Abstract
Thin pack and chemical vapor deposited (CVD) aluminide coatings on commercial ferritic martensitic Fe-9Cr-2W steel are being investigated by creep and corrosion testing at 650°C. Mass gain results indicate that these coatings are protective at 650°C in humid air. Comparison with bare material shows that the coated region makes no contribution to the creep strength. The consumption of metal due to the exposure in water vapor of uncoated specimens is compensated by the growth of a load-bearing oxide scale. Pre-oxidation of the alloy in humid air also affects the alloy microstructure.
| Original language | English |
|---|---|
| Pages (from-to) | 74711-747112 |
| Number of pages | 672402 |
| Journal | NACE - International Corrosion Conference Series |
| State | Published - 2007 |
| Event | Corrosion 2007 - Nashville, TN, United States Duration: Mar 11 2007 → Mar 15 2007 |
Keywords
- Creep
- Diffusion coatings
- Fenitic-martensitic steel
- Water vapor