| 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 |
|
Nguimatsia, Josiane Nguejio
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (2/2 displayed)
Places of action
| Organizations | Location | People |
|---|
document
Corrosion and stress corrosion cracking behavior of 316 L stainless steel produced by additive manufacturing wire processes in water environments
Abstract
Austenitic 316L stainless (SS) is widely used in the primary circuit of pressurized water reactors (PWR) for its good corrosion resistance in high temperature water. Wire additive manufacturing allows to repair and add features on existing components at low cost. This study aims to assess the durability of materials obtained by Wire Laser Additive Manufacturing (WLAM) in PWR primary water. Stress-relief and solution annealing heat treatments were performed on WLAM samples. To evaluate the effect of thermal post-treatment on stress corrosion cracking (SCC) susceptibility, U-bends specimens were exposed to hydrogenated water at 340°C and 160 bar for 3000h at 340°C, as well as pre-deformed polished flat specimens to conduct slow strain rate tests (SSRT) up to 6% plastic strain. Material characterizations were carried out by using optical microscopy, scanning electron microscopy, EBSD and transmission electron microscopy.Microstructure of WLAM stress-relief samples is composed of dendrites and mainly cellular austenitic grains with lathy-δ and skeletal-δ. A complete recrystallization is observed after solution annealing, altering mechanical properties. After the exposition, a duplex oxide layer is formed which is composed of a thin continuous (Ni,Fe)(Fe,Cr)2O4 oxide layer, covered by oxide crystallites of magnetite Fe3O4, similar to conventional 316L. Surface characterization of U-bends and SSRT samples clearly shows the influence of microstructure and heat post-treatment on the corrosion behavior of WLAM parts.