| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5439970 | Corrosion Science | 2017 | 36 Pages |
Abstract
The effect of cooling condition on the intergranular corrosion resistance of UNS S32506 duplex stainless steel was investigated by means of Huey test and microstructural observation. It was found that quenching at a temperature below 800 °C after air cooling at a fixed rate from solutionization temperature enhances the intergranular corrosion rate. No precipitation has been found at all cooling conditions. Formation of Cr-depletion zone on the γ phase side of the α/γ interface due to local chemical change accompanying α-γ phase transformation during air cooling is responsible for the intergranular corrosion degradation of the UNS S32506 duplex stainless steel.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Takayuki Takei, Murotsune Yabe, Fu-Gao Wei,