| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7896648 | Corrosion Science | 2013 | 24 Pages |
Abstract
A novel in situ exposure method for investigating hot corrosion of aluminde coatings in the absence of an alkali sulphate melt is presented. The samples are exposed to Na2SO4(g) at a temperature above the dew point of the gas. Results from 100 and 500 h exposures at 900 °C of Ni-based In792 covered with SIF232 aluminide coating are presented. Already after 100 h of testing, attack characteristic for Type I hot corrosion is observed. The reactions taking place during the testing are discussed and the results are compared with those from the well-known ex situ salt hot corrosion test.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Pavleta Knutsson, Haiping Lai, Krystyna Stiller,