Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7895513 | Corrosion Science | 2014 | 36 Pages |
Abstract
The relation among pitting corrosion resistance, galvanic corrosion rate and phase fraction (44-63Â vol% of ferrite phase) of UNS S32205/S31803 duplex stainless steel was investigated. The highest pitting potential was observed in the sample comprising 57Â vol% of ferrite, and it decreased with increase in the phase imbalance. In the sample with 57Â vol% ferrite fraction, the lowest galvanic corrosion rate between the ferrite and austenite phases was observed. It was found that the pitting corrosion resistance of the alloy samples comprising various ferrite fractions was primarily determined by the galvanic corrosion resistance between the two constituent phases.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Heon-Young Ha, Min-Ho Jang, Tae-Ho Lee, Joonoh Moon,