Corrosion monitoring
US6077418A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Oct 5, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N17/043
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Corrosion of a metal member under heat transfer condition is monitored by using a test coupon made of the same material as that of the metal member. The test coupon may have a welded portion and a crevice. One substantial surface of the test coupon is heated by a sheet shaped heating element, and at least one portion of the other surface of the test coupon is contacted with the corrosive fluid. After detecting a status of corrosion of the test coupon, the corrosion of the metal member is monitored based on the results of the detection. In case a counter electrode or reference electrode is used, the electrode is immersed in the corrosive fluid, and electrical signals between the test coupon and the electrode are measured. Then, the corrosion of the metal member is monitored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.