as thiosulfate ions was studied through the scratch test method. The austenite or the ferrite phase was selectively dissolved from the commercially available alloys and the remaining phase was used to study the repassivation behavior through scratch test as well as the defect density within the passive film through Mott-Schottky analysis. Results from this study have provided insights into the effect of microstructure and chemical composition on the repassivation mechanisms as well as passive film properties of lean duplex stainless steels.

 

Key words: Duplex stainless steels, repassivation behavior, scratch test method, chloride and thiosulfate environment

 

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