Abstract
In this work, corrosion of 304 stainless steel was evaluated by using acoustic emission(AE) technique. AE measurement system was set for detecting acoustic signal during accelerated corrosion test of the specimen. AE signal started to be detected after the time of pitting corrosion initiation was evaluated by anodic polarization curve. Pitting corrosion damage was confirmed by optical microscopic observation of the surface morphology. AE cumulative counts and amplitude according to corrosion time could be divided into three stages. These trends were discussed in relation with changing pitting corrosion mechanism. Feasibilities of AE technique for evaluation of corrosion damage and mechanism were suggested.
| Translated title of the contribution | Detection of Acoustic Signal Emitted during Corrosion of 304 Stainless Steel |
|---|---|
| Original language | Korean |
| Pages (from-to) | 409-414 |
| Number of pages | 6 |
| Journal | 비파괴검사학회지 |
| Volume | 33 |
| Issue number | 5 |
| DOIs | |
| State | Published - Oct 2013 |