| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1470402 | Corrosion Science | 2009 | 8 Pages |
Abstract
Intergranular corrosion (IGC) of type 409L ferritic stainless steel (FSS) was investigated. A free-exposure corrosion and a double loop electrochemical potentiokinetic reactivation (DL-EPR) tests were conducted to examine IGC of the FSS. IGC occurred in the specimens aged at the temperature range of 400–600 °C that has the sensitization nose located around 600 °C. The critical Ir/Ia value was determined to be about 0.03 above which IGC occurred. Based on the analysis of the intergranular precipitates by an energy dispersive spectroscopy (EDS) and a transmission electron microscopy (TEM), IGC was induced by the Cr depletion zone formation due to Cr segregation around intergranular TiC.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jeong Kil Kim, Yeong Ho Kim, Sang Ho Uhm, Jong Sub Lee, Kyoo Young Kim,