| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Jäppinen, Essi
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2021A comparative study of hydrazine alternatives in simulated steam generator conditions—Oxygen reaction kinetics and interaction with carbon steelcitations
- 2019Effect of lead and applied potential on corrosion of carbon steel in steam generator crevice solutionscitations
- 2017Effect of octadecylamine on carbon steel corrosion under PWR/VVER secondary side conditions
- 2017Effect of chloride transients on corrosion of low-alloyed steel under oxygenated high-temperature water conditions
- 2017Localized corrosion of pressure vessel steel in a boiling water reactor cladding flawcitations
- 2017Localized corrosion of pressure vessel steel in a boiling water reactor cladding flaw:Modeling of electrochemical conditions and dedicated experimentscitations
- 2017Corrosion Behavior of Carbon Steel Coated with Octadecylamine in the Secondary Circuit of a Pressurized Water Reactorcitations
- 2016Improving passivation of carbon steel in steam cycles of power plants with a film forming amine
- 2016Determining Zeta Potential of Magnetite Particles in PWR Secondary Side Water Treated with Ammonia or Ethanolamine by Using Streaming Potential Technique
- 2014The Effect of Temperature on the Zeta Potential of Magnetite Particles in Ammonia, Morpholine and Ethanolamine Solutions
Places of action
| Organizations | Location | People |
|---|
document
Improving passivation of carbon steel in steam cycles of power plants with a film forming amine
Abstract
Different types of corrosion phenomena present a threatfor economical, uninterrupted and safe operation of bothconventional and nuclear power plants. Many types ofcorrosion damage are induced by impurities that tend toaccumulate in crevices or beneath corrosion productdeposits. Especially important phase for corrosionprotection is during different transitions, shut-downsand at two-phase regions. Several efforts for decreasinggeneral corrosion rate and thereby also corrosion productaccumulation on power plant surfaces have been done bychanging the plant water chemistry. One very promisingprotecting method is treating systems with film-formingamines (FFA), such as octadecylamine (ODA). FFAs form athin, some nanometers in thickness, film on metallicsurfaces. Application of ODA decreases the rate of flowassisted corrosion (FAC) in the feed water line and thusreduces the amount of iron oxide that is available fordeposition. ODA has also been observed to decrease theamount of crevice corrosion and stress corrosion crackingby hindering the enrichment of chloride ions and changingelectrochemical properties of the surface. Recent studiesat VTT show that at high temperatures (T=228-300°C) underammonia water chemistry, ODA reduces carbon steelcorrosion rate by a factor of three and that theonce-formed film also remains stable at surfaces at hightemperatures.